The binding of troponin on actin Filaments actually masks the …..
1. Active site for Tropomyosin
2. Active site for ATP
3. Active site for Myosin
4. Active site for troponin

Subtopic:  Excitation Contraction Coupling I |
 83%
From NCERT
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The binding of calcium to troponin actually indicates
1. Unmasking of Myosin binding site over meromyosin
2. Unmasking of Myosin binding site over actin
3. Unmasking of actin binding site over Myosin
4. Unmasking of actin binding site over tropoiosin

Subtopic:  Excitation Contraction Coupling I |
 79%
From NCERT
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During contraction of muscle fibres which of the following does not happen?
1. The length of A band gets reduced
2. The attached actin Filaments are pulled towards the centre of A band
3. The Z line attached to actin Filaments is pulled inward
4. Shortening of sarcomere

Subtopic:  Muscle Contraction: Other Considerations |
 92%
From NCERT
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Which of the following step during sliding Filament Theory is the last step before relaxing state?
1. ATP utilization
2. Release of ADP and inorganic phosphate
3. Cross bridge formation
4. Binding of calcium with troponin

Subtopic:  Sliding Filament Theory |
 68%
From NCERT
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Which of the following property cannot be attributed with white fibres?
1. Less mitochondria
2. Anerobic process for energy
3. Sarcoplasmic reticulum is high
4. More quantity of myoglobin

Subtopic:  Muscle Contraction: Other Considerations |
 91%
From NCERT
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1. Which of the following statements is wrong?
1. Bones and cartilages are specialised connective tissues
2. Skeletal system consists of a framework of more than hundred bones and cartilages
3. Bones have hard matrix due to calcium salt deposition
4. Cartilages have pliable matrix due to chondroitin salts

Subtopic:  Human Skeleton: Introduction, Function, Parts |
 79%
From NCERT
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Which of the following is wrong with respect to Human skeleton?
1.Humans- 206 bones
2 Axial skeleton- 80 bones
3 Skull-24 bones
4 Ear ossicles- 6

Subtopic:  Axial Skeleton: I |
 88%
From NCERT
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The human skull does not include which of the following bones?
1. Ethmoid bone
2. Sphenoid bone
3. Lacrimal bone
4. Scapular bone

Subtopic:  Axial Skeleton: I |
 82%
From NCERT
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Axial skeleton does not include
1. Skull
2. Vertebral Coulmn
3. Sternum
4. Radial bones

Subtopic:  Axial Skeleton |
 93%
From NCERT
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How many facial bones are included in skull?
1. 14
2. 8
3. 22
4. 15

Subtopic:  Axial Skeleton: I |
 89%
From NCERT
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