238292
During muscle contraction actin and myosin form
1 actomyosin
2 actoplasm
3 plastosine
4 myoplasm
Explanation:
Exp. A During muscle contraction actin and myosin form a complex known as actomyosin. Actomyosin is a protein complex composed of actin and myosin. It is formed in muscles fibers where it plays a role in muscle contraction.
Manipal - 2001 / AIIMS-1995
Locomotion and Movement
238293
During muscular contraction which of the following events occur ?
1 (B), (D), (E), (A) only
2 (A), (C), (D), (E) only
3 (A), (B), (C), (D) only
4 (B), (C), (D), (E) only
5 Z-lines attached to actins are pulled inwards Choose the correct answer from the options given below
Explanation:
During muscle contraction, the cross bridges pull the thin filaments towards the centre of A band. The Z-line attached to the actins are also pulled inwards thereby causing a shorting of the sarcomere. - The I-bands get reduced, where as the ' ' bands retain the length. - Myosin hydrolyzes releasing the ADP and Pi.
NEET-2021 / AIIMS-2012
Locomotion and Movement
238294
What is/are is the function(s) of calcium?
1 Blood clotting
2 Muscular contraction
3 Nerve conduction
4 All of these
Explanation:
Calcium play a very important role in body function. - Calcium plays a crucial role in the process of blood clotting. Where it is involved in the activation of clotting factors - Calcium ions are essential for muscle contraction. During muscle contraction, calcium binds to the protein troponin, triggering a series of events that allow actin and myosin filaments to the interact and generate force - Nerve conduction Calcium ions are involved in the transmission of nerve impulse. They play a role in the release of neurotransmitters from nerve endings, which allows for the transmission of singles between neurons.
JIPMER-2018
Locomotion and Movement
238295
Sliding filament theory can be best explained as
1 When myofilaments slide pass each other actin filaments shorten while myosin filament donot shorten
2 Actin myosin filaments shorten and slide pass each other
3 actin and myosin filaments do not shorten, but rather slide pass each other
4 When myofilament slide pass each other myosin filament shorten while actin filament do not shorten
Explanation:
The sliding filament theory is the most widely accepted explanation for muscle contraction. According to this theory, during muscle contraction, the actin and myosin filaments within the muscle fibers slide pass each other, resulting in the shortening of the sarcomeres (the basic functional units of muscle fibers.) In the sliding filaments theory, the actin and myosin filaments themselves do not change in length, instead, they interact and slide pass each other.
238292
During muscle contraction actin and myosin form
1 actomyosin
2 actoplasm
3 plastosine
4 myoplasm
Explanation:
Exp. A During muscle contraction actin and myosin form a complex known as actomyosin. Actomyosin is a protein complex composed of actin and myosin. It is formed in muscles fibers where it plays a role in muscle contraction.
Manipal - 2001 / AIIMS-1995
Locomotion and Movement
238293
During muscular contraction which of the following events occur ?
1 (B), (D), (E), (A) only
2 (A), (C), (D), (E) only
3 (A), (B), (C), (D) only
4 (B), (C), (D), (E) only
5 Z-lines attached to actins are pulled inwards Choose the correct answer from the options given below
Explanation:
During muscle contraction, the cross bridges pull the thin filaments towards the centre of A band. The Z-line attached to the actins are also pulled inwards thereby causing a shorting of the sarcomere. - The I-bands get reduced, where as the ' ' bands retain the length. - Myosin hydrolyzes releasing the ADP and Pi.
NEET-2021 / AIIMS-2012
Locomotion and Movement
238294
What is/are is the function(s) of calcium?
1 Blood clotting
2 Muscular contraction
3 Nerve conduction
4 All of these
Explanation:
Calcium play a very important role in body function. - Calcium plays a crucial role in the process of blood clotting. Where it is involved in the activation of clotting factors - Calcium ions are essential for muscle contraction. During muscle contraction, calcium binds to the protein troponin, triggering a series of events that allow actin and myosin filaments to the interact and generate force - Nerve conduction Calcium ions are involved in the transmission of nerve impulse. They play a role in the release of neurotransmitters from nerve endings, which allows for the transmission of singles between neurons.
JIPMER-2018
Locomotion and Movement
238295
Sliding filament theory can be best explained as
1 When myofilaments slide pass each other actin filaments shorten while myosin filament donot shorten
2 Actin myosin filaments shorten and slide pass each other
3 actin and myosin filaments do not shorten, but rather slide pass each other
4 When myofilament slide pass each other myosin filament shorten while actin filament do not shorten
Explanation:
The sliding filament theory is the most widely accepted explanation for muscle contraction. According to this theory, during muscle contraction, the actin and myosin filaments within the muscle fibers slide pass each other, resulting in the shortening of the sarcomeres (the basic functional units of muscle fibers.) In the sliding filaments theory, the actin and myosin filaments themselves do not change in length, instead, they interact and slide pass each other.
238292
During muscle contraction actin and myosin form
1 actomyosin
2 actoplasm
3 plastosine
4 myoplasm
Explanation:
Exp. A During muscle contraction actin and myosin form a complex known as actomyosin. Actomyosin is a protein complex composed of actin and myosin. It is formed in muscles fibers where it plays a role in muscle contraction.
Manipal - 2001 / AIIMS-1995
Locomotion and Movement
238293
During muscular contraction which of the following events occur ?
1 (B), (D), (E), (A) only
2 (A), (C), (D), (E) only
3 (A), (B), (C), (D) only
4 (B), (C), (D), (E) only
5 Z-lines attached to actins are pulled inwards Choose the correct answer from the options given below
Explanation:
During muscle contraction, the cross bridges pull the thin filaments towards the centre of A band. The Z-line attached to the actins are also pulled inwards thereby causing a shorting of the sarcomere. - The I-bands get reduced, where as the ' ' bands retain the length. - Myosin hydrolyzes releasing the ADP and Pi.
NEET-2021 / AIIMS-2012
Locomotion and Movement
238294
What is/are is the function(s) of calcium?
1 Blood clotting
2 Muscular contraction
3 Nerve conduction
4 All of these
Explanation:
Calcium play a very important role in body function. - Calcium plays a crucial role in the process of blood clotting. Where it is involved in the activation of clotting factors - Calcium ions are essential for muscle contraction. During muscle contraction, calcium binds to the protein troponin, triggering a series of events that allow actin and myosin filaments to the interact and generate force - Nerve conduction Calcium ions are involved in the transmission of nerve impulse. They play a role in the release of neurotransmitters from nerve endings, which allows for the transmission of singles between neurons.
JIPMER-2018
Locomotion and Movement
238295
Sliding filament theory can be best explained as
1 When myofilaments slide pass each other actin filaments shorten while myosin filament donot shorten
2 Actin myosin filaments shorten and slide pass each other
3 actin and myosin filaments do not shorten, but rather slide pass each other
4 When myofilament slide pass each other myosin filament shorten while actin filament do not shorten
Explanation:
The sliding filament theory is the most widely accepted explanation for muscle contraction. According to this theory, during muscle contraction, the actin and myosin filaments within the muscle fibers slide pass each other, resulting in the shortening of the sarcomeres (the basic functional units of muscle fibers.) In the sliding filaments theory, the actin and myosin filaments themselves do not change in length, instead, they interact and slide pass each other.
238292
During muscle contraction actin and myosin form
1 actomyosin
2 actoplasm
3 plastosine
4 myoplasm
Explanation:
Exp. A During muscle contraction actin and myosin form a complex known as actomyosin. Actomyosin is a protein complex composed of actin and myosin. It is formed in muscles fibers where it plays a role in muscle contraction.
Manipal - 2001 / AIIMS-1995
Locomotion and Movement
238293
During muscular contraction which of the following events occur ?
1 (B), (D), (E), (A) only
2 (A), (C), (D), (E) only
3 (A), (B), (C), (D) only
4 (B), (C), (D), (E) only
5 Z-lines attached to actins are pulled inwards Choose the correct answer from the options given below
Explanation:
During muscle contraction, the cross bridges pull the thin filaments towards the centre of A band. The Z-line attached to the actins are also pulled inwards thereby causing a shorting of the sarcomere. - The I-bands get reduced, where as the ' ' bands retain the length. - Myosin hydrolyzes releasing the ADP and Pi.
NEET-2021 / AIIMS-2012
Locomotion and Movement
238294
What is/are is the function(s) of calcium?
1 Blood clotting
2 Muscular contraction
3 Nerve conduction
4 All of these
Explanation:
Calcium play a very important role in body function. - Calcium plays a crucial role in the process of blood clotting. Where it is involved in the activation of clotting factors - Calcium ions are essential for muscle contraction. During muscle contraction, calcium binds to the protein troponin, triggering a series of events that allow actin and myosin filaments to the interact and generate force - Nerve conduction Calcium ions are involved in the transmission of nerve impulse. They play a role in the release of neurotransmitters from nerve endings, which allows for the transmission of singles between neurons.
JIPMER-2018
Locomotion and Movement
238295
Sliding filament theory can be best explained as
1 When myofilaments slide pass each other actin filaments shorten while myosin filament donot shorten
2 Actin myosin filaments shorten and slide pass each other
3 actin and myosin filaments do not shorten, but rather slide pass each other
4 When myofilament slide pass each other myosin filament shorten while actin filament do not shorten
Explanation:
The sliding filament theory is the most widely accepted explanation for muscle contraction. According to this theory, during muscle contraction, the actin and myosin filaments within the muscle fibers slide pass each other, resulting in the shortening of the sarcomeres (the basic functional units of muscle fibers.) In the sliding filaments theory, the actin and myosin filaments themselves do not change in length, instead, they interact and slide pass each other.
