Question

Physiology

-Discuss the three metabolic pathways that supply ATP for muscle contraction

-Explain how navigational abilities promote reproductive success. Provide an example.

Answer 1

Ans:-

a) 3 source of energy:+

1) Phosphocreatinine system:-

this system provide immediate energy for 8 to 10 seconds so it is generally used in race like hundred metre sprint this high energy Bond of creatinine phosphate release 10300 calorie per mole energy it is very high when compared to 1 ATP that is 7300 calorie per mole.

2) glycolysis lactic acid system

glycogen Store of muscle is breakdown two glucose which provide ATP by the process of glycolysis which is anaerobic metabolism this an aerobic metabolism lead to formation of lactic acid which causes muscle pain and fatigue so this system is used for 1.3 -1.6 minutes.

3) Aerobic system:-

in this process glucose and fatty acid oxidized in mitochondria to form ATP it is maintained used during prolonged activity like Marathon running and endurance exercises because it can provide energy at a constant rate for long time.

AnsB)

Navigational activity promote reproductive success because many animals migrate according to season two different places for meeting and laying eggs. For which they need to travel to different places.

For eg :- salmon fish during spring season migrate from sea to river upside to lay eggs and to fertilize egg... For which they need navigation skills.