The joints between the carpal bones are
The joints between the carpal bones are
Options
(a) gliding joints (b) hinge joints (c) saddle joints (d) pivot joints
Correct Answer:
gliding joints
Explanation:
A gliding joint is the simplest of the […]
Questions
The ions extruded by auxin during cell wall extension is
The ions extruded by auxin during cell wall extension is
Options
(a) potassium (b) sodium (c) magnesium (d) hydrogen
Correct Answer:
hydrogen
Explanation:
IAA brings about cell wall extension by activating proton pump […]
The internal factor affecting transpiration is
The internal factor affecting transpiration is
Options
(a) oxygen (b) nitrogen (c) carbon dioxide (d) sunken stomata
Correct Answer:
sunken stomata
Explanation:
Transpiration is the process of loss of water in the form […]
The inner space of the mitochondria incompletely partioned by folds of inner
The inner space of the mitochondria incompletely partioned, by folds of inner membrane is known as the
Options
(a) cristae (b) matrix (c) F₀ subunit stalk (d) thylakoid
Correct Answer:
matrix
Explanation:
No […]
The important muscle proteins that help in movement are
The important muscle proteins that help in movement are
Options
(a) actin and myosin (b) tropomyosin (c) troponin (d) all of these
Correct Answer:
all of these
Explanation:
Actin is a contractile protein […]
The important barrier between the protoplasm and the outer environment in
The important barrier between the protoplasm and the outer environment in all the living cells is
Options
(a) cell wall (b) tonoplast (c) plasma membrane (d) nuclear membrane
Correct Answer:
plasma membrane
Explanation: […]
The idea of two pigment systems in light reaction of photosynthesis was given
The idea of two pigment systems in light reaction of photosynthesis was given by
Options
(a) Arnon (b) Hill (c) Blackman (d) Emerson
Correct Answer:
Emerson
Explanation:
Emerson et al (1957) said that […]
The Human vertebra is
The Human vertebra is
Options
(a) amphicoelous (b) acoelus (c) proceolous (d) heterocoelous
Correct Answer:
acoelus
Explanation:
Acoelous vertebra is that vertebra in which the centrum is flat at both the ends without […]
The hormone which prevents seed dormancy is
The hormone which prevents seed dormancy is
Options
(a) cytokinins (b) auxin (c) gibberellins (d) ethylene
Correct Answer:
gibberellins
Explanation:
Gibberelin is the hormone that breaks seed/bud dormancy. The tubers of potato reproduce […]
The heart is covered by
The heart is covered by
Options
(a) epicardium (b) pericardium (c) supracardium (d) endocardium
Correct Answer:
pericardium
Explanation:
No explanation available. Be the first to write the explanation for this question by […]