Grade 11 Biology: Muscle System Worksheet
This worksheet covers the structure, function, and types of muscles in the human body, including muscle contraction and common muscle disorders, suitable for Grade 11 Biology students.
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Grade 11 Biology: Muscle System Worksheet
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Read each question carefully and provide your answer in the space provided. For multiple-choice questions, circle the correct option.
1. Which type of muscle tissue is responsible for voluntary movements?
Cardiac muscle
Smooth muscle
Skeletal muscle
All of the above
2. Which protein filament is primarily responsible for muscle contraction?
Collagen
Elastin
Myosin
Keratin
3. The functional unit of a muscle fiber is called a .
4. is the neurotransmitter responsible for initiating muscle contraction at the neuromuscular junction.
5. Cardiac muscle is found in the walls of the heart and is under voluntary control.
True
False
6. The sliding filament theory describes how actin and myosin filaments slide past each other during muscle contraction.
True
False
7. Briefly describe the three main types of muscle tissue found in the human body.
8. Explain the role of ATP in muscle contraction.
Match each term on the left with its definition on the right.
9. Sarcolemma
a. Connective tissue surrounding a muscle fiber
10. Myofibril
b. Cell membrane of a muscle fiber
11. Endomysium
c. Contractile unit within a muscle fiber