11) Which of the following actors does not contribute to muscle fatigue not c \"
ID: 3507225 • Letter: 1
Question
11) Which of the following actors does not contribute to muscle fatigue not c "mental" fatigue Lactic acid buildup Muscle nerve fiber exhaustion a. b. c. e. K rushing out of cel 12) Why do H and P, accumulate during exercise a. b. c. d. e. Lactic acid increases pH and hydrolysis of ATP Lactic acid increases pH and synthesis of ATP Lactic acid decreases pH and hydrolysis of ATP Lactic acid decreases pH and synthesis of ATP None of the above is correct 13) What is a characteristic of myoglobin a. Is a molecule that carries 02 b. Is a red pigment c. Is in highest abundance in slow fibers d. Is used for aerobic respiration e. All of these are true 14) Why is it that short and long sarcomeres develop less tension a. There is an optimal length for max tension b. Short sarcomeres have less "sliding space" c. Long sarcomeres have less crossbridges d. All of them e. Only b and c are correct 15) Are the types of muscle fibers in a single motor unit the same of different? a. Same b. Different 6) The activation of additional motor units to accomplish an increase in contractile strength in a muscle is known as a. Recruitment b. Spatial summation c. Temporal summation d. Fused tetanus e. Unfused tetanusExplanation / Answer
Answer 11. Option a
Lactic acid fatigue is quite common in us. It occurs in the case of anaerobic conditions.
Answer 12. Option d
Acid decreases the pH. Stopped ATP synthesis will increase the phosphate concentration.
Answer 13. Option e
Myoglobin is a tertiary structure globular protein.
Answer 14. Option d
Answer 15. Same
Answer 16. Option b
Stimulus from many nerves is taken and summated to bring a contraction of good strength.
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