Muscle Cells Quiz

What is the structure of striated muscle cells?

• Muscle cells are composed of mitochondria, which generate energy for muscle contraction.

• Muscle cells are composed of connective tissue, which provides support and structure.

• Muscle cells are composed of blood vessels, which supply nutrients and oxygen to the muscles.

• Muscle cells are composed of myofibrils, which are made up of sarcomeres containing thick and thin filaments.

Name the three types of muscle cells.

• skeletal muscle cells, cardiac muscle cells, and smooth muscle cells

• skeletal muscle cells, involuntary muscle cells, and smooth muscle cells

• voluntary muscle cells, involuntary muscle cells, and cardiac muscle cells

• striated muscle cells, cardiac muscle cells, and smooth muscle cells

Which type of muscle cells are found in the heart?

• cardiac muscle cells

• nervous muscle cells

• smooth muscle cells

• skeletal muscle cells

Which type of muscle cells are under voluntary control?

• cardiac muscle cells

• skeletal muscle cells

• smooth muscle cells

• nervous muscle cells

What is the process called when a muscle cell contracts?

• muscle contraction

• muscle expansion

• muscle relaxation

• muscle elongation

What are actin and myosin?

• Actin and myosin are types of carbohydrates.

• Actin and myosin are found in the brain.

• Actin and myosin are proteins involved in muscle contraction.

• Actin and myosin are involved in digestion.

Which protein is thin and forms the filaments in muscle cells?

• myosin

• keratin

• collagen

• actin

Which protein is thick and forms the filaments in muscle cells?

• myosin

• keratin

• troponin

• actin

What is the role of actin and myosin in muscle cell contraction?

• Actin and myosin have no role in muscle cell contraction.

• Actin and myosin inhibit muscle cell contraction.

• Actin and myosin are only present in non-contractile cells.

• Actin and myosin generate force and cause muscle cell contraction.

True or False: Muscle cells can only contract and cannot relax.

• True

• Muscle cells can relax but not contract

• Muscle cells can contract and relax simultaneously

• False