Class 11 | Biology | Chapter 20 | Locomotion and Movement
Question: From NCERT NEET Derived PYQ
The human skull has 22 bones with ..................cranial bones and ............................ facial bones
1. 10,12
2. 14,8
3. 12,10
4. 8,14
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Which of the following has ATPase activity?
1. Actin 2. Tropomyosin
3. Head of myosin 4. Troponin
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3
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The ATPase activity of the myosin head is dependent on:
1. Magnesium ions
2. Manganese ions
3. Calcium ions
4. Ferric ions
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Skeletal muscle bundles [fascicles] are held together by a common connective tissue layer called:
1. Perimysium
2. Endomysium
3. Fascia
4. Aponeurosis
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During muscle contraction, the length of all the following gets reduced except:
1. H-Zone
2. A-Band
3. I-Band
4. Sacromere
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What is true about the white muscle fibers?
1. Myoglobin content is high
2. They have a large number of mitochondria
3. They depend on anaerobic process for energy
4. They are adapted for slow sustained activities
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The human ribs are termed as bicephalic because:
1. They have two articulations surfaces on their ventral end
2. They have two articulations surfaces on their dorsal end
3. They have two articulations surfaces on their ventral end and two on dorsal end
4. They have two articulations surfaces on their ventral end and one on dorsal end
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2
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The upper ends of the forearm bones articulate with each other in a:
1. pivot joint
2. ellipsoid joint
3. saddle joint
4. hinge joint
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1
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Which of the following is a hinge point?
1. At the base of the first metacarpal
2. Intervertebral disc
3. Interphalageal
4. Between carpal bone
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3
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Consider the following statements:
I. Proximal radioulnar joint is a type of ellipsoidal joint.
II. The first carpo-metacarpal joint is a saddle joint.
III. Gleno-humeral joint is a ball and socket joint.
Which of the above statements are true
1. I and II only
2. I and III only
3. II and III only
4. I, II and III
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3
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Match each item in Column I with one item in Column II and chose your answer from the codes given below:
Column I | Column II |
I. Acetabulum II. Glenoid Cavity III. Vertebrosternal ribs IV. Vertebrochondral ribs | 1. Pectoral girdie 2. Pelvic girdie 3. 7 pairs 4. 3 pairs |
Codes
I II III IV
(1) 1 2 3 4
(2) 2 1 4 3
(3) 2 1 3 4
(4) 1 2 4 3
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Match each item in Column I with one item in Column II and choose your answer from the codes given below :
| Column I |
| Column II |
I. | Influx of sodium | 1. | Original establishment of RMP |
II. | Efflux of potassium | 2. | Repolarization |
III. | Na+/K+ pump | 3. | Depolarization |
IV. | Ca++ | 4. | Plateau in cardiac muscles |
Codes :
| I | II | III | IV |
1. | 3 | 2 | 4 | 1 |
2. | 2 | 1 | 4 | 3 |
3. | 2 | 1 | 3 | 4 |
4. | 3 | 2 | 1 | 4 |
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