During the digestion process, why are short-chain fatty acids more easily absorbed by the body because they are somewhat water soluble.
the digestion process
The six actions that make up the digestive process are ingestion, propulsion, mechanical or physical digestion, chemical digestion process, absorption, and feces.
Ingestion, the first of these procedures, is the act of putting food via the mouth and into the alimentary canal. The meal is chewed there and combined with saliva, Both water-soluble (hydrophilic) and hydrophobic (water-insoluble) molecules can dissolve into a solution when water and an organic solvent are combined. Bilirubin diglucuronide is water-soluble due to its hydrophilic nature. Chemical and mechanical processes both take place during digestion. The process of mechanical digestion is simply physical and does not alter the chemical composition of the food. In its place, it shrinks the meal to enhance its surface area and mobility.
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Explain the importance of carbon in the large, complex structures of organic compounds. In your answer, describe at least four of carbon's properties.
The ability of carbon to catenate and the fact that it has low bond energy accounts for the fact that it forms large, complex structures of organic compounds.
What are complex organic compounds?The complex organic compounds are those compounds that are composed of carbon but they do have a very large macromolecular structure. These compounds are found in the body as well as are useful in the industry. A common example of a very large macromolecule which plays a very important role in the body is the biological molecule that we call cholesterol which is largely macro molecular.
There are several reasons that enables carbon to form these kinds of large and complex organic compounds;
1) Low bond energy: The carbon to carbon bond energy is very low and this enables carbon to link to itself many times.
2) Carbon does catenate: The ability of carbon to catenate makes the carbon atom able to link to itself in such a way that gives an infinitely large chain of carbon atoms.
3) Carbon does bond easily to hydrogen: The fact that the bond energy of the carbon hydrogen bond is low also makes it possible for carbon to bond to hydrogen in these large organic molecules.
4) Carbon bonds with electronegative atoms: It is common to observe that carbon is also able to bond with highly electronegative atoms thereby forming more compounds.
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For which type of lesion would a bandage be most important in order to keep bacteria and other pathogens from entering the body?.
during inspiration (more than one answer may apply) a. the alveolar pressure is less than the atmospheric pressure b. the intrapleural pressure becomes more negative c. the return of blood to the thoracic cavity increases d. the pco2 in the alveoli decreases
The air moves to the lungs during inspiration. The alveolar pressure must be lower than the atmospheric pressure for air to move to the lungs.
The lungs can take in air thanks to this difference in pressure. Inhaling, sometimes referred to as inspiration, is the initial phase. Inhalation causes the diaphragm to tighten and pull downward. The muscles in the space between the ribs tighten and pull upward. The thoracic cavity enlarges as a result, releasing internal pressure.
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The question was incomplete. Check below the complete question.
during inspiration (more than one answer may apply)
a. the alveolar pressure is less than the atmospheric pressure
b. the intrapleural pressure becomes more negative
c. the return of blood to the thoracic cavity increases
d. the pco2 in the alveoli decreases
How do you describe a sandstone with trilobite?
A sandstone with trilobite provides information about a variety of things like dating of the sandstone, how the earth evolved and trace fossils.
Sandstone is the sedimentary rock that is very useful as it is the reservoir for petroleum and water. It contains a lot of minerals and the rock itself is used in constructions, statues, etc.
Trilobite are the marine arthropods that are now extinct. It serves as a trace fossil that provides information about the biological activities of the extinct organism. This is how evolution of the earth can be known. This biological activity also helps in dating process.
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Phospholipids are found in a limited number of foods. They consists of a glycerol backbone with two fatty acids and a compound that contains phosphate. Why are they important in food and in the body?.
A glycerol backbone, two fatty acids, and one phosphate group make up phospholipids. This suggests that this molecule may be a phospholipid. Triglycerides are lipids that have three fatty acids attached to a glycerol molecule.
Why phospholipids are important?A phospholipid is a molecule made composed of a glycerol backbone, two fatty acids, and a modified phosphate group. The phosphate can change by having polar or charged chemical groups added to it.
A glycerol backbone, two fatty acids, and one phosphate group make up phospholipids. This suggests that this molecule may be a phospholipid. Triglycerides are lipids that have three fatty acids attached to a glycerol molecule.
Triglycerides and phospholipids are made of the three-carbon molecule glycerol. Three fatty acids, one to each of the glycerol's carbons, are present in triglycerides. Two glycerol carbons are used by phospholipids to bind fatty acids, and a third is used to bind a phosphate group.
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the phenomenon that causes a single ancestral species to evolve into a wide array of descendant species with diverse habitats, forms, or behaviors that occurs often as a result of colonization of a new area is known as
Adaptive radiation is the process through which organisms rapidly diverge from a single ancestral species into a variety of novel forms, especially when a change in the environment opens up new resources.
What kinds of circumstances can result in adaptive radiation?A species develops in a setting with few other species and abundant resources, such as islands created by volcanic activity and the eventual colonization of those islands.
How does allopatric speciation work?When a species divides into two distinct groups that are isolated from one another, allopatric speciation.
(1) Takes place. They can't breed with one another because of a physical barrier, such a mountain range or a waterway.
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which events are potential effects of a point mutation within a protein coding gene? an extra sequence of amino acids is inserted in a protein, but the protein still functions. a nucleotide is replaced with another nucleotide, but the amino acid sequence remains the same. a segment containing many nucleotides is added, and the amino acid sequence changes. an incorrect amino acid is placed in a protein, and it affects how the protein functions. a nucleotide is used in place of another, and the change results in a stop codon.
An event which is a potential effects of a point mutation within a protein coding gene is: B. a nucleotide is replaced with another nucleotide, but the amino acid sequence remains the same.
What is a nucleotide?A nucleotide can be defined as the subunit of deoxyribonucleic acid (DNA) or ribonucleic acid (RNA) which typically comprises a nitrogenous base. Additionally, some portion of the nucleotide include the following:
A nitrogenous base.A phosphate group.Deoxyribose sugar (5-carbon sugar).What is point mutation?Point mutation can be defined as a type of genetic mutation that occurs in a genome, which typically changes a deoxyribonucleic acid (DNA) or ribonucleic acid (RNA) when a single base pair is deleted, added, modified or changed (altered).
In Genomics, it has been proven by scientific research that when a point mutation occurs within the protein coding gene, it typically causes a nucleotide to be replaced by another nucleotide, while the amino acid sequence of the nucleotide would remain the same.
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g if 9% of a population is born with a severe form of sickle-cell anemia (ss), what percentage of the population will be more resistant to malaria because they are heterozygous (ss) for the sickle-cell gene, assuming the population is in hardy-weinberg equilibrium?
The H-W equilibrium theory states that, considering a diallelic gene, the addition of allelic frequencies equals 1 (p + q = 1) and the addition of genotypic frequencies equals 1 (p² + 2pq + q² = 1). The percentage of the population that is heterozygous (Ss) for the sickle-cell gene is 42%.
What is the Hardy-Weinberg equilibrium?The Hardy-Weinberg equilibrium theory states that in populations that are in equilibrium, their allelic and genotypic frequencies remain the same generation after generation.
These populations are not evolving. No evolutive forces or other events that affect their frequencies are acting on them.
Assuming a diallelic gene that codes for a trait,
⇒ Allelic frequencies are represented as p and q,
The frequency of the dominant allele p(X) is pThe frequency of the recessive allele p(x) is qThe addition of the allelic frequencies equals 1
p + q = 1.
⇒ The genotypic frequencies after one generation are
p² (Homozygous dominant genotypic frequency), 2pq (Heterozygous genotypic frequency), q² (Homozygous recessive genotypic frequency).The sum of genotypic frequencies equals 1
p² + 2pq + q² = 1
Now let us answer the question,
Sickle cell anemia is an autosomal recessive disorder, so individuals expressing this phenotype are homozygous recessive, ss.
We need to calculate the frequency of the heterozygous genotype by using the frequency of homozygous recessive individuals.
The genotypic frequency of individuals born with the disorder is 9%, so
q² = 9% = 0.09
So, knowing the homozygous recessive frequency, we will calculate the recessive allele frequency, q.
If q² = 0.09, then q = √q² = √0.09 = 0.3
So the recessive allele frequency is q = 0.3
Now we need to get the dominant allele frequency, and we will get it by clearing the equation p + q = 1
p + q = 1
p + 0.3 = 1
p = 1 - 0.3
p = 0.7
So, the dominant allele frequency is p = 0.7.
The dominant genotypic frequency is p² = 0.7² = 0.49
Up to here, we know that,
p = 0.7q = 0.3p² = 0.49q² = 0.09With these data, we can calculate the heterozygous genotypic frequency -2pq- by clearing the following equation,
p² + 2pq + q² = 1
0.49 + 2pq + 0.09 = 1
2pq = 1 - 0.49 - 0.09
2pq = 0.42
Assuming the population is in hardy-weinberg equilibrium, the frequency of heterozygous individuals Ss = 2pq = 0.42 = 42%.
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a plant cannot conduct light reaction if its cells do not contain
Answer:
firstly it doesn't conduct light , it absorbs it through the chlorphyll
In biology , you would need to use the correct and appropriate terminologies to get marked in a biology exam
Which term describes the process of sister chromatids not separating at the centromere during cell division?.
The term nondisjunction describes the process of sister chromatids not separating at the centromere during cell division.
during the metaphase time of cell division, the chromatids are aligned at the center of a cell known as the centromere. The mitotic spindle present on each end of the cell pulls these chromosomes so that each cell receives half the number of chromosomes after cell division.
However, if the chromosomes do not separate to their sides at that time then this is referred to as non-disjunction.
The process of nondisjunction might occur because the chromosomes were unable to separate themselves during the anaphase of cell division.
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the functional classification of joints is based on the type and degree of movement that they allow. what are the 3 types of joints in the functional classification?
The 3 types of joints in the functional classification are immobile joint, moveable joints and freely moveable joints.
In the field of science, synarthroses can be described as joints that are immovable.
On the other hand, those joints can move slightly and represent slight movement are called amphiarthroses.
Diarthroses can be described as joints that can move freely and completely.
Hence, based on degrees, synarthroses have no movement, amphiarthroses have little whereas Diarthroses have free movement.
Examples of synarthroses are sutures. Example of a diarthrosis is synovial joint and example of amphiarthroses are symphyses.
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in your small groups, brainstorm some ideas that could test our next question: How do antibiotics
affect bacteria when they are put together?
What experimental variables are you
comparing?
What factors or variables of your experiment
should you keep the same or controlled?
The variables to test how antibiotics affect bacteria when they are put together include the rate of bacterial growth by the unit of time, while controlled conditions include the temperature and light in all treatments.
What is a controlled variable?A controlled variable is any condition during an experimental procedure that must stay the same for all treatments in order to observe a given outcome and the specific relationships between the independent variable (in this case the unit of time) and the dependent variable (in this case the bacterial growth rate).
The controlled variable should ideally remain the same because it allows us to make comparisons between different treatments.
Therefore, with this data, we can see that a controlled variable is any variable in an experiment that remain with the same condition for all types of treatments and thus allow us to make comparisons.
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two structures that help E. coli move???
I NEED HELPP
PLEASE
under certain circumstances, the actin and myosin myofilaments can be extracted from muscle cells and placed in a beaker. they subsequently bind together to form long strands of actin and myosin. what substance could be added to the beaker to make the actin and myosin unbind? group of answer choices
Another ATP-binding site on myosin is where enzymatic activity converts ATP to ADP, releasing energy and an inorganic phosphate molecule. When ATP binding causes myosin to release actin.
What is the function myosin?The first molecular motor, myosin, is a protein that transforms chemical energy in the form of ATP into mechanical energy to produce force and movement.
What components make up myosin?A head, neck, and tail domain make up the majority of myosin molecules. With the exception of myosin VI, which moves toward the pointed (-) end of the filament, the head domain attaches the filamentous actin and produces force by ATP hydrolysis as it "walks" along the filament towards the barbed (+) end.
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practice: photosynthesis visual summary
Photosynthesis takes place in two stages. One of them involes light absortion and occurs in thylakoid membranes. The other one occurs in the stroma and does not depend on light.
What is photosynthesis?
Photosynthesis is the process through which plants take solar energy to produce organic compounds. It involves two alternating stages: light-dependent and light-independent reactions.
Light-dependent reactions occur in the thylakoids. There, while chlorophyll molecules absorb sunlight, oxygen is released from water molecules, and ATP and NADPH are produced. Light-independent reactions (Calvin cycle) occur in the stroma. During this stage, carbon dioxide fixates, and carbohydrates are synthesized. The whole cycle uses ATP and NADPH coming from light-dependent reactions.
In the exposed example, we need to label where each step of photosynthesis occurs.
Light dependent reactions: thylakoids' membrane.
Light independent reactions: Stroma
You will find the image in the attached files.
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Complete question
Practice: Photosynthesis Visual Summary
Label the two parts of the chloroplast.
Label where each step of photosynthesis occurs. Use arrows to show what goes into each part (reactants) and what comes out (products).
pls help once i finish this i can sleep!!!!
Identify the brain stem in the diagram below.
C
A
D
B
The answer is A.
I wish you a restful sleep.
in England approximately 250 years ago, the peppered moth had light-colored wing patterns that camouflaged them against the light-colored trees. Over time in urban areas, the number of peppered moths with dark-colored wings increased as pollution from the Industrial Revolution darkened the trees the moths rested on.
Answer:
Thats correct as dark places (like the darkened trees ) attract the moths..
Add your name and what ever you want ?
Answer:
mariaa meriee
Explanation:
brainlest .
In the gluteus maximus, each motor unit controls a _____________ amount of muscle fibers than a motor unit in the eye muscles.
In the gluteus maximus, each motor unit controls a greater amount of muscle fibers than a motor unit in the eye muscles.
The primary hip extensor muscle is the gluteus maximus. It is the largest of the three gluteal muscles which determines the shape of the hips. Eyes need to move with precision and with a high level of control, which is made possible by the fact that there are fewer muscle fibers connected to each neuron. This is the reason why motor unit in gluteus maximus controls a greater amount of muscle fibres than the eye.
Smaller, lower threshold motor neurons in the muscle's small motor units will be more excitable and will fire first to their skeletal muscle fibers, which also tend to be the smallest. This is how eyes work efficiently. On the other hand, limbs requires greater amount of movement and thus have a larger muscle.
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Fish or Mammals? Argumentation
Answer:
mammals
Explanation:
none needed
true or false: sexual selection is a case of natural selection that describes evolution due not to variable survival rates, but rather due to variable reproductive rates stemming from characteristics that allow an individual to successfully attract a mate. group of answer choices
distinguished between two types of sexual selection: intrasexual selection, in which members of the same sex (often males) struggle for access to mates, and intersexual selections.
What is sexual selection?In the process of sexual selection, members of one biological sex choose partners from the other sex and compete with one another for access to partners from the other sex. The sexual selection idea proposes that animals with distinctive physical characteristics, such as dramatic colour, enhanced size, or eye-catching adornments, may have an easier time finding mates.He distinguished between two types of sexual selection: intrasexual selection, in which members of the same sex (often males) struggle for access to mates, and intersexual selection, in which members of one sex (frequently females) favor members of the opposite sex.Members of one biological sex choose partners from the other sex to mate with (intersexual selection) and compete with one another for access to partners from the other sex through sexual selection (intrasexual selection).To learn more about sexual selection refer to:
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researchers tried to explain how vesicular transport occurs in cells by attempting to assemble the transport components. they set up microtubular tracks along which vesicles could be transported, and they added vesicles and atp (because they knew the transport process requires energy). yet, when they put everything together, there was no movement or transport of vesicles. what were they missing? an axon endoplasmic reticulum contractile microfilaments motor proteins
Researchers while describing movement or transportation via vesicles were missing motor proteins.
Motor proteins are a lesson of atomic engines that can move along the cytoplasm of creature cells. They change over chemical vitality into mechanical work by the hydrolysis of ATP. Flagellar revolution, be that as it may, is fueled by a proton pump.
The finest noticeable illustration of a motor protein is the muscle protein myosin which "motors" the withdrawal of muscle filaments in creatures. Motor proteins are the driving drive behind the most active transport of proteins and vesicles within the cytoplasm.
Kinesins and cytoplasmic dynein play essential parts in intracellular transport such as axonal transport and within the arrangement of the axle device and the partition of the chromosomes amid mitosis and meiosis.
Axonemal dynein, found in cilia and flagella, is pivotal to cell motility, for illustration in spermatozoa, and liquid transport, for illustration in the trachea.
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osteogenesis imperfecta (oi) is a genetic disorder linked to mutations in the genes that encode the components of type 1 collagen. the disorder is primarily characterized by individuals having bones that fracture easily. however, it also includes other features, such as blue sclera, a condition in which the whites of the eye (the sclera) are blue, and early-onset hearing loss. these characteristics of oi indicate that the genes involved exhibit pleiotropy. crossing over. discrete expression. quantitative traits. phenotypic plasticity.
These characteristics of osteogenesis imperfecta (oi) indicate that the genes involved exhibit pleiotropy. Thus, the correct option for this question is A.
What is osteogenesis imperfecta?Osteogenesis imperfecta may be defined as a type of genetic disorder that affects the connective tissues and is significantly characterized by extremely fragile bones that break or fracture easily.
Pleiotropy may be defined as a type of phenomenon in which a single gene exhibits multiple phenotypic expressions. These genes affect the metabolic pathways that considerably result in the different phenotypes.
Therefore, these characteristics of osteogenesis imperfecta (oi) indicate that the genes involved exhibit pleiotropy. Thus, the correct option for this question is A.
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a bacterial cell has a nonsense mutation in the gene that codes for hexokinase, an enzyme used during glycolysis. this mutation is most likely to affect the expression of this gene by
A nonsense mutation in the gene that codes for hexokinase will most likely to affect the expression of this gene by causing early termination during the elongation cycle of translation.
In the field of science, a nonsense mutation can be described as a kind of mutation that causes a stop codon to occur at a place where there still needs to be another amino acid.
As a result of nonsense mutation, the proteins that will be formed will be shorter and dependent on where the stop codon is added in the sequence.
Hence, if a nonsense mutation occurs in the hexokinase enzyme then this means that the translation process will terminate early. The hexokinase formed will be shorter and unfinished.
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DUE NOW PLS HELP MEEEE!!!!!
Each fossil with the layer where it will be present based on are layer A-BIRDS, layer B -dinosaurs , layer C-amphibians, layer D-Corals ,layer E -trilobites.
What is the oldest fossil layer?The Pilbara area of western Australia's Strelley Pool is home to the oldest known fossils. Stromatolites are fossilized mats of microorganisms wedged between sedimentary layers. The fossils have an age of 3.4 billion years.
How are the layers containing the fossils organized?The Law of Superposition, which asserts that in undisturbed rock sequences, the bottom layers are earlier than the top ones, is the foundation for this theory. Because of this, certain fossil discoveries can be dated using the strata—a particular stratum of rock—in which they were discovered.
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bill, age 50, is depressed and suffers from headaches, joint pain, and fatigue. he is referred to an endocrinologist who orders tests that indicate bill has an enlarged heart and overproduction of growth hormone. the endocrinologist also notes bill has enlarged bones, especially his facial bones, hands, and feet. the most likely diagnosis for 50-year-old bill is .
Osteoporosis makes bones weak and brittle, so fragile that even minor stressors like coughing or bending over can break them. Hip, wrist, and spine fractures brought on by osteoporosis are the most frequent.
What is Osteoporosis?Bone is a living tissue that constantly degrades and is replaced. Osteoporosis is a condition which is seen in females and sometimes in males.
Osteoporosis can affect people of all races. It is usually occurs due to calcium deficiency but menopause is also one of the reason for this. A lots of bone loss takes place. Apart from it lots of leg pain and back pain happens.
Back pain from a shattered or compressed vertebrae is one of the signs, as is gradual height loss.
Therefore, Osteoporosis makes bones weak and brittle, so fragile that even minor stressors like coughing or bending over can break them. Hip, wrist, and spine fractures brought on by osteoporosis are the most frequent.
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What is the primary difference between alcohol fermentation in yeast and lactic acid fermentation in muscle cells?.
The primary difference between alcohol fermentation and lactic acid fermentation is that alcohol fermentation yields carbon dioxide and ethyl alcohol, whereas lactic acid yields molecules of lactic acid from pyruvate.
A metabolic process in which glucose is transformed into the metabolite lactic acid fermentation lactate and energy in cells bacteria like Lactobacillus and yeast typically perform lactic acid fermentation.
It takes place in two main stages: fermentation and glycolysis. The cytosol is the site of both lactic acid fermentation and glycolysis. The metabolic process by which glucose is transformed into ethanol and carbon dioxide is referred to as alcoholic fermentation.
Yeast and a few other bacteria do most of the work. In the absence of oxygen, alcoholic fermentation also takes place in the cytosol.
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a membrane protein in a plant root uses atp to transport nitrate ions from a fertilizer solution in the soil and concentrates them in the cell. this process is called:
Transport is fueled by active transport, which utilizes ATP's stored energy. Integral proteins in the cell membrane, which are comparable to pumps, are used in the active transport of small molecular-sized material to move material.
Moving upwards is considered active transportation.
A cell must use energy to transfer materials against a concentration or electrochemical gradient. This is exactly what active transport systems accomplish, using energy—often in the form of ATP—to keep the proper concentrations of ions and molecules in living cells.
A symporter is a carrier protein that transports two molecules in the same direction. An antiporter is a carrier protein that transports two molecules in opposing directions. Nevertheless, some porters are able to move a single molecule across the membrane. They're known as uniporters.
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what is the equation for photosynthesis? what are the two steps and where do they occur in the chloroplast? what is photosystem 2 and what happens there? what happens while electrons are traveling between ps2 and ps1? how is atp generated? what is the role of ferredoxin? what happens to water at ps2? what is cyclic photophosphorylation? describe chemiosmosis what is the role of atp synthase?
The process of photosynthesis is commonly written as:
6CO₂ + 6H₂O → C₆H₁₂O₆ + 6O₂.
The light-dependent and light-independent reactions are the two steps. The light reactions of photosynthesis take place in the thylakoid membrane, whereas the dark reactions are located in the chloroplast stroma.
In higher plants, algae, and cyanobacteria, a membrane protein supercomplex called photosystem II (PSII) carries out the first step of photosynthesis. To accelerate a transmembrane charge separation, it absorbs sunlight.
To begin photosynthesis, a photon interacts with photosystem II's antenna pigments. The hydrogen ions are pumped into the interior of the thylakoid by the electron transport chain after the energy passes through the reaction center, which contains chlorophyll a. A significant ion concentration is created by this action.
During photosynthesis, it is the conversion of ADP to ATP utilizing solar energy. In the mitochondria of a cell, the process of cellular respiration also results in the formation of ATP.
Chloroplasts include ferredoxin (Fd), an enzyme that facilitates electron transport and has an iron-sulfur cluster. When being oxidized or reduced, its iron atoms accept or release electrons, which is how it participates in the photosynthesis process.
Hydrogen ions, oxygen ions, and electrons are separated from water. Within the thylakoid lumen, oxygen and protons created by the splitting of water are discharged.
Cyclic photophosphorylation, is described as the production of ATP related to electron transport that is only activated by Photosystem I (700 nm). The particular Photosystem II inhibitors CMU, DCMU, and orthophenanthroline have no impact on this process.
The enzyme that produces ATP via chemiosmosis is called ATP synthase. It permits protons to cross the membrane and generates ATP by phosphorylating adenosine diphosphate (ADP) with the free energy difference. In addition to mitochondria and chloroplasts, most bacteria and archaea also produce ATP by chemiosmosis.
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as a result of glycolysis, pyruvate oxidation and the citric acid cycle, only a small portion of the energy of glucose has been converted to atp. at this point, the majority of the usable energy is contained in:
The majority of the usable energy is contained in reduced electron carriers NADH and FADH2.
Glycolysis, pyruvate oxidation and the citric acid cycle only a small portion of energy is converted into ATP. Glycolysis starts with one molecule of glucose and ends with two pyruvate (pyruvic acid) molecules, a total of four ATP molecules, and two molecules of NADH .
Pyruvate from glycolysis is converted to acetyl CoA so it can enter the citric acid cycle. Pyruvate is modified by removal of a carboxyl group followed by oxidation, and then attached to Coenzyme A. one molecule of pyruvate produces 15 ATPs in total.
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