340346
The globular head of HMM is an active ATPase enzyme and has i. ATP binding sites ii. Actin binding sites iii. Myosin binding sites iv. Troponin binding sites v. Calcium binding sites
1 i and iii
2 i and ii
3 i, iii and iv
4 i, iii and v
Explanation:
The HMM component, i.e; the head and short arm projects outwards at regular distance and angle from each other from the surface of polymerised myosin filament and is known as cross arm. The globular head is an active ATPase enzyme and has binding sites for ATP and active sites for actin.
BIOXI20: LOCOMOTION AND MOVEMENT
340347
Statement A : Each myofibril consists of alternate white and dark bands. Statement B : In muscle fibre, F-actin and tropomyosin are helically wound filaments
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:
Each myofibril consists of alternate light and dark bands.
BIOXI20: LOCOMOTION AND MOVEMENT
340348
Cross arms of the myosin monomer consist of
1 Outward projection of troponin
2 Outward projection of the tail region of meromyosin
3 Outward projection of the head and arm region of meromyosin
4 Both (2) and (3)
Explanation:
Each meromyosin has two important parts, a globular head with a short arm and a tail, the former being called the heavy meromyosin (HMM) and the latter, the light meromyosin (LMM). The HMM component, i.e.; the head and short arm projects outwards at regular distance and angle from each other from the surface of a polymerised myosin filament and is known as cross arm
BIOXI20: LOCOMOTION AND MOVEMENT
340349
Troponin is distributed at regular intervals on the ____
1 Actin
2 Meromyosin
3 Tropomyosin
4 Myosin
Explanation:
Troponin is distributed at regular intervals on the tropomyosin. In the resting state a subunit of troponin masks the active binding sites for myosin on the actin filaments
340346
The globular head of HMM is an active ATPase enzyme and has i. ATP binding sites ii. Actin binding sites iii. Myosin binding sites iv. Troponin binding sites v. Calcium binding sites
1 i and iii
2 i and ii
3 i, iii and iv
4 i, iii and v
Explanation:
The HMM component, i.e; the head and short arm projects outwards at regular distance and angle from each other from the surface of polymerised myosin filament and is known as cross arm. The globular head is an active ATPase enzyme and has binding sites for ATP and active sites for actin.
BIOXI20: LOCOMOTION AND MOVEMENT
340347
Statement A : Each myofibril consists of alternate white and dark bands. Statement B : In muscle fibre, F-actin and tropomyosin are helically wound filaments
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:
Each myofibril consists of alternate light and dark bands.
BIOXI20: LOCOMOTION AND MOVEMENT
340348
Cross arms of the myosin monomer consist of
1 Outward projection of troponin
2 Outward projection of the tail region of meromyosin
3 Outward projection of the head and arm region of meromyosin
4 Both (2) and (3)
Explanation:
Each meromyosin has two important parts, a globular head with a short arm and a tail, the former being called the heavy meromyosin (HMM) and the latter, the light meromyosin (LMM). The HMM component, i.e.; the head and short arm projects outwards at regular distance and angle from each other from the surface of a polymerised myosin filament and is known as cross arm
BIOXI20: LOCOMOTION AND MOVEMENT
340349
Troponin is distributed at regular intervals on the ____
1 Actin
2 Meromyosin
3 Tropomyosin
4 Myosin
Explanation:
Troponin is distributed at regular intervals on the tropomyosin. In the resting state a subunit of troponin masks the active binding sites for myosin on the actin filaments
340346
The globular head of HMM is an active ATPase enzyme and has i. ATP binding sites ii. Actin binding sites iii. Myosin binding sites iv. Troponin binding sites v. Calcium binding sites
1 i and iii
2 i and ii
3 i, iii and iv
4 i, iii and v
Explanation:
The HMM component, i.e; the head and short arm projects outwards at regular distance and angle from each other from the surface of polymerised myosin filament and is known as cross arm. The globular head is an active ATPase enzyme and has binding sites for ATP and active sites for actin.
BIOXI20: LOCOMOTION AND MOVEMENT
340347
Statement A : Each myofibril consists of alternate white and dark bands. Statement B : In muscle fibre, F-actin and tropomyosin are helically wound filaments
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:
Each myofibril consists of alternate light and dark bands.
BIOXI20: LOCOMOTION AND MOVEMENT
340348
Cross arms of the myosin monomer consist of
1 Outward projection of troponin
2 Outward projection of the tail region of meromyosin
3 Outward projection of the head and arm region of meromyosin
4 Both (2) and (3)
Explanation:
Each meromyosin has two important parts, a globular head with a short arm and a tail, the former being called the heavy meromyosin (HMM) and the latter, the light meromyosin (LMM). The HMM component, i.e.; the head and short arm projects outwards at regular distance and angle from each other from the surface of a polymerised myosin filament and is known as cross arm
BIOXI20: LOCOMOTION AND MOVEMENT
340349
Troponin is distributed at regular intervals on the ____
1 Actin
2 Meromyosin
3 Tropomyosin
4 Myosin
Explanation:
Troponin is distributed at regular intervals on the tropomyosin. In the resting state a subunit of troponin masks the active binding sites for myosin on the actin filaments
340346
The globular head of HMM is an active ATPase enzyme and has i. ATP binding sites ii. Actin binding sites iii. Myosin binding sites iv. Troponin binding sites v. Calcium binding sites
1 i and iii
2 i and ii
3 i, iii and iv
4 i, iii and v
Explanation:
The HMM component, i.e; the head and short arm projects outwards at regular distance and angle from each other from the surface of polymerised myosin filament and is known as cross arm. The globular head is an active ATPase enzyme and has binding sites for ATP and active sites for actin.
BIOXI20: LOCOMOTION AND MOVEMENT
340347
Statement A : Each myofibril consists of alternate white and dark bands. Statement B : In muscle fibre, F-actin and tropomyosin are helically wound filaments
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:
Each myofibril consists of alternate light and dark bands.
BIOXI20: LOCOMOTION AND MOVEMENT
340348
Cross arms of the myosin monomer consist of
1 Outward projection of troponin
2 Outward projection of the tail region of meromyosin
3 Outward projection of the head and arm region of meromyosin
4 Both (2) and (3)
Explanation:
Each meromyosin has two important parts, a globular head with a short arm and a tail, the former being called the heavy meromyosin (HMM) and the latter, the light meromyosin (LMM). The HMM component, i.e.; the head and short arm projects outwards at regular distance and angle from each other from the surface of a polymerised myosin filament and is known as cross arm
BIOXI20: LOCOMOTION AND MOVEMENT
340349
Troponin is distributed at regular intervals on the ____
1 Actin
2 Meromyosin
3 Tropomyosin
4 Myosin
Explanation:
Troponin is distributed at regular intervals on the tropomyosin. In the resting state a subunit of troponin masks the active binding sites for myosin on the actin filaments
