Unknown1232003
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Can someone please help me with this.. i dont get the question and how to answer it.
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BDavies1
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Ci There is a loose relationship between body mass and life span- the greater the body mass the greater the lifespan
ii. Naked mole rats seem to have a longer lifespan than other animals of the same size ( note- Q does not ask you to explain why)

di. Mole rats can survive for long periods of time without oxygen by using anaerobic resp, to meet their demands for ATP

Most animals can't do this as the product of anaerobic resp (lactate) inhibits the enzyme responsible for letting Glucose enter into the glycolytic pathway.

Glycolysis is not stopped by high levels of lactate in mole rats as they don't use Glucose to feed into glycolysis- they use fructose instead (another sugar). The enzyme which allows Fructose to feed into glycolysis is not inhibited by lactate.

dii A lot of animals that can survive for extended periods without oxygen do this partly by lowering their metabolic rate thereby decreasing the need for ATP. Mole rats probably do this too.
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Unknown1232003
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(Original post by BDavies1)
Ci There is a loose relationship between body mass and life span- the greater the body mass the greater the lifespan
ii. Naked mole rats seem to have a longer lifespan than other animals of the same size ( note- Q does not ask you to explain why)

di. Mole rats can survive for long periods of time without oxygen by using anaerobic resp, to meet their demands for ATP

Most animals can't do this as the product of anaerobic resp (lactate) inhibits the enzyme responsible for letting Glucose enter into the glycolytic pathway.

Glycolysis is not stopped by high levels of lactate in mole rats as they don't use Glucose to feed into glycolysis- they use fructose instead (another sugar). The enzyme which allows Fructose to feed into glycolysis is not inhibited by lactate.

dii A lot of animals that can survive for extended periods without oxygen do this partly by lowering their metabolic rate thereby decreasing the need for ATP. Mole rats probably do this too.
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