This quiz works best with JavaScript enabled. Home > Class 11 > Class 11 Biology Chapter 20 Locomotion And Movement – Quiz 8 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 11 Biology Chapter 20 Locomotion And Movement Quiz 8 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. S 1-Each vertebra has a neural canal through which the spinal cord passes.S 2-Actin and myosin are polymerised proteins with contractility. A) Both the statement are correct. B) Both the statement are incorrect. C) Only S 1 is correct. D) Only S 2 is correct. Show Answer Correct Answer: A) Both the statement are correct. 2. A-the portion of myofibril between two successive Z lines is considered as the functional unit of contraction called sarcomereR-during contraction, I bands get reduced and A bands retain the length, thereby causing shortening of sarcomere A) A&R both true, R is correct explanation of A. B) A&R both true, but R is not correct explanation of A. C) A is true but R is false. D) Both A&R are false. Show Answer Correct Answer: A) A&R both true, R is correct explanation of A. 3. Cyclosis a characteristic of plant cell. this movement is due to A) Sliding microtubule. B) Cytoplasmic streaming. C) Beating of cilia. D) Podia formation. Show Answer Correct Answer: B) Cytoplasmic streaming. 4. Common to kidney and skeleton in mammals is A) Pelvis. B) Radius. C) Medulla. D) Cortex. Show Answer Correct Answer: A) Pelvis. 5. Where does the clavicle articulate? A) Glenoid Cavity. B) Styloid Process. C) Coracoid Process. D) Acromion Process. Show Answer Correct Answer: D) Acromion Process. 6. Which muscle is not under direct control of nervous system? A) Skeletal (Striated muscles). B) Smooth (Non-striated muscles). C) Cardiac muscles. D) All of these. Show Answer Correct Answer: C) Cardiac muscles. 7. Contraction of muscles require enough blood supply. Why? A) To provide more ATP. B) To increase breathing rate. C) To increase heart beat. D) To move the hands. Show Answer Correct Answer: A) To provide more ATP. 8. Hyoid / Tongue bone is- A) T-shaped. B) J-shaped. C) U-shaped. D) L-shaped. Show Answer Correct Answer: C) U-shaped. 9. Functional unit of Contractile System of a striated muscles called: A) Myofibril. B) Sarcomere. C) Sarcosome. D) Z-line. Show Answer Correct Answer: B) Sarcomere. 10. A neural signal reaching the neuromuscular junction releases a neurotransmitter which generates action potential in A) Sarcolemma. B) Sarcoplasmic reticulum. C) Sarcoplasm. D) Cross arm. Show Answer Correct Answer: A) Sarcolemma. 11. Which of the following cell show amoeboid movement? A) Erythrocytes. B) Leucocytes. C) Thrombocytes. D) Lymphocytes. Show Answer Correct Answer: B) Leucocytes. 12. Which of the following situations make the usage of visceral muscles? A) Locomotory actions. B) Changes of body postures. C) Transportation of food through the digestive tract. D) Presence in the heart. Show Answer Correct Answer: C) Transportation of food through the digestive tract. 13. During muscle contraction A) GTP is broken down. B) ATP is formed. C) ATP is broken down. D) None of these. Show Answer Correct Answer: C) ATP is broken down. 14. Actin protein occurs in which of the two forms? A) Polymeric:F-actin and monomeric-G actin. B) Monomeric:F actin and Polymeric:G actin. C) The tail and a head. D) F-actin and G-actin, both globular. Show Answer Correct Answer: A) Polymeric:F-actin and monomeric-G actin. 15. When the pectoralis major contracts and pectoralis minor relax, the wings are A) Pulled down. B) Pulled up. C) All the above. D) None of the above. Show Answer Correct Answer: A) Pulled down. 16. How many of the following features belong to Skeletal muscle?1) Striated appearance2) Voluntary nature3) Not under the control of CNS4) Primarily involved in locomotion action A) 1. B) 2. C) 3. D) 4. Show Answer Correct Answer: C) 3. 17. The ion that must be present in adequate amount for binding of cross bridge with actin is A) Ca$^{+2}$. B) Na$^{+ }$. C) K$^{+}$. D) Mg$^{+2 }$. Show Answer Correct Answer: A) Ca$^{+2}$. 18. Lower jaw is amde up of A) Mandible. B) Vomer. C) Maxilla. D) Palatine. Show Answer Correct Answer: A) Mandible. 19. Which is the smallest one?(a) (b) (c) (d) A) Muscle fibre. B) Myofibril. C) Actin. D) Sarcomere. Show Answer Correct Answer: C) Actin. 20. The muscle fatigue occurs due to the accumulation of A) Lactic acid. B) Glycogen. C) Creatine phosphate. D) Carbon dioxide. Show Answer Correct Answer: A) Lactic acid. 21. Glenoid cavity articulates A) Clavicle with acromion. B) Scapula with acromion. C) Clavicle with scapula. D) Humerus with scapula. Show Answer Correct Answer: D) Humerus with scapula. 22. Which of the following joint would allow no movement? A) Synovial joint. B) Fibrous joint. C) Cartilaginous Joint. D) Ball & Socket Joint. Show Answer Correct Answer: B) Fibrous joint. 23. Sonia Gandhi has how many ear ossicle- A) 3. B) 6. C) 9. D) None. Show Answer Correct Answer: A) 3. 24. Which elements are involved in muscle contraction: A) Ca2+, Mg2+. B) Ca2+, Na+. C) Na+, K+. D) Mg2+, K+. Show Answer Correct Answer: A) Ca2+, Mg2+. 25. The source of Ca+2 for the muscle is- A) T-tubule. B) Sarcosome. C) Sarcolemma. D) Sarcoplasmic reticulum. Show Answer Correct Answer: D) Sarcoplasmic reticulum. ← PreviousNext →Related QuizzesClass 11 Biology Chapter 20 Locomotion And Movement Quiz 1Class 11 Biology Chapter 20 Locomotion And Movement Quiz 2Class 11 Biology Chapter 20 Locomotion And Movement Quiz 3Class 11 Biology Chapter 20 Locomotion And Movement Quiz 4Class 11 Biology Chapter 20 Locomotion And Movement Quiz 5Class 11 Biology Chapter 20 Locomotion And Movement Quiz 6Class 11 Biology Chapter 20 Locomotion And Movement Quiz 7Class 11 Biology Chapter 20 Locomotion And Movement Quiz 9Class 11 Biology Chapter 20 Locomotion And Movement Quiz 10Class 11 Biology Chapter 20 Locomotion And Movement Quiz 11 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books