Question

Consider the following statements each with one or two blanks.

(i) Repeated activation of the muscles can lead to the accumulation of $\underline{(1)}$ due to anaerobic breakdown of glycogen in them, causing fatigue.

(ii) The globular head of meromyosin is an active ATPase enzyme and has binding sites for $\underline{(2)}$and active sites for $\underline{(3)}$

(iii) This central part of thick filament, not overlapped by thin filaments is called the $\underline{(4)}$

Which one of the following option correctly fills the concerned blanks?

• A. (1) – glucose, (4) – A band
• B. (1) – pyruvic acid, (2) – troponin, (3)- myosin
• C. (2) – ATP, (3) – actin, (4) – H zone
• D. (1) – lactic acid , (4) –I band

Answer 1

Answer: (C)

(2) – ATP, (3) – actin, (4) – H zone