in the process of glycolysis, four atp molecules are synthesized from four adp molecules. why does glycolysis not yield four molecules of atp?
Answers
The net benefit of glycolysis is only two ATP because the two ATP molecules are consumed in initial part of glycolysis, even if the four ATP molecules are created in second half.
One glucose molecule initiates glycolysis, which culminates with two pyruvate (pyruvic acid) molecules, four ATP molecules overall, and two NADH molecules. The cell has the net gain of two ATP molecules and two NADH molecules for usage since the two ATP molecules were required in the first half of the route to prepare six-carbon ring for cleavage. Only two ATP molecules will be produced from a molecule of glucose if the organism is unable to further catabolize pyruvate molecules (through the Krebs cycle or citric acid cycle). Pyruvate kinase, the enzyme that catalyzes the production of pyruvate, must be present in sufficient amounts for the final stage of glycolysis to take place.
The entire glycolysis pathway will in this case ,the full glycolysis pathway will continue to function, but the second half will only produce two ATP molecules (instead of the usual four ATP molecules). As a result, the rate-limiting enzyme for glycolysis is pyruvate kinase.
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Related Questions
(b) A student tested some albumen for the presence of protein using Biuret reagent.
The solution changed colour. It was a positive result.
Describe this colour change.
Answers
Answer:
The colour changes from blue to purple.
Explanation:
Because protein is present in the albumen (egg white.)
Using hierarchical levels,explain how it is possible to create different types of cells and organisms
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A word with mono-
This is writin btw
Answers
Answer:
Monotheism
Explanation:
A belief in only one god.
Why is carpolestes a prime candidate among plesiadapiforms to be a euprimate ancestor?.
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Answer:
Why is Carpolestes a prime candidate among plesiadapiforms to be a Euprimate ancestor? It had an opposable thumb. It had a nail instead of a claw on its first foot digit.
It had an opposable thumb. Its first foot finger had a nail rather than a claw. Plesiadapiforms were previously thought to be extinct members of the order Primates.
What is the Plesiadapiforms?Carpholites has a two-chambered auditory bulla, like Tarsius, which distinguishes it from early EU primates and all other known Plesiadapiforms.Plesiadapiforms are primitive primates, which means they lacked some primate characteristics while exhibiting others. Plesiadapiforms means "nearly adapiform," and refers to Plesiadapiforms that resemble some adapiforms (or adapoids; later-appearing species).Plesiadapiforms were on a much lower evolutionary stage than modern primates, possibly comparable to living tree-shrews despite sharing some skeleton traits. Plesiadapiforms first appear in the fossil record between 65 and 55 million years ago, though many had become extinct by the Eocene. They were possibly the first mammals to have finger nails instead of claws.To learn more about Plesiadapiforms, refer to:
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Which portion of a phospholipid interacts easily with water?
Answers
Answer:
The head
Explanation:
A phospholipid is composed of a glycerol and 2 fatty acid tail
The heads are hydrophilic
The tails are hydrophobic
A protistan engulfs a macromolecule via a vesicle. Which organelle could fuse to this vesicle and aid in breaking down this molecule
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In a protistan cell, a vesicle containing the macromolecule is generated by the cell membrane which will be broken down by lysosomes in which the lysosome could fuse to this vesicle and aid in breaking down this molecule.
Lysosomes are the organelles in animal cells that contain hydrolase enzymes which digest macromolecules. The vesicle carrying the macromolecule engulfs by the protistan cell membrane, then it is fused with the lysosome which carriesprotistan cellthat help in breaking down the molecule. In this way, the lysosomes aid in breaking down the macromolecule.
Lysosomes are the membrane-bound organelles in animal cells that contain hydrolytic enzymes. These enzymes are responsible for breaking down and recycling macromolecules within the cell. When a protistan cell engulfs a macromolecule via a vesicle, this vesicle could fuse with lysosomes to aid in breaking down this molecule. Once fused, the lysosome will release hydrolytic enzymes that will break down the macromolecule into smaller components that can be used by the cell. This is a vital process for protistan cells, as it allows them to obtain necessary nutrients from the environment and use them for energy and other cellular processes.
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HELPPPPPP MEEEEEEEEE PLZZZZZZZZZZ
Answers
Answer:
01). cells
02).seeing inside the cells
03).Robert hook
Choose the cells that are diploid. egg nerve bone sperm muscle
Answers
50 POINTS AND WILL BRAINLIEST!!!
Answer each part of this question completely in the space provided.
Use the data to explain the changes in phenotypic frequency from generation 1 to 3.
Do you think this population is in Hardy-Weinberg equilibrium? Provide reasoning to support your claim.
Answers
The phenotypic frequency from generations 1 to 3 shows there are naturally more individuals with the dominant trait. Moreover, changes in frequency show this population does not have Hardy Weinberg equilibrium.
What are the changes in phenotypic frequency?Phenotypic frequency refers to how common a trait is in one population. In this case, the number of individuals with a recessive vs those with a dominant trait.
From the information provided in the chart, we can see in the first three generations there is a higher number of individuals with a dominant trait, which is genetically natural, and this occurs even as the population grows.
Is there Hardy Weinberg Equilibrium?Hardy Weinberg Equilibrium is a principle that establishes under normal conditions phenotypic frequency should be constant. This does not occur in this population because by generation 6 there is almost the same number of individuals with a dominant and a recessive trait, which shows phenotypic frequency is changing.
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Which part of the nerve cell is specially constructed to transmit a message from one cell to another nerve cell?.
Answers
The part of the nerve cell specially constructed to transmit a message from one cell to another nerve cell is axon.
What is a nerve cell?Nerve cells are electrically excitable cell that communicates with other cells via specialized connections called synapses.
Nerve cells are specialized cells of the nervous system which conducts nerve impulses. Nerve cells, also known as neurons are the basic functional units of the nervous system, which are made up of three components as follows:
DendritesAxonSomaThe cell body, also called the soma contains the cell’s nucleus, which controls the activities of the cell. The dendrites are extensions that branch off the cell body and receive chemical signals from other neurons, which they convert to electrical impulses and transmit to the cell body.
Axons are a long extension that carries information away from the cell body. It is where information leaves the nerve cell and is passed on to target cells.
Therefore, the axon is the part of the nerve cell that is specifically constructed to transmit message from one cell to another.
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The reactants for cellular respiration area. glucose and ATP.b. water and ATP.c. oxygen and ATP.d. glucose and oxygen.e. carbon dioxide and glucose.
Answers
Cellular respiration is a very important process for organisms because it is from it that part of the energy necessary for survival is generated.
In respiration, we consume oxygen and glucose and form carbon dioxide, energy, and water as products.
Therefore, we can say that the reactants of cellular respiration are oxygen and glucose. Therefore, option "D" is the answer.
The invention of what instrument allowed the observation of cells.
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Answer:The Microscope
Explanation:
Often, smaller objects orbit around the above objects. What are they called (two answers)?
Answers
The smaller objects that orbit around larger objects are called "satellites" or "moons".
The Moon orbiting the Earth is an example of a natural satellite. Artificial satellites include the numerous man-made satellites that circle the Earth. Moons, on the other hand, are planetary or minor planet-orbiting natural satellites.
For instance, Jupiter has dozens of moons, including the four biggest ones known as the Galilean moons: Io, Europa, Ganymede, and Callisto, while Mars has just two tiny moons, Phobos and Deimos.
Satellites can be either natural (like the Moon) or artificial (like the International Space Station), and they play important roles in fields such as astronomy, space exploration, and communication.
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Read through the list of organisms below. Of the organisms below, which ones are autotrophs? . aquatic photosynthetic bacteria a blue whale cheetah green-winged macaw honeybee humans maple tree phytoplankton rye grass tulips
Answers
Answer:
aquatic photosynthetic bacteria, maple tree, phytoplankton rye grass tulips
Explanation:
All are plants or does phtosynthesis which is what autotrophs are.
The back bone of DNA and RNA is composed of _____. DNA is double stranded due to interactions between adenine,cytosine,guanine, and thymine, which are ____ Uracil is a
Answers
The backbone of DNA and RNA is composed of sugar phosphate. DNA is double-stranded due to interactions between adenine, cytosine, guanine, and thymine, which are nucleotide bases. Uracil is a pyrimidine nucleotide base.
DNA is the hereditary material of humans and almost all organisms. It carries genetic information. DNA is deoxyribonucleic acid and RNA is ribonucleic acid. DNA is double-stranded while RNA is single-stranded. Both DNA and RNA are protein derivatives. The base is formed of sugar phosphates. Both these carry nucleotide bases on them. Adenine, guanine, cytosine, uracil, thymidine, etc are examples of nucleotide bases. Among that adenine and guanine are purines. Cytosil Uracil and thymidine are pyrimidines.
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Help I’ll give brainless please
Answers
The mass of the wax after the melting would still be exactly 50 g
Law of conservation of massA cornerstone of physics and chemistry is the law of conservation of mass, commonly referred to as the principle of mass conservation. It asserts that mass cannot be created or removed in a closed system.
In other words, the total mass of a closed system remains constant over time, regardless of any physical or chemical changes that may occur within the system.
Since the mass of the wax would not change, it would be right to say that by this law, the melted wax would stull weigh 50g
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difference between first class and second class protein
Answers
Answer:
first- class proteins comes from eggs , meat , fish and dairy products while non - animals related foods ,like vegetables and fruits, provide second - class proteins . first - class proteins contain a necessary amount of these important amino acids , but second - class proteins only contains some of them.
Explanation:
In an experiment, a researcher prepares a reaction mixture by dissolving a substance in a buffered solution. The substance is the substrate of a certain enzyme. The researcher adds a small amount of the enzyme to the reaction mixture and measures the amount of product that is formed over time. Which of the following best predicts the immediate result of adding more substrate to the reaction mixture at the point indicated by the arrow in Figure 1?
answer choices
The amount of product will decrease until the reaction rate goes to zero.
The amount of product will increase until the reaction reaches its equilibrium point or until the substrate is used up by the reaction.
The amount of product will increase without stopping because the enzyme will be unchanged by the reaction.
The amount of product will decrease until the reaction reaches its equilibrium point or until the enzyme is been used up by the reaction
Answers
Until equilibrium is reached or all of the substrate has been eaten, the amount of product will continue to increase.
How can the rate at which an enzyme-catalyzed reaction occurs be determined?It is possible to identify enzyme catalysis by measuring the appearance of the product or the disappearance of the reactants. The same reactants may be used in a reaction, but a different catalyst may produce different results.
Which of the following would speed up how quickly reactants turn into products in a chemical reaction?The more the temperature rises, the more crashes occur. As a reactant's concentration rises, the likelihood of reactant collisions increases as well, accelerating the rate of the reaction.
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What happens to the brain during creative thinking?
Answers
Answer:
i know that creative thinking involves the interplay of the brain's default and executive control networks, and that these connections allow us to spontaneously generate ideas and critically evaluate them, respectively.Jan 1, 2020
Explanation:
Only a small amount of energy consumed by an organism is available to flow to the next organism in a food web. Which of the following statements explains a reason for this?
a
Most of the energy is used for life processes or lost as heat in the atmosphere.
b
Primary and secondary consumers compete for food.
c
There are many more producers than consumers in a food web.
d
There are many more consumers than producers in a food web.
Answers
Answer:
A
Explanation:
Because as energy is transfer from on trophic level to another by eating energy is loss to both the environment as well as the previous organism which used some of the energy for life process like respiration
The earthworm is four inches long.
O qualitative
quantitative
Answers
Answer:
qualative???
Explanation:
I think
help
Qualitative is dealing with good traits or “quality”, while quantitative deals with numbers or the “quantity”
what is the number of feathers in pigeon body
Answers
Typically a pigeon might have 1500 to 8000 feathers.
But an adult pigeon has 10,000 feathers.
-gene 1
-gene 2
-gene 3
How are these three genes related?
Answers
Answer:
Depends on the locations of these gene segment on the chromosome whether it be found on the same or different.
It can either be linked or unlinked.
How do fossil records provide evidence for evolution?
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Since they demonstrate that earlier life on Earth was distinct from the species present now, fossils are crucial pieces of evidence for evolution.
What is supported by the fossil record as evidence?The fossil record offers glimpses into the past that, when combined, paint a picture of evolutionary change over the course of the last 3.5 billion years. The picture may be smeared in spots and missing some pieces, but fossil evidence unequivocally demonstrates that life is extremely old and has evolved throughout the course of time.
Does the fossil record support natural selection?Darwin was able to use the fossil record as compelling evidence for natural selection and common descent despite the fact that it is far more comprehensive now than it was in his day.
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How can a cell increase surface area without increasing the volume?
Answers
Cells can increase their surface area by folding the plasma membrane. Total cell surface area should increase when a cell divides into two daughter cells.
There are two illustration of membrane supply that support cell division:
(1) unfolding of small surface membrane reservoirs such as microvilli and folds, and (2) exocytosis of intracellular vesicles.
As the cell radius increases, the surface area increases as the radius squared, but the volume increases as the radius cubed (much faster).
Increasing the surface area of the cell increases the amount of material that diffuses into the cell. As volume and surface area increase, volume increases more rapidly, so for every doubling of cell volume, the surface area available for uptake is halved.
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How many calories of carbs will I get from a of bread that has 47 grams of carbs in it
Answers
Answer:
4 calories per gram
Explanation:
Carbohydrates provide 4 calories per gram, protein provides 4 calories per gram, and fat provides 9 calories per gram. You can view this information on the bottom of the Nutrition Facts Panel on food packages.
If the volcanic ash from an eruption extends to 2.5 miles into the atmosphere, how many kilometers does this represent?
Answers
Answer:
4 km
Explanation:
There are 1.60934 km in a mile
2.5 m * 1.60934 km = 4 km
Name the three white poisons which should be eliminated ( but I'm addicted to...):-P
Answers
Answer:
Explanation:
Opium, mepedrone, cannabis, or weeds, I've heard these only
Stop being addict or your life's purpose is wasted, if not you, at least think of your family
5. When a stem cell divides it can either become more _______ or ________.
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Answer:
When a stem cell divides, each new cell has the potential to either remain a stem cell or become another type of cell with a more specialized function, such as a muscle cell, a red blood cell or a brain cell. There are three characteristics of all stem cells.
Explanation:
Of the following, which is NOT considered to increase the risk of developing cancer for humans?Select one:a.ultraviolet lightb.toxic chemicalsc.regular exercised.smoking
Answers
Answer is C.
Explanation: Exercise is good for the body. It helps regu