Muscle

Q. All striated muscles are involuntary in nature.

1. True
2. False

Q.

Muscle fatigue occurs due to

1. Shortage of substrates

2. Lack of exercise

3. Overwork

4. All of the above

Q.

Which of the following is one of the primary functions of muscle tissue?

1. regeneration of mass

2. heat production

3. growth

4. the ability to last forever

Q.

A muscle can both pull and push.

1. Push only

2. Pull only

Q.

___ muscles bring about opposite movements of the parts concerned.

Q.

Regarding Assertion [A] and Reason [R], choose the correct option.

Assertion [A] : Muscles can only pull on structures not push.
Reason [R] : Skeletal muscles are often arranged in pairs that pull bones in opposite directions.

1. Assertion [A] is True and Reason [R] is False.

2. Reason [R] is True and Assertion [A] is False.

3. Assertion [A] is True and Reason [R] is True and is a correct explanation to [A].

4. Assertion [A] is True and Reason [R] is True but is not a correct explanation to [A].

Q. The muscles become shorter and thicker because of ________.

1. contraction
2. relaxation
3. extension
4. tearing

Q. Which tissue connects bones and muscles in our body?

1. Ligament
2. Blood
3. Tendon
4. Cartilage

Q.

Assertion [A]: Muscles have the capability to move

Reason [R]: It is due to their ability to contract and relax

1. [A] is true and [R] is false
2. [A] is false and [R] is true
3. Both [A] and [R] are true and [R] explains [A]
4. Both [A] and [R] are true and [R] does not explain [A]

Q. Assess the statements.
1. A-bands of the muscle is dark and contain myosin.
2. I-bands are the light bands and contain actin.
3. During muscle contraction the A-band contracts.
4. The part between the two Z-lines is called as sarcomere.
5. The central part of thick filament, not overlapped by thin filament, called H-zone.
Of the above statements.

1. 1, 3, 5 are correct while 2, 4 are incorrect.
2. 1, 2 and 3 are correct while 4 and 5 are incorrect.
3. 1 and 2 are correct while 3, 4 and 5 are incorrect.
4. 1, 2, 3 and 5 are correct while 4 is incorrect.
5. 1, 2, 4 and 5 are correct while 3 is incorrect.