Pyruvate oxidation is the step that connects glycolysis to the citric acid cycle through the generation of acetyl-CoA.
The first thing that happens after glycolysis is that pyruvic acid passes from the cytoplasm to the mitochondrial matrix, crossing the membranes.
Pyruvic acid undergoes oxidation, a CO2 molecule is released and an acyl group (CH3-CO) is formed.
In this reaction, one molecule of NADH is formed, as in glycolysis the final product was two molecules of pyruvic acid, now two of NADH will be formed for each molecule of glucose.
Each acyl group binds to a Coenzyme A and acetyl Coenzyme A is formed, at this time the citric acid cycle begins.
Acetyl-CoA is degraded in the citric acid cycle to produce energy when cellular needs demand it.
Therefore, we can conclude that glycolysis achieves from the degradation of glucose to obtain 2 molecules of pyruvate, which is a previous step to give acetyl-Coa, which is the starting molecule of the citric acid cycle.
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In the 1950s, Stanley Miller performed experiments to study the origins of life. He created an atmosphere rich in methane, hydrogen, ammonia, water, and simulated lightning. Which substances were most likely produced during Miller’s experiments?
A. protists
B. bacteria
C. amino acids
D. RNA strands
Answer:
c. amino acids
Explanation:
The substances most likely produced during Miller's experiments would be amino acids.
In their simulation of the early atmosphere, Stanley Miller was able to obtain a mixture of organic compounds in the broth with the major one being amino acids.
The discovery of Stanley Miller gave further credence to the chemosynthetic theory of the origin of life because amino acids form the building blocks of proteins and proteins are essential for the onset of life.
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Which of the following is not a rock type?
a. igneous
b. sedimentary
C. cubic
d metamorphic
Answer:
C. Cubic!!! Hope this helps!
Explanation:
Identify the wave that has the highest amount of energy
Answer:
the tallest one
that is the amplitude
would you rather get hit by which wave if it were water?
Explanation:
What are the differences between carnivorous animals and omnivorous animals?
1. Wave speed depends on the type of wave, the _______ , and the medium the wave is traveling through
All human beings differ from one another by roughly what percentage of their total DNA?
Answer:
All human beings are 99.9 percent identical in their genetic makeup. Differences in the remaining 0.1 percent hold important clues about the causes of diseases.
ANSWER FOR BRAINLIEST AND 40 POINTS!!!!!!
Answer:
true
Explanation:
What are the three states or forms water can be found in?
Which structure is found most likely in green plant cells but not in animal cells?
A. Large vesicle
B. Mitochrondrion
C. Cell membrane
D. Nucleus
True or fasle? Cells have to divide when becoming too large so that the cell can
maintain homeostasis.
Answer:
True
Explanation:
The cell has to dividewhen it comes to large, because the cell wall is not big enoughtpo maintain all inside the cell when to large.
Which of these decomposers has a muscular foot to move around that are found worldwide wherever there is sufficient moisture and who eat plant particles from rocks, soil, seaweed and other objects, and eat animals that don't move. They recycle nutrients in your garden after digesting the rotting plants after the harvest.
Question 1 options:
fungi
snail
earthworm
pill bug
Answer:
thats a whole l
Explanation:
GIVING BRAINLIEST!!!
What is a similarity between reduced space and a lack of food?
A) They both cause animals to move where there are less resources.
B) They both affect prey more than they affect predators.
C) They can both cause animals to move to a new environment.
D) They both affect plants more than they affect animals.
The similarity between reduced space and a lack of food is the option "C" they can both cause animals to move to a new environment.
How does population affect resources?Prompt population growth continues to be a significant underlying force of environmental degradation and a hazard to the sustainable use of natural resources.
It diminishes the quality and quantity of natural resources through overexploitation, intensive farming and land fragmentation.
Thus, option "C" is correct.
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Which was first launched during the Space Race?
rover
satellite
space shuttle
space station
Answer:
Satellite or space shuttle but im pretty sure satellite
Explanation:
Answer:
B.) Satellite
Explanation:
got it right on test
PLEASE ANSWER ASAP!!!!
A high population of greater prairie chickens once inhabited the prairies of Illinois. The conversion of the prairies into agricultural land caused the chickens to lose their habitat. Studies have concluded that this change greatly reduced the greater prairie chicken population. The habitat loss also resulted in a decrease in the population’s genetic variation.
Which change in the gene pool occurred in the greater prairie chicken population?
gene mutation
gene flow
genetic drift
genetic resistance
Answer:
The answer is C. genetic drift
Hope this helped <3
Answer:
c
Explanation:
did it on edge 2023
Describe what would happen to mass and weight if you were on
the moon.
Answer:
the moon's weight is less than the Earth so the moon will not pull objects toward itself at the strength of the Earth. This means that if you went to the moon you would weigh less, even though your mass stays the same
Explanation:
I hope this helps :)
GIVING BRAINLIEST!!!!
What is a similarity between the temperate climate zone and polar climate zone?
A) Both of the climate zones have warm and hot weather and lots of precipitation.
B) In both polar and temperate zones, the temperature of the warmest month is about 18°C.
C) The temperature can get to 0°C in both temperate and polar climate zones.
D) The temperate and polar climate zones both usually have 150 cm of precipitation.
In both the polar and temperate zones, the temperature of the warmest month is about 18°C. So, the correct option is B.
What are Polar and Temperate zones?Temperate regions are defined as regions with mild temperatures that lie between the subtropical and polar regions where the two regions between the Tropic of Capricorn and the Antarctic Circle or the Tropic of Cancer and the Arctic Circle are called temperate regions.
The polar region is defined as the area around the North Pole or the South Pole, where the North Polar Region consists mainly of flotation and pack ice, 7–10 feet (2–3 m) thick which floats on the Arctic Ocean and is surrounded by land. In both zones, the temperature of the warmest month is about 18°C.
Therefore, the correct option is B.
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Two true-breeding stocks of pea plants are crossed. One parent has red, axial flowers and the other has white, terminal flowers; all of the first generation of the offspring have red, axial flowers. The genes for flower color and location assort independently. If 1,000 second generation offspring resulted from the cross, approximately how many of them would you expect to have red, terminal flowers
Answer: 750
Explanation:
Based off the first two sentences, we can conclude that red is the dominant allele and white is the recessive allele.
Let's say R = red and r = white.
The genoytypes of the parents are RR and rr. The genotype of the first generation are all Rr
The punnet square for the second generation is:
R r
R RR Rr
r Rr rr
We can see 3/4 crosses give us red. Now we can multiply 3/4 and 1000 to get 750.
According to paragraph 1, which of the following factors limits the abilities of populations within an ecosystem to survive?
Answer:
Availability of space, shelter, food, and water
According to paragraph 1, the factor that limits the abilities of populations within an ecosystem to survive is the availability of space, shelter, food, and water that is present in option C.
What are the ecosystem's limiting factors?Ecosystems are composed of living organisms and the nonliving elements with which they interact, including air, water, soil, and sunlight. Within an ecosystem, all organisms have certain requirements for survival, such as the need for space, shelter, food, and water. These resources are often limited within any given ecosystem, which means that populations within the ecosystem are limited in terms of their ability to survive and reproduce.
Hence, the factor that limits the abilities of populations within an ecosystem to survive is the availability of space, shelter, food, and water that are present in Option C.
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question is incomplete, complete question here
According to paragraph 1, which of the following factors limits the abilities of populations within an ecosystem to survive?
A)The frequency of reproduction of each species
B)The number of organisms becomes too large
C)Availability of , space, shelter, food, and water
D)Availability of a diversity of species
Why
laboratory rats kept and studied in the exclusion zone?
Please do all for 50 points,
please.
Jerome puts two magnetic vehicles very close to each other. what will happen next, and why?
Do two organisms that express the same trait have to
carry the same genetic information?
Answer:
Any organism that receives the same genetic information for a trait from each parent. Also, any organism that has either two dominant or two recessive genes dominant trait, therefore the trait will show in a hybrid.
A pluripotent stem cell can form only one type of cell. PLEASE HELP!! TRUE OR FALSE
Answer:
False
Explanation:
These embryonic stem cells are pluripotent. This means that they can turn into more than one type of cell.
This is a picture of a coordinate graph.
Which ordered pair describes a point that is located 4 units to the left of the origin and 6 units below the x-axis?
(4, −6)
(6, −4)
(−4, −6)
(−6, −4)
Answer:
This is not biology.
A trait that occurs in 900 individuals out of a total of 1,800 individuals occurs with a probability of
Answer: 25
Explanation: I hope this helps you out <3
A trait that occurs in 450 individuals out of a total of 1,800 individuals occurs with a probability of 25.
Radiometric dating allows us to determine...
a. Which rock layers are the oldest.
b. The relative ages of the layers of rocks and the fossils within
them.
c. The exact or absolute age of rock layers.
d. A and B are correct.
e. A and C are correct.
Answer:
a and c are the correct answer so option E. thank you .
Choose 1-3 activities that you perform regularly and explain the role(s) that each organ system plays in each activity, as well as explain how organ systems work together to perform the chosen activities.
Water birds cannot fly. Please select the best answer from the choices provided T F
What is the answer ?
Answer:
I would guess, it is C
Explanation:
Answer:
c
Explanation:
HELP PLEASE!!!
A. Describe the difference between gradualism and punctuated equilibrium.
B. Describe the conditions under which new species may arise.
C. Explain the difference between allopatric and sympatric speciation.
D. Describe the role of prezygotic and postzygotic barriers in the process of speciation.
A. Both theories describe the rates of speciation. For Gradualism, changes in species is slow and gradual, occurring in small periodic changes in the gene pool, whereas for Punctuated Equilibrium, evolution occurs in spurts of relatively rapid change with long periods of non-change.
B. New species arise through a process called speciation. In speciation, an ancestral species splits into two or more descendant species that are genetically different from one another and can no longer interbreed.
C. Allopatric speciation occurs when two species are living in separate environments and therefore there is no gene flow between the populations. ... Sympatric speciation occurs when two species are living in the same environment.
D. Reproductive isolation is a mechanism that keeps species from mating with others. Prezygotic isolation prevents the fertilization of eggs while postzygotic isolation prevents the formation of fertile offspring. ... Postzygotic mechanisms include hybrid inviability, hybrid sterility and hybrid "breakdown."