339977
With which state of a living muscle are the following events associated? i. \(\mathrm{Ca}^{++}\)released by sarcoplasmic reticulum ii. Actin forms complex with myosin iii. ATPase is activated iv. troponin binds \(\mathrm{Ca}^{++}\)
1 Relaxed state
2 Muscle at the end of contraction
3 Muscle in tetanus
4 Muscle at the beginning of contraction
Explanation:
Given events occur when muscle is at the beginning of contraction.
BIOXI20: LOCOMOTION AND MOVEMENT
339978
Identify the labeled parts from A, B, C from the diagram of myosin monomer
1 A-Head B-Cross arm C-ATP binding site
2 A-Head B-Cross arm C-GTP binding site
3 A-Cross B-Head arm C-ATP binding site
4 A-Head B-Cross arm C-\({\rm{C}}{{\rm{a}}^{{\rm{2 + }}}}\) binding site
Explanation:
The labeled parts from A,B,C from the diagram of myosin monomer are head, cross arm and ATP binding site respectively.
BIOXI20: LOCOMOTION AND MOVEMENT
339980
Myoglobin occurs in
1 Red muscle fibre
2 White fibres
3 Cardiac muscle fibres
4 Both (1) and (2)
Explanation:
Red muscles are thin muscle fibres which are dark red in colour due to presence of large amount of myoglobin which is a red haemoprotein. Myoglobin stores oxygen as oxymyoglobin in red muscle fibres, it releases oxygen for utilisation during muscle contraction.
BIOXI20: LOCOMOTION AND MOVEMENT
339981
Statement A : Muscle contraction does not need ATP. Statement B : Muscle fatigue occurs due to pyruvic acid formation.
1 Statement A is correct but Statement B is incorrect.
2 Statement A is incorrect but Statement B is correct.
3 Both statements are correct.
4 Both Statements are incorrect.
Explanation:
Muscle contraction needs ATP. Muscle fatigue occurs due to formation of lactic acid.
339977
With which state of a living muscle are the following events associated? i. \(\mathrm{Ca}^{++}\)released by sarcoplasmic reticulum ii. Actin forms complex with myosin iii. ATPase is activated iv. troponin binds \(\mathrm{Ca}^{++}\)
1 Relaxed state
2 Muscle at the end of contraction
3 Muscle in tetanus
4 Muscle at the beginning of contraction
Explanation:
Given events occur when muscle is at the beginning of contraction.
BIOXI20: LOCOMOTION AND MOVEMENT
339978
Identify the labeled parts from A, B, C from the diagram of myosin monomer
1 A-Head B-Cross arm C-ATP binding site
2 A-Head B-Cross arm C-GTP binding site
3 A-Cross B-Head arm C-ATP binding site
4 A-Head B-Cross arm C-\({\rm{C}}{{\rm{a}}^{{\rm{2 + }}}}\) binding site
Explanation:
The labeled parts from A,B,C from the diagram of myosin monomer are head, cross arm and ATP binding site respectively.
BIOXI20: LOCOMOTION AND MOVEMENT
339980
Myoglobin occurs in
1 Red muscle fibre
2 White fibres
3 Cardiac muscle fibres
4 Both (1) and (2)
Explanation:
Red muscles are thin muscle fibres which are dark red in colour due to presence of large amount of myoglobin which is a red haemoprotein. Myoglobin stores oxygen as oxymyoglobin in red muscle fibres, it releases oxygen for utilisation during muscle contraction.
BIOXI20: LOCOMOTION AND MOVEMENT
339981
Statement A : Muscle contraction does not need ATP. Statement B : Muscle fatigue occurs due to pyruvic acid formation.
1 Statement A is correct but Statement B is incorrect.
2 Statement A is incorrect but Statement B is correct.
3 Both statements are correct.
4 Both Statements are incorrect.
Explanation:
Muscle contraction needs ATP. Muscle fatigue occurs due to formation of lactic acid.
339977
With which state of a living muscle are the following events associated? i. \(\mathrm{Ca}^{++}\)released by sarcoplasmic reticulum ii. Actin forms complex with myosin iii. ATPase is activated iv. troponin binds \(\mathrm{Ca}^{++}\)
1 Relaxed state
2 Muscle at the end of contraction
3 Muscle in tetanus
4 Muscle at the beginning of contraction
Explanation:
Given events occur when muscle is at the beginning of contraction.
BIOXI20: LOCOMOTION AND MOVEMENT
339978
Identify the labeled parts from A, B, C from the diagram of myosin monomer
1 A-Head B-Cross arm C-ATP binding site
2 A-Head B-Cross arm C-GTP binding site
3 A-Cross B-Head arm C-ATP binding site
4 A-Head B-Cross arm C-\({\rm{C}}{{\rm{a}}^{{\rm{2 + }}}}\) binding site
Explanation:
The labeled parts from A,B,C from the diagram of myosin monomer are head, cross arm and ATP binding site respectively.
BIOXI20: LOCOMOTION AND MOVEMENT
339980
Myoglobin occurs in
1 Red muscle fibre
2 White fibres
3 Cardiac muscle fibres
4 Both (1) and (2)
Explanation:
Red muscles are thin muscle fibres which are dark red in colour due to presence of large amount of myoglobin which is a red haemoprotein. Myoglobin stores oxygen as oxymyoglobin in red muscle fibres, it releases oxygen for utilisation during muscle contraction.
BIOXI20: LOCOMOTION AND MOVEMENT
339981
Statement A : Muscle contraction does not need ATP. Statement B : Muscle fatigue occurs due to pyruvic acid formation.
1 Statement A is correct but Statement B is incorrect.
2 Statement A is incorrect but Statement B is correct.
3 Both statements are correct.
4 Both Statements are incorrect.
Explanation:
Muscle contraction needs ATP. Muscle fatigue occurs due to formation of lactic acid.
339977
With which state of a living muscle are the following events associated? i. \(\mathrm{Ca}^{++}\)released by sarcoplasmic reticulum ii. Actin forms complex with myosin iii. ATPase is activated iv. troponin binds \(\mathrm{Ca}^{++}\)
1 Relaxed state
2 Muscle at the end of contraction
3 Muscle in tetanus
4 Muscle at the beginning of contraction
Explanation:
Given events occur when muscle is at the beginning of contraction.
BIOXI20: LOCOMOTION AND MOVEMENT
339978
Identify the labeled parts from A, B, C from the diagram of myosin monomer
1 A-Head B-Cross arm C-ATP binding site
2 A-Head B-Cross arm C-GTP binding site
3 A-Cross B-Head arm C-ATP binding site
4 A-Head B-Cross arm C-\({\rm{C}}{{\rm{a}}^{{\rm{2 + }}}}\) binding site
Explanation:
The labeled parts from A,B,C from the diagram of myosin monomer are head, cross arm and ATP binding site respectively.
BIOXI20: LOCOMOTION AND MOVEMENT
339980
Myoglobin occurs in
1 Red muscle fibre
2 White fibres
3 Cardiac muscle fibres
4 Both (1) and (2)
Explanation:
Red muscles are thin muscle fibres which are dark red in colour due to presence of large amount of myoglobin which is a red haemoprotein. Myoglobin stores oxygen as oxymyoglobin in red muscle fibres, it releases oxygen for utilisation during muscle contraction.
BIOXI20: LOCOMOTION AND MOVEMENT
339981
Statement A : Muscle contraction does not need ATP. Statement B : Muscle fatigue occurs due to pyruvic acid formation.
1 Statement A is correct but Statement B is incorrect.
2 Statement A is incorrect but Statement B is correct.
3 Both statements are correct.
4 Both Statements are incorrect.
Explanation:
Muscle contraction needs ATP. Muscle fatigue occurs due to formation of lactic acid.
