The energy for muscle contraction is most directly obtained from:
(1) Phosphocreatine
(2) ATP
(3) Anaerobic respiration
(4) Aerobic respiration
Prefer Books for Question Practice? Get NEETprep's Unique MCQ Books with Online Audio/Video/Text Solutions via Telegram Bot
NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyPut the following phrases in proper order to describe what occurs at the neuromuscular junction to trigger muscle contraction:
I. Receptor sites on sarcolemma.
II. Nerve impulse.
III. Release of Ca+2 from sarcoplasmic reticulum
IV. The neurotransmitter acetylcholine is released
V. Sarcomere shortern
VI. Synaptic cleft
VII. Spread of impulses over sarcolemma on T-tubules
(1) II, IV, I, VI, VII, III, V
(2) II, IV, VI, I, VII, III, V
(3) I, II, III, IV, V, VI, VII
(4) VII, VI, V, IV, III, II, I
Prefer Books for Question Practice? Get NEETprep's Unique MCQ Books with Online Audio/Video/Text Solutions via Telegram Bot
NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyGo through the following diagram describing muscle contraction:
Now identify A to E:
(1) A - Cross bridge, B - Cross bridge formation, C - Breaking of cross bridge, D - Sliding (rotation), E - ATP
(2) A - Cross bridge, B - Cross bridge formation, C - Sliding / rotation, D - Breaking of cross bridge, E - ATP
(3) A - Cross bridge, B - Breaking of Cross bridge, C - sliding / rotation, D - Cross bridge formation, E - AMP
(4) A - Cross bridge, B - Cross bridge formation, C - Sliding / rotation, D - ADP, E - Breaking of cross bridge
Prefer Books for Question Practice? Get NEETprep's Unique MCQ Books with Online Audio/Video/Text Solutions via Telegram Bot
NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyThe muscle band that remains unchanged during muscle contraction and relaxation of the skeletal muscle is:
(1) I
(2) A
(3) H
(4) Z-line
Prefer Books for Question Practice? Get NEETprep's Unique MCQ Books with Online Audio/Video/Text Solutions via Telegram Bot
NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyThe compound or pigment acting as an oxygen store in skeletal muscles is:
(1) Myoglobin
(2) Haemoglobin
(3) Myokinase or ATP
(4) Cytochrome
Prefer Books for Question Practice? Get NEETprep's Unique MCQ Books with Online Audio/Video/Text Solutions via Telegram Bot
NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyI. Number of mitochondria less.
II. Number of mitochondria more
III. Sarcoplasmic reticulum is abundant
IV. Myoglobin content high
V. Sarcoplasmic reticulum moderate
VI. Aerobic muscles
VII. Depend on anaerobic respiration for energy
VIII. Less myoglobin content
A. Red muscles B. White muscles
Identify above (I to VIII) traits as characteristic of A and B types of muscles:
(1) A - I, III, VII, VIII; B - II, IV, V, VI
(2) A - II, IV, V, VI; B - I, III, VII, VIII
(3) A - I, III, IV, VII; B - II, V, VI, VIII
(4) A - II, V, VI, VIII; B - I, III, IV, VII
Prefer Books for Question Practice? Get NEETprep's Unique MCQ Books with Online Audio/Video/Text Solutions via Telegram Bot
NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyHow many bones make up the human skeleton?
(1) 948
(2) 96
(3) 796
(4) 206
Prefer Books for Question Practice? Get NEETprep's Unique MCQ Books with Online Audio/Video/Text Solutions via Telegram Bot
NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyNumber of bones in human axial skeleton is:
(1) 80
(2) 106
(3) 206
(4) None of these
Prefer Books for Question Practice? Get NEETprep's Unique MCQ Books with Online Audio/Video/Text Solutions via Telegram Bot
NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyMatch Column-I with Column-II:
Column-I Column-II (Number of bones)
A. Cranium / Brainbox I. 22
B. Skull (Cranial and facial bones) II. 8
C. Face III. 14
D. Hind limb IV. 12 pairs
E. Ribs V. 30
(1) A - I, B - II, C - III, D - V, E - IV
(2) A - II, B - I, C - III, D - V, E - IV
(3) A - I, B - II, C - III, D - IV, E - V
(4) A - V, B - IV, C - III, D - II, A - I
Prefer Books for Question Practice? Get NEETprep's Unique MCQ Books with Online Audio/Video/Text Solutions via Telegram Bot
NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyHuman skull is:
(1) Dicondylic
(2) Monocondylic
(3) Procoelous
(4) Hetercoelous
Prefer Books for Question Practice? Get NEETprep's Unique MCQ Books with Online Audio/Video/Text Solutions via Telegram Bot
NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology