Mechanism of Muscle Contraction
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BIOXI20: LOCOMOTION AND MOVEMENT

340020 A motor unit consists of

1 All the muscle fibres in a fascicle
2 A motor neuron plus all the muscle fibres it stimulates
3 All the motor neurons innervating a muscle
4 A motor end plate and the axon terminal that synapses with it
BIOXI20: LOCOMOTION AND MOVEMENT

340021 Repeated activation of a skeletal muscle can cause fatigue due to the

1 Accumulation of lactic acid, a byproduct of anaerobic respiration
2 Accumulation of lactic acid, a byproduct of aerobic respiration
3 Increase in \(\mathrm{pH}\) due to the accumulation of \(\mathrm{CO}_{2}\)
4 Synthesis of ATP from creatine phosphate
BIOXI20: LOCOMOTION AND MOVEMENT

340022 In a running race, which is the major source of energy to the leg muscle?

1 Glycolysis
2 Pyruvate and lactate
3 Starch
4 Oxidative metabolism
BIOXI20: LOCOMOTION AND MOVEMENT

340023 Number of mitochondria are few in them, but the amount of sarcoplasmic reticulum is high. The following line refers to?

1 White muscle fibres
2 Red muscle fibres
3 Both
4 None of them
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BIOXI20: LOCOMOTION AND MOVEMENT

340020 A motor unit consists of

1 All the muscle fibres in a fascicle
2 A motor neuron plus all the muscle fibres it stimulates
3 All the motor neurons innervating a muscle
4 A motor end plate and the axon terminal that synapses with it
BIOXI20: LOCOMOTION AND MOVEMENT

340021 Repeated activation of a skeletal muscle can cause fatigue due to the

1 Accumulation of lactic acid, a byproduct of anaerobic respiration
2 Accumulation of lactic acid, a byproduct of aerobic respiration
3 Increase in \(\mathrm{pH}\) due to the accumulation of \(\mathrm{CO}_{2}\)
4 Synthesis of ATP from creatine phosphate
BIOXI20: LOCOMOTION AND MOVEMENT

340022 In a running race, which is the major source of energy to the leg muscle?

1 Glycolysis
2 Pyruvate and lactate
3 Starch
4 Oxidative metabolism
BIOXI20: LOCOMOTION AND MOVEMENT

340023 Number of mitochondria are few in them, but the amount of sarcoplasmic reticulum is high. The following line refers to?

1 White muscle fibres
2 Red muscle fibres
3 Both
4 None of them
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BIOXI20: LOCOMOTION AND MOVEMENT

340020 A motor unit consists of

1 All the muscle fibres in a fascicle
2 A motor neuron plus all the muscle fibres it stimulates
3 All the motor neurons innervating a muscle
4 A motor end plate and the axon terminal that synapses with it
BIOXI20: LOCOMOTION AND MOVEMENT

340021 Repeated activation of a skeletal muscle can cause fatigue due to the

1 Accumulation of lactic acid, a byproduct of anaerobic respiration
2 Accumulation of lactic acid, a byproduct of aerobic respiration
3 Increase in \(\mathrm{pH}\) due to the accumulation of \(\mathrm{CO}_{2}\)
4 Synthesis of ATP from creatine phosphate
BIOXI20: LOCOMOTION AND MOVEMENT

340022 In a running race, which is the major source of energy to the leg muscle?

1 Glycolysis
2 Pyruvate and lactate
3 Starch
4 Oxidative metabolism
BIOXI20: LOCOMOTION AND MOVEMENT

340023 Number of mitochondria are few in them, but the amount of sarcoplasmic reticulum is high. The following line refers to?

1 White muscle fibres
2 Red muscle fibres
3 Both
4 None of them
For More Updates join with Us
BIOXI20: LOCOMOTION AND MOVEMENT

340020 A motor unit consists of

1 All the muscle fibres in a fascicle
2 A motor neuron plus all the muscle fibres it stimulates
3 All the motor neurons innervating a muscle
4 A motor end plate and the axon terminal that synapses with it
BIOXI20: LOCOMOTION AND MOVEMENT

340021 Repeated activation of a skeletal muscle can cause fatigue due to the

1 Accumulation of lactic acid, a byproduct of anaerobic respiration
2 Accumulation of lactic acid, a byproduct of aerobic respiration
3 Increase in \(\mathrm{pH}\) due to the accumulation of \(\mathrm{CO}_{2}\)
4 Synthesis of ATP from creatine phosphate
BIOXI20: LOCOMOTION AND MOVEMENT

340022 In a running race, which is the major source of energy to the leg muscle?

1 Glycolysis
2 Pyruvate and lactate
3 Starch
4 Oxidative metabolism
BIOXI20: LOCOMOTION AND MOVEMENT

340023 Number of mitochondria are few in them, but the amount of sarcoplasmic reticulum is high. The following line refers to?

1 White muscle fibres
2 Red muscle fibres
3 Both
4 None of them