Biology · General Awareness

Muscle Biology

836 Questions

Muscle biology covers the structures, functions, and contraction mechanisms of skeletal, cardiac, and smooth muscles. Test questions target filaments, stimuli, and specific muscle roles. A clear understanding helps secure marks in biology sections.

Skeletal muscle controlCardiac muscle propertiesMuscle contraction mechanismActin and myosin filamentsMuscle functions

Muscle Biology Questions

Multiple choice

Why does one get muscle cramps after excessive running or exercising?

  1. Because the muscle cells respire aerobically.

  2. Because of anaerobic respiration which takes place in the muscles.

  3. Because we breath more hard to fulfill the supply of oxygen.

  4. None of these
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Yes, anaerobic respiration takes place in our muscles to fulfill the supply of oxygen. Lactic acid is released resulting in its accumulation which causes cramps. Hot water bath/massage helps in relieving pain.

Multiple choice

Why does heavy exercise cause muscle cramps?

  1. Due to formation of lactic acid.

  2. Due to evolution of high concentration of CO2.

  3. Due to formation of ethanol.

  4. Due to complete absence of oxygen in muscles.
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Due to formation of lactic acid, muscle cramps are caused after heavy exercise.

Multiple choice

Collagen is the major insoluble fibrous protein in the extracellular matrix. It is an example of which type of tissue?

  1. Areolar tissue

  2. Adipose tissue

  3. Dense connective tissue

  4. Muscle tissues

  5. Neural tissues
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Fibres and fibroblasts are packed compactly in dense connective tissue. Tendons are dense regular tissues that attach skeletal muscle to bones and ligaments attach bone to another bone. Collagen is the dense irregular connective tissue present in the skin.

Multiple choice

_____ is the total number of muscles in the human body?

  1. 203

  2. 308

  3. 200

  4. 400

  5. None of these
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The human body contains over 600 skeletal muscles. Since 400 is the closest option provided and the others are significantly lower, it is the intended answer in this context, though the exact number is higher.

Multiple choice

Directions: In the following question, there is a statement followed by two conclusions. Statement: Protinex is beneficial for a muscular body. Conclusion: I. All athletes take Protinex. II. We should take Protinex for muscular body.

  1. If only conclusion I follows.

  2. If only conclusion II follows.

  3. If conclusions I and II both follow.

  4. If neither I nor II follows.
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The second conclusion is what is hinted at by the statement. Hence, Option 2 is correct.