Question

Which organelle is abundant in white fibres of muscles?

• A. Sarcoplasmic reticulum
• B. Nuclei
• C. Mitochondria
• D. Peroxisomes

Answer 1

Answer:

A. Sarcoplasmic reticulum

• Muscles contain red fibres and white fibres.

• The red fibres are rich in myoglobin, which is a red coloured oxygen storing protein, and mitochondria.

• The white fibres are rich in sarcoplasmic reticulum.