Question

Select the option which gives the correct information about the white muscle fiber.

• A. The amount of endoplasmic reticulum is high and the number of mitochondria is low
• B. The amount of endoplasmic reticulum is high and the number of mitochondria is also high
• C. The amount of endoplasmic reticulum is low and the number of mitochondria is high
• D. The amount of endoplasmic reticulum is low and the number of mitochondria is low

Answer 1

Answer: (A)

White muscle fibres:
$1.$ These have a very less quantity of myoglobin, giving them whitish (or pale) appearance.
$2.$ The number of mitochondria are very few.
$3.$ These muscles are also known as anaerobic muscles as these depend on anaerobic process for energy.
$4.$ The amount of sarcoplasmic reticulum is high.