Question

3.
A cheetah, on seeing a prey, moves towards him at a very high speed.
What causes the movement of his muscles? How does the chemistry of
cellular components of muscles change during this event?​

Answer 1

When cheetah will see his prey then the sensory neuron will work and respond to external stimuli and then message will be transfered to relay neuron and then to motor neuron that is present at the end of muscle cells that will initiate the movement of muscles in cheetah ...and now since cheetah runs at very high speed it has to stop after some time in order to maintain homeostasis in cellular respiration ..earlier there was aerobic respiration in his cells later on when he was running after the prey at very high speed then due to that vigorous muscular work accumulation of lactic acid would occur that is lacteal fermentation will take place leading to formation of lactic acid and energy released in form of 2ATP

Explanation:

Answer 2

The contractile proteins cause the movement of the cheetah's muscles.

The chemistry of cellular components of muscles changes followingly:

• As soon as the cheetah sees its prey, the brain processes it and sends impulses to the muscles.
• The contractile proteins will begin to act.
• It will begin to expand(unwind) and contract(constrict) the muscles enabling it for activity.
• It will facilitate the change in cell arrangement and shape and readies it for movement.
• Along with it, the adrenal gland releases adrenaline hormone, which will influence the flight or fight mechanism thus expanding the bloodstream in the muscle to facilitate more activity.

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