Free Locomotion And Movement (Daily Quiz: 4) NEET Biology Questions & Answers with Detailed Explanation & Full Review

Question-1

Sternum is connected to ribs by

(a) hyaline cartilage

(b) bony matter

(c) white fibrous cartilage

(d) areolar tissue

Question-2

Assertion:
Myasthenia gravis is autoimmune disorder.
Reason:
It results due to antibodies are formed that block our own nicotinic acetylcholine receptor at neuromuscular junction.

(a) If both the assertion and reason are true but the reason is not a correct explanation of the assertion

(b) If both the assertion and the reason are true and the reason is a correct explanation of the assertion

(c) If the assertion is true but the reason is false

(d) If both the assertion and reason are false

Question-3

The sliding filament theory can be best explained as

(a) Actin and myosin filaments shorten and slide pass each other.

(b) When myofilaments slide pass each other actin filaments shorten while myosin filaments do not shorten.

(c) Actin and myosin filaments do not shorten but rather slide pass each other.

(d) When myofilaments slide pass each other, the myosin filaments shorten while actin filaments do not shorten.

Question-4

Match the following and mark the correct option:

Column I	Column II
(A) Fast muscle fibres	(i) Myoglobin
(B) Slow muscle fibres	(ii) Lactic acid
(C) Actin filament	(iii) Contractile unit
(D) Sarcomere	(iv) I-band

(a) A – ii, B – i, C – iii, D – iv

(b) A – i, B – ii, C – iv, D – iii

(c) A – ii, B – i, C – iv, D – iii

(d) A – iii, B – ii, C – iv, D – i

Question-5

Total number of movable bones (excluding hyoid) in human skull are

(a) 6

(b) 1

(c) 4

(d) 7