340028
Chemical ions responsible for muscle contraction are
1and
2and
3 and
4 and
Explanation:
Calcium ions play a significant role in muscle contraction. These activate the interaction of myosin and actin, through the intervention of tropomyosin and troponin. Magnesium, in muscle contraction, stimulates calcium re-uptake by the calcium-activated ATPase of the sarcoplasmic reticulum. It also affects the translocation of calcium ions through the smooth muscle cell membrane.
BIOXI20: LOCOMOTION AND MOVEMENT
340029
During strenuous exercise, glucose is converted into
1 Lactic acid
2 Pyruvic acid
3 Starch
4 Glycogen
Explanation:
Repeated activation of the muscle can lead to the accumulation of lactic acid due to anaerobic breakdown of glycogen in them, causing fatigue.
BIOXI20: LOCOMOTION AND MOVEMENT
340030
Which is correct between white and red muscles fibre?
1 White muscle fibre- Less myoglobin
2 White muscle fibre- Number of mitochondria is more
3 Red muscles fibre - Amount of sarcoplasmic reticulum is high
4 Aerobic muscle is white muscle fibre
Explanation:
White muscle fibres have less myoglobin as compared to red muscle fibre.
BIOXI20: LOCOMOTION AND MOVEMENT
340031
Sliding filament theory can be best explained as
1 Actin and myosin filaments do not shorten but rather slide pass each other.
2 When myofilaments slide pass each other, myosin filaments shorten while actin filaments do not shorten.
3 When myofilaments slide pass each other actin filaments shorten while myosin filaments do not shorten.
4 Actin and myosin filaments shorten and slide pass each other.
Explanation:
The sliding filament theory states that contraction of a muscle fibre takes place by the sliding of the thin filaments over the thick filaments. Neither thick nor thin filaments shorten.
340028
Chemical ions responsible for muscle contraction are
1and
2and
3 and
4 and
Explanation:
Calcium ions play a significant role in muscle contraction. These activate the interaction of myosin and actin, through the intervention of tropomyosin and troponin. Magnesium, in muscle contraction, stimulates calcium re-uptake by the calcium-activated ATPase of the sarcoplasmic reticulum. It also affects the translocation of calcium ions through the smooth muscle cell membrane.
BIOXI20: LOCOMOTION AND MOVEMENT
340029
During strenuous exercise, glucose is converted into
1 Lactic acid
2 Pyruvic acid
3 Starch
4 Glycogen
Explanation:
Repeated activation of the muscle can lead to the accumulation of lactic acid due to anaerobic breakdown of glycogen in them, causing fatigue.
BIOXI20: LOCOMOTION AND MOVEMENT
340030
Which is correct between white and red muscles fibre?
1 White muscle fibre- Less myoglobin
2 White muscle fibre- Number of mitochondria is more
3 Red muscles fibre - Amount of sarcoplasmic reticulum is high
4 Aerobic muscle is white muscle fibre
Explanation:
White muscle fibres have less myoglobin as compared to red muscle fibre.
BIOXI20: LOCOMOTION AND MOVEMENT
340031
Sliding filament theory can be best explained as
1 Actin and myosin filaments do not shorten but rather slide pass each other.
2 When myofilaments slide pass each other, myosin filaments shorten while actin filaments do not shorten.
3 When myofilaments slide pass each other actin filaments shorten while myosin filaments do not shorten.
4 Actin and myosin filaments shorten and slide pass each other.
Explanation:
The sliding filament theory states that contraction of a muscle fibre takes place by the sliding of the thin filaments over the thick filaments. Neither thick nor thin filaments shorten.
340028
Chemical ions responsible for muscle contraction are
1and
2and
3 and
4 and
Explanation:
Calcium ions play a significant role in muscle contraction. These activate the interaction of myosin and actin, through the intervention of tropomyosin and troponin. Magnesium, in muscle contraction, stimulates calcium re-uptake by the calcium-activated ATPase of the sarcoplasmic reticulum. It also affects the translocation of calcium ions through the smooth muscle cell membrane.
BIOXI20: LOCOMOTION AND MOVEMENT
340029
During strenuous exercise, glucose is converted into
1 Lactic acid
2 Pyruvic acid
3 Starch
4 Glycogen
Explanation:
Repeated activation of the muscle can lead to the accumulation of lactic acid due to anaerobic breakdown of glycogen in them, causing fatigue.
BIOXI20: LOCOMOTION AND MOVEMENT
340030
Which is correct between white and red muscles fibre?
1 White muscle fibre- Less myoglobin
2 White muscle fibre- Number of mitochondria is more
3 Red muscles fibre - Amount of sarcoplasmic reticulum is high
4 Aerobic muscle is white muscle fibre
Explanation:
White muscle fibres have less myoglobin as compared to red muscle fibre.
BIOXI20: LOCOMOTION AND MOVEMENT
340031
Sliding filament theory can be best explained as
1 Actin and myosin filaments do not shorten but rather slide pass each other.
2 When myofilaments slide pass each other, myosin filaments shorten while actin filaments do not shorten.
3 When myofilaments slide pass each other actin filaments shorten while myosin filaments do not shorten.
4 Actin and myosin filaments shorten and slide pass each other.
Explanation:
The sliding filament theory states that contraction of a muscle fibre takes place by the sliding of the thin filaments over the thick filaments. Neither thick nor thin filaments shorten.
340028
Chemical ions responsible for muscle contraction are
1and
2and
3 and
4 and
Explanation:
Calcium ions play a significant role in muscle contraction. These activate the interaction of myosin and actin, through the intervention of tropomyosin and troponin. Magnesium, in muscle contraction, stimulates calcium re-uptake by the calcium-activated ATPase of the sarcoplasmic reticulum. It also affects the translocation of calcium ions through the smooth muscle cell membrane.
BIOXI20: LOCOMOTION AND MOVEMENT
340029
During strenuous exercise, glucose is converted into
1 Lactic acid
2 Pyruvic acid
3 Starch
4 Glycogen
Explanation:
Repeated activation of the muscle can lead to the accumulation of lactic acid due to anaerobic breakdown of glycogen in them, causing fatigue.
BIOXI20: LOCOMOTION AND MOVEMENT
340030
Which is correct between white and red muscles fibre?
1 White muscle fibre- Less myoglobin
2 White muscle fibre- Number of mitochondria is more
3 Red muscles fibre - Amount of sarcoplasmic reticulum is high
4 Aerobic muscle is white muscle fibre
Explanation:
White muscle fibres have less myoglobin as compared to red muscle fibre.
BIOXI20: LOCOMOTION AND MOVEMENT
340031
Sliding filament theory can be best explained as
1 Actin and myosin filaments do not shorten but rather slide pass each other.
2 When myofilaments slide pass each other, myosin filaments shorten while actin filaments do not shorten.
3 When myofilaments slide pass each other actin filaments shorten while myosin filaments do not shorten.
4 Actin and myosin filaments shorten and slide pass each other.
Explanation:
The sliding filament theory states that contraction of a muscle fibre takes place by the sliding of the thin filaments over the thick filaments. Neither thick nor thin filaments shorten.
