A) They have plenty of mitochondria.
B) They have high content of myoglobin.
C) They have high amount of sarcoplasmic reticulum.
D) They are called aerobic muscles.
Correct Answer: C
Solution :
[c] Red muscle fibres are one of the two main types of skeletal muscle which contains abundant mitochondria and myoglobin. Red muscle fibres contract and fatigue more slowly than white fibres and it generate ATP by aerobic catabolism of glucose and fats utilising myoglobin-bound\[{{O}_{2}}\]. Sarcoplasmic reticulum is a system of membrane-bound tubules that surrounds muscle fibrils, releasing calcium ions during contraction and absorbing them during relaxation.
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