Free Muscles MCQs with Answers
50 Muscles MCQs from Biology, each with the correct answer and a written explanation of why it is correct. Free and unlimited, with no account needed.
Muscles covers skeletal, smooth and cardiac muscle, their microscopic structure and the roles of tendons, myofibrils, actin and myosin. It explains the sliding filament mechanism, sarcomere shortening, neuromuscular transmission and calcium regulation, while distinguishing voluntary skeletal movement from involuntary contraction in smooth and cardiac muscle.
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50 questions · page 3 of 3
- A. Tendon
- B. Ligament
- C. Reticular Tissue
- D. Cartilage
Explanation: Option: A Tendons attach muscles to bones and are non-elastic. PTB XII Chap # 16 page # 42 Option B : Ligaments attach bone to bone and…
Correct answer: Tendon- A. myofibril
- B. Z-line
- C. M-line
- D. Fibroin
Explanation: Correct option:A(Definition) The basic unit of muscle fiber is the myofibril.
Correct answer: myofibril- A. Sarcomere
- B. Sarcolemma
- C. Twitch fibre
- D. Capsule
Explanation: Each muscle fiber is surrounded by the sarcolemma, which also contains the cytoplasm of the cell.
Correct answer: Sarcolemma- A. ATP
- B. Creatine-PO4
- C. Myoglobin
- D. Creatinine-P04
Explanation: Creatine-PO4, also known as phosphocreatine, is a muscle component that acts as a store for energy.
Correct answer: Creatine-PO4- A. Multiple nuclei
- B. Multiple mitochondria
- C. Large amount of myoglobin
- D. Large amount of hemoglobin
Explanation: Skeletal muscle fibers in humans do not contain a large amount of hemoglobin.
Correct answer: Large amount of hemoglobin- A. Sarcoplasm
- B. Sarcolemma
- C. Sarcomere
- D. Myofibrils
Explanation: The sarcolemma is the specialized cell membrane of muscle cells, also known as muscle fibers.
Correct answer: Sarcolemma- A. Voluntary
- B. Branched
- C. Uninucleate
- D. Striated appearance
Explanation: Muscles that are uni-nucleate, meaning they contain a single nucleus per cell, primarily include cardiac muscle and smooth muscle.
Correct answer: Uninucleate- A. Striped
- B. Unstriped
- C. Cardiac
- D. Triceps
Explanation: The correct answer is 'Cardiac' because cardiac muscles are uniquely adapted to contract continuously throughout a person's life without…
Correct answer: Cardiac- A. Tendon
- B. Ligaments
- C. Elastic fibers
- D. Areolar
Explanation: The correct answer is 'Tendon'. Tendons are strong bands of connective tissue that connect muscles, like the bicep, to bones such as the…
Correct answer: Tendon- A. Bone
- B. Connective tissue
- C. Muscles
- D. Cartilage
Explanation: Myoglobin is a protein found in muscle fibers, responsible for storing oxygen and facilitating its availability during muscle contraction.
Correct answer: Muscles