Cell membrane permeability to ions is
Options
(a) permeable (b) deferentially permeable (c) semipermeable (d) impermeable
Correct Answer:
deferentially permeable
Explanation:
No explanation available. Be the first to write the explanation for this question […]
Cambium activity is highest in
Options
(a) spring (b) winter (c) autumn (d) rains
Correct Answer:
spring
Explanation:
No explanation available. Be the first to write the explanation for this question by commenting […]
Bacterial flagella do not show ATPase activity and 9 + 2 organization. These are chemically
Options
(a) Flagellin (b) Pilin (c) Tubulin (d) Bacterin
Correct Answer:
Flagellin
Explanation:
The bacterial flagellum is long, filamentous […]
As temperature changes from 3°C to 45°C, the rate of enzyme activity will
Options
(a) Decrease and then increase (b) Increase and then decrease (c) Increase only (d) Decrease only
Correct Answer:
Increase and […]
After karyogamy followed by meiosis, spores are produced exogenously in
Options
(a) Saccharomyces (b) Agaricus (c) Alternaria (d) Neurospora
Correct Answer:
Agaricus
Explanation:
In Agaricus (a genus of basidiomycetes), basidiospores or meiospores are produced […]
Which one of the following plants shows a very close relationship with a species of moth, where none of the two can complete its life cycle without the other?
Options
(a) Viola (b) Banana […]
Which of the following is not a product of light reaction of photosynthesis?
Options
(a) Oxygen (b) NADPH (c) NADH (d) ATP
Correct Answer:
NADH
Explanation:
ATP, NADPH and oxygen are products of […]
Winged pollen grains are present in
Options
(a) Pinus (b) Mango (c) Cycas (d) Mustard
Correct Answer:
Pinus
Explanation:
In Pinus, winged pollen grains are present. It is extended outer exine on two lateral […]
An ideal gas at constant temperature and pressure expands and its
Options
(a) internal energy increases (b) internal energy decreases (c) internal energy remains same (d) endropy increases and then decreases
Correct Answer:
internal […]
Equal volumes of methanoic acid and sodium hydroxide are mixed, if x is the heat of formation of water, then heat evolved on neutralisation is
Options
(a) twice of x (b) equal to x […]
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