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NEET Biology MCQS Mock Test Paper 7
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1. Pneumatophores show
thigmotropism
negative phototropism
negative geotropism (ageotropism)
positive geotropism
2. Factors that modify geotropic responses are
root and shoot apices, humidity and temperature
root and shoot apices, phytochrome, humidity and temperature
root and shoot apices, temperature, light and atmospheric carbon dioxide
none of these
3. In Drosera, movement of tentacles are
Thermonastic
Photomastic
Seismonastic
Thigmonastic
4. Nastic movements differ from tropic movements in being
Nondirectional
Movements of variation
Stimulated by chemicals
Directional
5. Movements of leaves of sensitive plant, Mimosa pudica are due to
seismonasty
chemonasty
thermonasty
hydrotropism
6. Absorptive heterotrophic nutrition is exhibited by
fungi
algae
pteridophytes
bryophytes
7. The mode of nutrition in which one organism obtains nutrition from other organisms is known as
symbiosis
autotrophic nutrition
saprophytic nutrition
heterotrophic nutrition
8. Heterotrophic nutrition is
oxidation of glucose
breakdown of glucose into energy
utilization of energy obtained by plants
all the above
9. The parasitic fungus which destroys wheat plant is
lice
leech
cuscuta
Puccinia
10. Assertion: mode of nutrition in higher animals is heterotrophic. Reason: Animals can use different trophic levels for heterotrophic nutrition
if the assertion is true but reason is false
if both assertion and reason are true and reason is correct explanation of assertion
if both assertion and reason are false
if both assertion and reason are true but reason is not correct explanation of assertion
11. The mutualistic association between certain fungi and roots of vascular plants are known as
haustoria
mycelium
rhizoids
mycorrhizae
12. What is the mode of nutrition in bacteria?
heterotrophic
autotrophic
autotrophic and heterotrophic
none of the above
13. Digestion of food in amoeba occurs in
cytoplasm
nucleus
food vacuole
none of the above
14. The mode of nutrition in fungi
saprotrophic or parasitic
only parasitic
only saprotrophic
none of above
15. A stable ecosystem is maintained with the interaction of
predators
prey
animals-human
predator-prey
16. In Paramoecium, osmoregulation is a function of
cytostome
contractile vacuole
cytopyge
trichocysts
17. Osmoregulators carry out excretion of salt through
gills
fins
scales
bladder
18. Without restoration, if excess water passes out from the tissues of kidney, the cells would
shrivel and die
burst open and die
not get affected at all
take water from plasma
19. This is used as an osmolyte in humans to increase medullary interstitial osmolality during concentration of urine
Urea
TMAO
(a) and (b) both
Uric acid
20. A person on a long hunger strike, surviving only on water will have
less amino acids in his urine
more sodium in hir urine
less urea in his urine
more glucose in his blood
21. Mechanism of regulation, typically between entities and its environment of solutes and the loss and gain of water is known as
Homeostasis
Thermoregulation
Hemostasis
Osmoregulation
22. Most of the marine invertebrates are
Osmoregulators
Osmoconformers
both depend on sea water concentration
None of the above
23. Kidney matrix retains some quantity of urea to maintain
metabolism
micturition
desired osmolarity
balance of the body
24. This is not a primary function of protonephridia
excretion
osmoregulation
fluid volume regulation
ionic volume regulation
25. This is both osmoregulator and a nitrogenous product
Uric acid
Urea
NH3
All of the above
26. The bright colours of ripe fruits is due to
Chromoplasts
Chloroplasts
Amyloplasts
Leucoplasts
27. Factory for synthesis of sugars in autotrophic eukaryotes
Mitochondria
Chloroplast
Ribosome
Endoplasmic reticulum
28. Stroma is the ground material of which of these
Ribosomes
Lysosomes
Mitochondria
Chloroplasts
29. When green tomatoes fruits turn to red, then
new chromoplasts are formed
chloroplasts are disintegrated and get converted into chromoplasts
chromoplasts are changed to chloroplasts
none of these
30. The thylakoid in chloroplasts are arranged as
Stacked discs
interconnected disc
interconnected sacs
none of the above
31. If we separate the cell organelles of a living cell, then which part should be alive
Ribosome
cell wall
endoplasmic reticulum
chloroplast
32. Extranuclear DNA is found in
Ribosome
Chloroplast
Golgi apparatus
endoplasmic reticulum
33. In chloroplasts, where do light reactions occur
outer membrane
inner membrane
thylakoid membrane
stroma
34. In chloroplasts, the parallel layering of membranes is suited for
maximum exposure of enzymes
maximum light absorption
minimum light absorption so cells can maintain their temperature
all of these
35. Chlorophyll in chloroplasts is present in
Stroma
outer membrane
thylakoids
inner membrane
36. Bioaugmentation involves
eliminating sludge
plants usage for bioremediation
addition of microbes to a cleanup site
bioventing
37. This cleanup approach includes removal of groundwater or soil from its natural setting to permit for bioremediation
Bioaugmentation
in situ bioremediation
ex situ bioremediation
Phytoremediation
38. At this stage of wastewater treatment, methanogenic microbes are the most significant
Sludge digestion
Primary treatment
Secondary treatment
Biological oxidation
39. This bioremediation technique includes mixing contaminated water and soil, fertilizers and carbon dioxide in a bioreactor to stimulate biodegradation
Composting
Slurry-phase bioremediation
In situ hybridization
Biopile treatment
40. Bioremediation
usage of microbes to create new organisms
usage of anaerobic bacteria to create new antibiotics
usage of microbes to destroy environmental pollutants
usage of aerobic bacteria to create new vaccines
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