Question:
Contractile protein of skeletal muscle is
Contractile protein of skeletal muscle is
Show Hint
Remember to distinguish between contractile proteins (actin and myosin) and regulatory proteins (troponin and tropomyosin). This distinction is a frequent source of exam questions.
Updated On: Jul 8, 2026
- Actine
- Myosin
- Actin and myosin
- Troponin
Show Solution
Verified By Collegedunia
The Correct Option is C
Solution and Explanation
Step 1: Understanding the Concept:
Skeletal muscle contraction occurs through the sliding filament mechanism, which relies on the interaction of specific proteins within the sarcomere.
Step 3: Detailed Explanation:
Skeletal muscle proteins are structurally and functionally categorized as contractile, regulatory, or structural:
• Contractile Proteins: Actin (the primary component of thin filaments) and Myosin (the primary component of thick filaments) are the direct contractile proteins. Their interaction and cross-bridge formation generate the mechanical force required for muscle shortening.
• Regulatory Proteins: Troponin and Tropomyosin control whether or not myosin can bind to actin, depending on intracellular calcium ion levels.
Because both actin and myosin are essential and work together to cause contraction, the combination of "Actin and myosin" represents the most complete answer.
Step 4: Final Answer
The contractile proteins of skeletal muscle are actin and myosin.
Skeletal muscle contraction occurs through the sliding filament mechanism, which relies on the interaction of specific proteins within the sarcomere.
Step 3: Detailed Explanation:
Skeletal muscle proteins are structurally and functionally categorized as contractile, regulatory, or structural:
• Contractile Proteins: Actin (the primary component of thin filaments) and Myosin (the primary component of thick filaments) are the direct contractile proteins. Their interaction and cross-bridge formation generate the mechanical force required for muscle shortening.
• Regulatory Proteins: Troponin and Tropomyosin control whether or not myosin can bind to actin, depending on intracellular calcium ion levels.
Because both actin and myosin are essential and work together to cause contraction, the combination of "Actin and myosin" represents the most complete answer.
Step 4: Final Answer
The contractile proteins of skeletal muscle are actin and myosin.
Was this answer helpful?
0
0
Top ICAR AIEEA Animal Science Questions
- Which of the following antiviral drug is available for treatment of lumpy skin disease in cow?
- How do you arrange the correct sequence of the following procedural steps for early pregnancy diagnosis in cow?
(A) Do the insemination in adult dairy cows.
(B) Administer a small dose (2.5 mg or 0.5 ml) of Dinoprost (Lutalyse) intravenously through the ear vein.
(C) Observe critically the teat of the animal for alveolar milk to start flowing about one minute later.
(D) After 18 to 22 days and 3 hours prior to the evening milking, place the teat cannula in the left fore-teat and leave it for milk flow from the teat cistern till it ceases.
Choose the correct answer from the options given below which describe the correct sequential steps for early pregnancy diagnosis in cow. - Match List-I with List-II.Choose the correct answer from the options given below.
List-I (Toxic Element) List-II (Effect of toxicity on Animal) (A) Fluoride (I) Abdominal pain and diarrhea can be common clinical signs in animals exposed. (B) Arsenic (II) Short-term exposure may include nausea, vomiting, diarrhea, increase in blood pressure or heart rate, skin rashes and eye irritation. (C) Lead (III) Cattle can show clinical signs of depression, weakness and ataxia with postmortem findings of gastroenteritis and degenerative changes in the renal tubular epithelium. (D) Mercury (IV) Abdominal pain or colic, vomiting, a staggering gait and weakness, incoordination, rapid weak pulse and shock, diarrhea, followed by collapse and death. - Polygene term was given by one of the following?
- According to Hardy Weinberg Law, genotype frequencies in the progeny depend only on the
View More Questions
Top ICAR AIEEA Reproductive Health Questions
- Thromboxane A2 produced from
- Dissolution of clot is called
- The muscle of esophagus squeeze food downward using process of
- Interstitial cells of cajal called
- Process of release gas from digestive tract through mouth is
View More Questions
Top ICAR AIEEA Questions
- Which of the following statements is false?
- Which of the following is an example of an inventory?
- According to Adam Smith, productivity gains could be brought about through .
- The supply curve for an artificially scarce good is .
- Which of the following would not be considered an opportunity cost of paid employment?
View More Questions