Question

It is necessary to separate oxygenated blood from the deoxygenated blood in mammals:

• A. To maintain the body temperature
• B. To provide more oxygen to cells
• C. Both A and B
• D. To maintain body balance

Answer 1

The correct option is C Both A and B

• In birds and mammals, it is essential to keep the oxygenated blood separated from the deoxygenated blood.
• Birds and mammals are warm-blooded animals. Their energy requirement is high as they need the energy to maintain constant body temperature.
• By keeping them separate, only oxygenated blood is sent out to the body's tissues for far more efficient diffusion into the cells of the body, giving them more 'fuel' to run cellular respiration in the mitochondria, to make ATP molecules run the reactions that allow them to maintain body temperature in addition to running all of their metabolic reactions of the body.
• If they were not separated, it would probably take much longer to perform simple activities and metabolism would be reduced as a consequence.
• So, the correct answer is option C.