Biology, 24.06.2019 09:00, kristinashau

What role does cellular respiration play in the carbon cycle? a. it removes co2 from the atmosphere during glycolysis. b. it removes co2 from the atmosphere during the citric acid cycle. c. it releases co2 to the atmosphere during acetyl coa formation. d. it releases co2 to the atmosphere during electron transport.

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Cellular respiration is the process by which organic sugars are broken down to produce energy. It plays a vital role in the carbon cycle because it releases carbon dioxide into the atmosphere. This means that cellular respiration can be thought of as the opposite of carbon fixation in the carbon cycle.

answered: Emptypockets451

The correct answer is option C. it releases the CO2 to the atmosphere during acetyl CoA formation.

Explanation:

Acetyl CoA formation takes place in the oxidative decarboxylation of pyruvate decarboxylation or link reaction which is an intermediate stage of cellular respiration that oxidizes pyruvate molecule to the acetyl CoA which also releases carbon dioxide in this process to the atmosphere.

The formation of acetyl CoA releases the carbon dioxide to the atmosphere during link reaction, however, the release of carbon dioxide also takes place during Kreb's cycle.

Thus, the correct answer is option C. it releases the CO2 to the atmosphere during acetyl CoA formation.

answered: Guest

the african cheetah.

this species has a relatively low level of genetic

variation because the population was reduced to a small size approxi-

mately 10,000 to 12,000 years ago.

chapter outline

24.1

genes in populations and the hardy-

weinberg equation

24.2

factors that change allele and genotype

frequencies in populations

24.3 sources of new genetic variation

population genetics

until now, we have primarily focused our attention on genes

within individuals and their related family members. in this

chapter and chapters 25 and 26 , we turn to the study of genes in

a population or species. the field of

population genetics

is con-

cerned with changes in genetic variation within a group of indi-

viduals over time. population geneticists want to know the extent

of genetic variation within populations, why it exists, and how it

changes over the course of many generations. the field of popu-

lation genetics emerged as a branch of genetics in the 1920s and

1930s. its mathematical foundations were developed by theoreti-

cians who extended the principles of gregor mendel and charles

darwin by deriving formulas to explain the occurrence of geno-

types within populations. these foundations can be largely attrib-

uted to three scientists: sir ronald fisher, sewall wright, and j. b. s.

haldane. as we will see, support for their mathematical theories

was provided by several researchers who analyzed the genetic com-

position of natural and experimental populations. more recently,

population geneticists have used techniques to probe genetic

variation at the molecular level. in addition, staggering advances

in computer technology have aided population geneticists in the

analysis of their genetic theories and data. in this chapter, we will

explore the genetic variation that occurs in populations and con-

sider the reasons why the genetic composition of populations may

change over the course of several generations

answered: Guest

Atp is is our little "pocket" of energy. of course, if you have too little, then it means you have too little energy, and you'll pass out. the way to not have enough, is to have no energy sources (glucose, fats, proteins). you can't have too many atp molecules. cycles like the krebs cycle produce it, but if you have too much of any substrate (or too little for that matter), the cycle stops and atp is no longer made (it stops until substrate levels are such that the process can go on). in any case, this is unlikely since atp is constantly hydrolyzed and remade, even while you're asleep. you won't have too much. if you have zero, you are dead or dying.

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What role does cellular respiration play in the carbon cycle? a. it removes co2 from the atmosphere...