To answer this question we need to remember a little of the cell cycle and the cell division process. When cell division starts (Prophase) the DNA condensates and forms chromosomes, at this point DNA, has to be already duplicated because when acquires a condensed form it can't be replicated or transcribed. Therefore replication occurs before, this is during the S phase (synthesis) of the cell cycle, previous to any phase of mitosis and meiosis.
Answer:
No, the replication of DNA does not occur during anaphase. DNA replication occurs during the synthetic phase (S phase) of the Interphase.
2. What is the importance of NAD+ cycling back up to glycolysis?
The cycling of NAD+ back up to glycolysis is crucial for sustaining energy production, maintaining redox balance, and allowing for the efficient functioning of cellular respiration.
The cycling of NAD+ back up to glycolysis is crucial for the efficient functioning of cellular respiration and energy production. Here are the key reasons for its importance:
NAD+ regeneration: During glycolysis, glucose is metabolized to produce energy in the form of ATP. As part of this process, NAD+ acts as an electron carrier, accepting electrons from glucose and becoming reduced to NADH. NADH carries these electrons to the electron transport chain for further ATP synthesis. However, NAD+ is required to sustain glycolysis. Without a mechanism to regenerate NAD+ from NADH, the glycolytic pathway would quickly halt due to a lack of available NAD+. Therefore, the cycling of NAD+ is crucial for maintaining a continuous supply of NAD+ for glycolysis.ATP production: The regeneration of NAD+ is directly linked to ATP production. NADH carries high-energy electrons to the electron transport chain, where they are used to generate ATP through oxidative phosphorylation. If NADH accumulates and NAD+ levels decrease, electron transport and ATP synthesis would be compromised, resulting in reduced energy production.Redox balance: The cycling of NAD+ is essential for maintaining redox balance within the cell. As NAD+ accepts electrons during glycolysis, it becomes reduced to NADH. Regenerating NAD+ from NADH helps balance the cellular redox state, ensuring that other redox reactions in the cell can proceed smoothly. Without NAD+ cycling, an imbalance in the redox state could lead to disruptions in various metabolic pathways and compromise cellular function.Learn more about Glycolysis, here:
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which of the following traits was the most important in enabling the first plants to move onto land? rings of cellulose synthesizing complexes alternation of generations apical meristems development of sporopollenin to prevent desiccation of the zygote peroxisome enzymes that minimize losses from photorespiration
Development of sporopollenin to prevent desiccation of the zygote
What is cellulose?
The polysaccharide cellulose, an organic molecule with the formula n, is made up of a linear chain of several hundred to many thousands of D-glucose units that are covalently bonded. Green plants, numerous types of algae, and oomycetes all have basic cell walls that contain cellulose as an essential structural element.
A molecule called cellulose is made up of hundreds, and occasionally even thousands, of carbon, hydrogen, and oxygen atoms. Cellulose, the main substance in plant cell walls, keeps plants stiff and upright.
Ceralacell is not a protein, no. Proteins are made up of a number of amino acids connected together by a peptide linkage, whereas cellulose is a polysaccharide made up of a linear chain of many linked D-glucose units.
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Having warm weather all year with a distinct winter and summer season where winter is a long, dry, and slightly cooler season with only 4 inches of rain on average, and summer is a very hot, humid, and wet season with 15 to 25 inches of rain, with monsoon rains beginning in may describes the _______ biome(s). a. rainforest b. savanna and grassland c. deciduous forest d. chaparral please select the best answer from the choices provided a b c d
Having warm weather all year with a distinct winter and summer season where winter is a long, dry, and slightly cooler season with only 4 inches of rain on average, and summer is a very hot, humid, and wet season with 15 to 25 inches of rain, with monsoon rains beginning in may describe the Savanna and grassland biome.
In Savana grassland, the trees are scattered and dispersed all over the place.
Most Savana and grassland forests are found in Africa covering an area of about 5 million square miles.
However, these forests are also abundant in South America, Australia, and India. In these regions, precipitation takes place all year round.
In the formation of Savana and grassland ecosystems, climate plays an important role.
In general, Savana is classified as broad-range grasslands typically dispersed over a large area.
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Answer:
The type of biome described with distinct winter and summer seasons is the savanna and grassland.
Explanation:
This type of biome is experienced both in Africa and in Australia the biome has two distinct seasons which are summer and winter, winter happens to be the dry season while summer is the wet season where rain is experienced.
The average rate of rain throughout the year during the wet season is around 15 to25 inches
The biome usually has grass and some scattered trees this is due to the lack of enough rainfall to support trees to grow
The wet season is during the summer and it is warmer in the rainy season than in the dry season because it is humid, winter is the dry season with clear skies and lower humidity.
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Which option best describes the purpose of carbohydrates?
O food to be converted into a source of energy
O protective insulation for nerves
O critical component in muscle tissue
a form of long-term energy storage
the transformation of food into a fuel source.
A is the ideal answer.
Describe carbs.Molecular sugars make up carbohydrates, or carbs. One of the three primary nutrients included in meals and beverages, together with proteins and fats, is carbohydrate.
The body converts carbs to glucose. The primary fuel for your body's cells, tissues, and organs is glucose, also known as blood sugar. The liver and muscles can store glucose for later use or it might be used right away.
Why are carbohydrates necessary?The body receives glucose from carbohydrates, which is then transformed into energy for use during physical activity and maintaining biological functions.
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Which of these items are made of cells? Check all that apply.
air
bacteria
horses
humans
mushrooms
rocks
water
(20 points)
Answer:
Horses
Humans
Mushrooms
Explanation:
Air, rocks, and water may have cells in them but they are not made of cells in and of themselves.
Bacteria is prokaryotic meaning it is a single cell so it is technically not "made of cells".
Horses, humans, and mushrooms are all made of cells.
23. List the layers of the Earth from most dense to least dense?
what's the layers of earth
The five types of cells found in the epidermis are stem cells, keratinocytes, tactile cells, dendritic cells, and?.
place these events related to the history of earth in chronological order (from old to new) a) first prokaryote stromatolite b) stanley and urey's experimental verification c) accumulation of atmospheric oxygen d) first flowreing plant archefuctus liaoningensis e) pulbication of origin of species
first prokaryote stromatolite
pulbication of origin of species
stanley and urey's experimental verification
accumulation of atmospheric oxygen
first flowreing plant archefuctus liaoningensis
What is history of the earth?The evolution of the planet Earth from its creation to the present is the subject of Earth history. The major occurrences of Earth's past, which were marked by continuous geological change and biological evolution, have been better understood thanks to the work of nearly all fields of natural science.
The date of Earth's formation is 4.5 billion years ago (abbreviated Ga for gigaannum), and evidence points to the emergence of life earlier than 3.7 Ga. Although there is some evidence of life as early as 4.1 to 4.28 Ga, it is still debatable because it's possible that the so-called fossils didn't originate biologically.
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pls help due now!!!!!!!!!!
Answer:
a
Explanation:
In eukaryotes, the oxygen-requiring reactions of aerobic cellular respiration occur in cellular organelles called.
In eukaryotes, the oxygen-requiring reactions of aerobic cellular respiration occur in cellular organelles called mitochondria.
The mitochondria are the organelles that are referred to as the powerhouse of the cell because the process of energy formation of the cell takes place in this organelle.
Energy is derived by a cell for its functioning through the process of cellular respiration that occurs in the mitochondria. In this process, glucose and oxygen react in order to release energy in the form of ATP.
The process of glycolysis is the stage of cellular respiration that occurs in the cytosol and it does not require oxygen. The oxygen-requiring process i.e the citric acid cycle and the electron transport chain occur in the mitochondria of a cell.
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Which of the following statements accurately explains the relationship between time of day and water transport through the plants? (Answer choices in the photo, and a graph.)
The best option would be the letter B. At night, the stomata are closed so water in the leaves cannot evaporate, which reduces the need fro absorption of water at the root.
Could you please answer number 2a and b with number
3a and b as well I will mark as brainliest
Answer: I will just provide the answers together with the explanation.
Explanation:
1.a) Digestive enzymes breakdown large food molecules into smaller soluble forms.
b) Food needs to be absorbed into the blood in order for it to be carried into the cells through the blood and for this it needs to be soluble into the blood otherwise the cells will not get nutrition. Digestive enzymes breakdown the food into very small soluble form so that they are easily soluble in the blood
2.a) It accurately depicts the breakdown of a large object into smaller pieces
b) There are different enzymes for different substances. One enzyme cannot breakdown all substances like one scissor can cut different shapes.
Extra info: The substances broken down by enzymes are called substrates. If the shape of the substrate does not match with the active site (where the breakdown occurs) of the enzyme, the enzyme will not affect it at all.
3.a) The model clearly depicts that the enzymes need to match with the substrates like keys to a lock for it to affect the substrate. the mouth of the spanner is like the active site of the enzyme. It only works when the shape of the nuts matches with it.
b) It shows that the substance itself is not broken down but pieces of the substance is taken apart which enzymes do not do. Enzymes breaks down a substance completely into smaller parts.
Describe how the light-dependent and light-independent reactions work together in photosynthesis
According to the research, in photosynthesis, through the light-dependent reactions energy is contained in the NADPH and ATP molecules that is used by light-independent reactions.
What is photosynthesis?It is the process that converts solar energy into chemical energy which, stored in cells, allows the formation of carbohydrates and other organic molecules.
In this sense, the light-dependent reactions occur in the thylakoids whose chemical energy is comprised of molecules of two types NADPH and ATP.
On the other hand, light-independent reactions occur in the chloroplast matrix with the intervention of enzymes that intervene in the reduction of CO2 molecules to establish carbohydrates through the energy sources ATP and NADPH.
Therefore, we can conclude that the light-dependent reactions in photosynthesis manufacture ATP and the reducing source NADPH necessary for light-independent reactions.
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2. This gemstone has a range of purple colors:
Oamethyst
garnite
Oturquoise
O jade
O peridot
This gemstone has a range of purple colors is amethyst.
What is amethyst?Amethyst is a violet variety of quartz. Amethyst, also known as Jamunia, is one of the most well-known substitutes for blue sapphire. Amethyst is a violet quartz variety. The name derives from the koine Greek o amethysts, from - a-, "not" and methysko / method, "intoxicate," a reference to the belief that the stone protected its owner from intoxication. Amethyst, also known as "the all-purpose stone," is a protective stone that aids in the relief of stress and anxiety, as well as the symptoms that accompany it, such as headaches, fatigue, and anxiety. It also helps with cell regeneration (which supports your bones and joints) and is said to improve your skin.To know more about amethyst, refer
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I don’t understand this question
Answer:
Explanation:
which question do you not understand?
if you write the question you do not understand, I can help you
Put the following in order from simplest to most complex: nucleus, butterfly, heart, circulatory system, cardiac cell, cardiac tissue
Answer: Nucleus, Cardiac Cell, Cardiac Tissue, Heart, Circulatory System, Butterfly
Explanation:
This is the order from the smallest organism to the largest.
The Nucleus of a cell contains genetic material called DNA, making it the smallest and simplest object on this list. Next is a Cardiac cell that contains the Nucleus and several other organelles. Next is Cardiac tissue, made up of millions of cardiac cells. After is a Heart, made up of cardiac tissue. Following the heart is the Circulatory system; multiple organs with different functions make up an organ system. Last is a Butterfly, a complex organism containing multiple organ systems.
Select the correct order of the final three stades in the lytic cycle
The correct order of the final three stages in the lytic cycle is Assembly > Transduction > Release
What is a Lytic cycle ?One of the two viral reproduction cycles, the other being the lysogenic cycle, is the lytic cycle. The infected cell and its membrane are destroyed as a result of the lytic cycle. Virulent phages are bacteriophages that only utilise the lytic cycle.
Although the lytic cycle's final result is the generation of new phage offspring and the death of the host bacterial cell, this is a multistep process that requires careful synchronisation of physical processes and gene transcription.The primary distinction between the lytic and lysogenic cycles is that the lytic cycle kills the host cell, but the lysogenic cycle does not. The host cell's DNA is destroyed by viral DNA, which also halts the cell's lytic cycle.Learn more about Lytic cycle here:
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you take a summer vacation by the ocean in P.E.I. you love the ocean plants you see and you decided to bring some home for the fish tank. after a week or two, you notice that your plants are not thriving to live in your freshwater tank. use your knowledge you gained in this chapter to propose a reason for this
The reason that the plants are not thriving to live in your freshwater tank is due to slow growth, and lack of adequate lighting and carbon dioxide.
How to illustrate the informationFrom the information illustrated, during the summer vacation, the person saw the ocean plants and decided to bring some home for the fish tank. Plants require nutrients for the same reasons that animals do. They require them in order to germinate, grow, combat diseases and pests, and reproduce. Nutrients, like animals, are required in bigger, smaller, or trace amounts for the plant to be healthy.
Nitrogen is the growth ingredient responsible for green, leafy growth. Nitrogen, as a primary component of proteins, is found in every living cell. As a result, this nutrient is usually more responsible for stimulating plant growth than any other.
It was later noticed that after a week or two, the plants are not thriving to live in your freshwater tank. In this case, the important thing to do is to create a consistent light that will compensate for the cycle. The fact that the ocean water is salted and the nutrients gotten from the ocean is also another contributory factor to the changes noticed.
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Which cell type is only located in two layers of the epidermis, the stratum spinosum and the stratum granulosum?.
Which of the following answer choices BEST supports the idea that most attempts by scientists to create new elements will fail?
The answer choice which best supports the idea that most attempts by scientists to create new chemical elements will fail is that: (D) scientists have to repeat their experiments an enormous number of times; if it works once it's seen as a success.
What is a chemical element?A chemical element can be defined as a pure substance that comprises atoms having the same atomic number (number of protons) in its nuclei and as such, it is the primary constituent of matter. Also, a common characteristics for all chemical elements found on the periodic table is mass and volume.
In Chemistry, some examples of a chemical element include the following:
Carbon (C)Oxygen (O)Argon (Ar)Sodium (Na)Potassium (K)Mercury (Hg) Hydrogen (H)Zinc (Zn)In this scenario, we can reasonably infer and logically deduce that a statement which indicates that an attempt by scientists to create new chemical elements will fail is stating that "scientists have to repeat their experiments an enormous number of times; if it works once it's seen as a success." because an experiment to create new chemical elements must be tested and they all should have multiple successful results.
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Complete Question:
Which of the following answer choices BEST supports the idea that most attempts by scientists to create new elements will fail?
(A) Scientists have to create a target with a carefully chosen atom; this is a process that takes months.
(B) Scientists have to smash atoms together and get them to stick; a positive charge makes them repel each other.
(C) Scientists have to bombard particles with specific protons; specialized atoms combine with neutrons.
(D) Scientists have to repeat their experiments an enormous number of times; if it works once it's seen as a success
achondroplastic dwarfism involves a spontaneous genetic mutation resulting in chondrocytes that fail to multiply and enlarge at epiphyseal plates. considering this information, why do flat bones develop normally in a person with achondroplasia?
In achondroplasia, the frame has trouble turning cartilage into bone, particularly in the long bones of the arms and legs. This outcome in shortened bones, brief stature, and other different physical characteristics.
In achondroplasia, this protein starts offevolved to characteristic abnormally, slowing down the growth of bone inside the cartilage of the growth plate. This leads to shorter bones, abnormally-shaped bones, and shorter stature; a person top in human beings with achondroplasia is between 42 and 56 inches.
Dwarfism (skeletal dysplasia) impacts bone growth in your body. The most common bones that dwarfism influences are the long bones inside the arms and legs, however, it is able to have an effect on different bones together with the bones to your legs and arms as well as your stomach and head.
Achondroplasia is a bone increase sickness that causes disproportionate dwarfism. Dwarfism is defined as a situation of quick stature as a person. people with achondroplasia are brief in stature with a normal-sized torso and brief limbs. it's the most common form of disproportionate dwarfism.
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Triglycerides are the most common lipid found in food and in the body; they consist of a ____________ backbone attached to three fatty acids.
Triglycerides are the most common lipid found in food and in the body; they consist of a glycerol backbone attached to three fatty acids.
In the field of science, triglycerides can be described as a type of lipids that help in generating energy for the body.
As the name suggests, the structure of triglycerides is in the form of a triester. This triester comprises of three fatty acid molecules and a backbone that is made from glycerol.
Although triglycerides are used to derive energy however higher levels of triglycerides can be toxic to your body.
Triglycerides car most commonly found in food as well as in the body of an individual.
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Q1.
Table 1 shows information about some food components in cow’s milk.
Table 1
Recommended Daily Allowance (RDA) for a typical adult Energy in kJ 1046 8700
Fat in g 8.4 70.0
Salt in g 0.5 6.0
Calcium in mg 605 1000
Vitamin B-12 in μg 4.5 2.4
(a) How much more milk would a typical adult have to drink to get their RDA for calcium compared with the amount of milk needed to get their RDA for vitamin B-12?
Please show workings
A typical adult would have to drink 566.6 cm³ more milk to get their RDA for calcium compared with the amount of milk needed to get their RDA for vitamin B-12
What volume of milk is needed to meet the Recommended Daily Allowance for Calcium and Vitamin B-12?The volume of milk needed to meet the Recommended Daily Allowance for Calcium and Vitamin B-12 is calculated as follows:
RDA for calcium = 1000 mg
500 cm³ of milk contains 600 mg
Volume of milk required for RDA calcium = 1000 * 500 / 600
Volume of milk required for RDA calcium = 833.3 cm³
RDA for Vitamin B-12 = 2.4 µg
500 cm³ of milk contains 4.5 µg
Volume of milk required for RDA Vitamin B-12 = 2.4 * 500 / 4.5
Volume of milk required for RDA Vitamin B-12 = 266.7 cm³
Difference between the Volume of milk required for RDA calcium and RDA Vitamin B-12 = 833.3 cm³ - 266.7 cm³ = 566.6 cm³
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jane has a son who has duchenne muscular dystrophy, which is inherited as an x-linked recessive trait. at a molecular level, the disease is due to lack of the protein dystrophin. jane participates in a study to look at dystrophin levels in various muscles, so she has cells sampled from 10 different muscles. some cells make dystrophin, and some do not. an explanation for this finding is that
A possible explanation for this finding is that in some cells but not others, the x chromosome with the mutation is turned off. Duchenne Muscular Dystrophy is a heritable condition that causes gradual muscle weakness, usually in boys.
- More about Duchenne muscular dystrophy :
- Frequent falls, difficulty getting up or running, a waddling gait, large calves, and learning impairments are all signs of Duchenne muscular dystrophy.
- Although there is no cure, corticosteroids and physical therapy can help reduce symptoms and enhance quality of life.
- Researchers have discovered some of the mutated genes, which are brought on by a genetic mutation on one of the mother's X chromosomes. A genetic defect in the production of dystrophin, a protein that prevents muscle fibers from degrading when exposed to enzymes, results in Duchenne muscular dystrophy.
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A container holds 100 atoms of an isotope. This isotope has a half-life of 1.5 months. How many atoms of the radioactive isotope will be in the container after 3 months
answer: 25 atoms
25 atoms of the radioactive isotope will be in the container after 3 months.
Half life is the amount of time over which the number of parent isotopes decreases by half. When Two containers hold the same radioactive isotope. The half-life of a radioactive isotope is the amount of time it takes for one-half of the radioactive isotope to decay. The half-life of a specific radioactive isotope is constant.
The half-life of a reaction is the time required for the reactant concentration to decrease to one-half its initial value. The half-life of a first-order reaction is a constant that is related to the rate constant for the reaction: t1/2 = 0.693/k.
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after experimenting with the effects of ph on enzymes, would you suspect that human blood has a constant ph? why? what would be the adaptive advantage of this?
Human blood has a constant pH so as to ensure that other enzymes and protein present in it are not denatured and the adaptive advantage of this is the ability to eat or ingest substances of any pH.
What is pH?This is referred to as power of hydrogen and is also the degree of acidity or alkalinity if a substance. Enzymes on the other hand are biological catalyst which speeds up the rate of a reaction and is done by lowering the activation energy.
Enzymes are proteinous and can be denatured by high temperature and a pH which is in its extreme value. The pH of blood is constant as a result of the lungs and kidneys regulating it. This is important as it ensures that metabolic processes aren't hindered and ingesting any edible substance won't be a problem.
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How can local sensing be beneficial in your everyday life?
Local sensing can be beneficial in a person's everyday life as it is used in measuring the amount of ozone in the atmosphere using ground-based devices or detecting sea-surface temperature from an orbiting satellite.
What is local sensing about?In local sensing, even though some environmental measurements, like a backyard rain gauge, can be taken right at the source, this is not always practical. Many quantities or characteristics can only be measured remotely or can only be measured remotely with the greatest accuracy.
The Benefit of Local sensing are: Air pollution is a well-known cause of health problems, such as trouble breathing and eye, nose, and throat irritation. local-sensing data can be used to support targeted warnings for the people who are most affected by poor air quality, such as asthmatics, but they can also help inform policy-makers in charge of regulating air pollutants.
In conclusion, local sensing data provide vital information needed to track and forecast meteorological and climatic change, detect and secure our borders, and monitor large-scale changes in land use.
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HURRRRRY
Identify the structures in the cell pictured on the right.
Label A
Label B
Label C
Label D
A prokaryotic cell is labeled. Part A is the outside of the cell. Part B is the inside of the cell. Part C are the small dots inside the cell. Part D is the large swirly structure inside of the cell.
Explanation:
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are you satisfied
what is energy coupling? what is energy coupling? the use of an enzyme to reduce ea the use of energy released from an exergonic reaction to drive an endergonic reaction the hydrolysis of atp to adp p a barrier to the initiation of a reaction
The use of energy released from an exergonic reaction to drive an endergonic reaction.
Energy coupling happens when the electricity produced with the aid of one reaction or gadget is used to force another reaction or system. endergonic. Describing a response that absorbs power from its environment. exergonic: Describing a reaction that releases strength into its environment.
Energy coupling, by using definition, stands for the idea of coupling two organic reactions; which means energy generated from one reaction is used to power the second response. of the kind reactions or organic structures are coupled together or positioned into synchrony this way.
Energy coupling takes place whilst a response that releases energy is used to gas a response that calls for electricity to enter. The reaction that releases strength is called exergonic, and the response that takes in power is called endergonic. keep in mind, for instance, the sodium-potassium pump.
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What is Chargaff’s Rule? How can we use that to compare species' DNA?
Answer:
equivalence rule
Explanation:
