In mitochondria, cristae act as sites for
Options
(a) protein synthesis (b) breakdown of macromolecules (c) oxidation – reduction reaction (d) phosphorylation and flavoproteins
Correct Answer:
oxidation – reduction reaction
Explanation:
No explanation available. […]
In multicellular organisms, the 70S ribosomes are found in which parts of the cell
Options
(a) lysosomes (b) mitochondria (c) nucleus (d) endoplasmic reticulum
Correct Answer:
mitochondria
Explanation:
No explanation available. Be the first […]
All life on earth derive its energy directly or indirectly from sun except
Options
(a) Mushroom and mould (b) Chemosynthetic bacteria (c) Symbiotic bacteria (d) Pathogenic bacteria
Correct Answer:
Chemosynthetic bacteria
Explanation:
Chemosynthetic bacteria […]
Emerson effect is associated with
Options
(a) respiration (b) transpiration (c) salt absorption (d) photosynthesis
Correct Answer:
photosynthesis
Explanation:
Emerson (1943) discovered the existence of two photosystems (PSI and PSII). Emerson conducted experiments where […]
Electro-osmotic theory for translocation of solutes was proposed by
Options
(a) Spanner (b) Bose (c) Watson (d) Deurjes
Correct Answer:
Spanner
Explanation:
No explanation available. Be the first to write the explanation for this […]
In human percent of body weight of carbohydrates, lipids and proteins respectively is
Options
(a) 1, 15, 17 (b) 15, 17, 7 (c) 7, 17, 15 (d) 17, 15, 7
Correct Answer:
1, 15, […]
In higher plants, the shape of the chloroplast is
Options
(a) discoid (b) cup-shaped (c) girdle-shaped (d) reticular
Correct Answer:
discoid
Explanation:
In higher plants, the shape of the chloroplast is discoid. Chloroplast are […]
In higher plants, continuity of cytoplasm from one cell to its neighbouring cells is established through
Options
(a) apoplast (b) chloroplast (c) leucoplast (d) symplast
Correct Answer:
symplast
Explanation:
No explanation available. Be the […]
In germinating seed food supply is done by
Options
(a) auxin (b) gibberellin (c) cytokinin (d) ethylene
Correct Answer:
gibberellin
Explanation:
Gibberelin promotes seeds germination. During seed germination, especially of cereals, gibberelins stimulate the […]
In flagellar membrane which enzyme catalyses ATP?
Options
(a) cytoplasmic dynein (b) as conic dynein (c) kinesis (d) myosin
Correct Answer:
as conic dynein
Explanation:
No explanation available. Be the first to write the […]
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