Locomotion and Movement(Types of Movement- Ciliary, Fiagellar, Muscular; Skeletal Muscle- Contractile Proteins and Muscle Contraction,...) NEET Questions

Biology - Human Physiology

Locomotion and Movement(Types of Movement- Ciliary, Fiagellar, Muscular; Skeletal Muscle- Contractile Proteins and Muscle Contraction,...) MCQ Questions


1.
Which of the following is a ball and socket joint in the human body?
A.
Elbow joint
B.
Knee joint
C.
Hip joint
D.
Intervertebral joint
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ANSWER :
C. Hip joint
2.
The contractile unit of a muscle fiber is called:
A.
Sarcolemma
B.
Sarcomere
C.
Myofibril
D.
Sarcoplasm
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ANSWER :
B. Sarcomere
3.
Which protein forms the thin filaments in a muscle fiber?
A.
Myosin
B.
Actin
C.
Tropomyosin
D.
Troponin
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ANSWER :
B. Actin
4.
The sliding filament theory explains the mechanism of:
A.
Nerve impulse conduction
B.
Muscle contraction
C.
Hormone action
D.
Enzyme activity
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ANSWER :
B. Muscle contraction
5.
Which ion is essential for muscle contraction by binding to troponin?
A.
Sodium
B.
Potassium
C.
Calcium
D.
Magnesium
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ANSWER :
C. Calcium
6.

The pivot joint between atlas and axis is a type of:

NEET - 2017

A.

Fibrous joint

B.

Synovial joint

C.

Saddle joint

D.

Cartilaginous joint

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ANSWER :

B. Synovial joint