NEET Test Series-2021/NEET Biology MCQS Mock Test Paper 7 Sample Test,Sample questions

Question:
A person on a long hunger strike, surviving only on water will have

1.less amino acids in his urine

2.more sodium in hir urine

3.less urea in his urine

4.more glucose in his blood


Question:
Absorptive heterotrophic nutrition is exhibited by

1.fungi

2. algae

3. pteridophytes

4.bryophytes


Question:
Assertion: mode of nutrition in higher animals is heterotrophic. Reason: Animals can use different trophic levels for heterotrophic nutrition

1. if the assertion is true but reason is false

2. if both assertion and reason are true and reason is correct explanation of assertion

3.if both assertion and reason are false

4.if both assertion and reason are true but reason is not correct explanation of assertion


Question:
At this stage of wastewater treatment, methanogenic microbes are the most significant

1.Sludge digestion

2.Primary treatment

3.Secondary treatment

4.Biological oxidation


Question:
 A stable ecosystem is maintained with the interaction of

1.predators

2. prey

3.animals-human

4. predator-prey


Question:
 Extranuclear DNA is found in

1.Ribosome

2. Chloroplast

3.Golgi apparatus

4.endoplasmic reticulum


Question:
 If we separate the cell organelles of a living cell, then which part should be alive

1.Ribosome

2.cell wall

3.endoplasmic reticulum

4.chloroplast


Question:
 In Drosera, movement of tentacles are

1.Thermonastic

2.Photomastic

3.Seismonastic

4. Thigmonastic


Question:
 The mode of nutrition in fungi

1.saprotrophic or parasitic

2.only parasitic

3.only saprotrophic

4.none of above


Question:
 The mutualistic association between certain fungi and roots of vascular plants are known as

1.haustoria

2.mycelium

3.rhizoids

4. mycorrhizae


Question:
 This bioremediation technique includes mixing contaminated water and soil, fertilizers and carbon dioxide in a bioreactor to stimulate biodegradation

1. Composting

2. Slurry-phase bioremediation

3.In situ hybridization

4.Biopile treatment


Question:
Bioaugmentation involves

1.eliminating sludge

2.plants usage for bioremediation

3.addition of microbes to a cleanup site

4.bioventing


Question:
Bioremediation

1.usage of microbes to create new organisms

2.usage of anaerobic bacteria to create new antibiotics

3.usage of microbes to destroy environmental pollutants

4.usage of aerobic bacteria to create new vaccines


Question:
Chlorophyll in chloroplasts is present in

1.Stroma

2.outer membrane

3. thylakoids

4. inner membrane


Question:
Digestion of food in amoeba occurs in

1.cytoplasm

2.nucleus

3.food vacuole

4.none of the above


Question:
Factors that modify geotropic responses are

1.root and shoot apices, humidity and temperature

2.root and shoot apices, phytochrome, humidity and temperature

3.root and shoot apices, temperature, light and atmospheric carbon dioxide

4.none of these


Question:
Factory for synthesis of sugars in autotrophic eukaryotes

1.Mitochondria

2.Chloroplast

3.Ribosome

4.Endoplasmic reticulum


Question:
Heterotrophic nutrition is

1.oxidation of glucose

2.breakdown of glucose into energy

3.utilization of energy obtained by plants

4.all the above


Question:
In chloroplasts, the parallel layering of membranes is suited for

1.maximum exposure of enzymes

2.maximum light absorption

3.minimum light absorption so cells can maintain their temperature

4.all of these


Question:
In chloroplasts, where do light reactions occur

1.outer membrane

2. inner membrane

3.thylakoid membrane

4.stroma


Question:
In Paramoecium, osmoregulation is a function of

1.cytostome

2. contractile vacuole

3.cytopyge

4. trichocysts


Question:
Pneumatophores show

1.thigmotropism

2.negative phototropism

3.negative geotropism (ageotropism)

4.positive geotropism


Question:
Kidney matrix retains some quantity of urea to maintain

1.metabolism

2.micturition

3.desired osmolarity

4.balance of the body


Question:
Mechanism of regulation, typically between entities and its environment of solutes and the loss and gain of water is known as

1. Homeostasis

2.Thermoregulation

3.Hemostasis

4. Osmoregulation


Question:
Most of the marine invertebrates are

1.Osmoregulators

2.Osmoconformers

3.both depend on sea water concentration

4.None of the above


Question:
Movements of leaves of sensitive plant, Mimosa pudica are due to

1.seismonasty

2.chemonasty

3. thermonasty

4.hydrotropism


Question:
Nastic movements differ from tropic movements in being

1.Nondirectional

2. Movements of variation

3.Stimulated by chemicals

4.Directional


Question:
Osmoregulators carry out excretion of salt through

1.gills

2.fins

3. scales

4.bladder


Question:
Stroma is the ground material of which of these

1.Ribosomes

2.Lysosomes

3. Mitochondria

4.Chloroplasts


Question:
The bright colours of ripe fruits is due to

1. Chromoplasts

2.Chloroplasts

3.Amyloplasts

4. Leucoplasts


Question:
The mode of nutrition in which one organism obtains nutrition from other organisms is known as

1.symbiosis

2.autotrophic nutrition

3.saprophytic nutrition

4.heterotrophic nutrition


Question:
The parasitic fungus which destroys wheat plant is

1. lice

2. leech

3.cuscuta

4.Puccinia


Question:
The thylakoid in chloroplasts are arranged as

1.Stacked discs

2. interconnected disc

3.interconnected sacs

4.none of the above


Question:
This cleanup approach includes removal of groundwater or soil from its natural setting to permit for bioremediation

1.Bioaugmentation

2.in situ bioremediation

3.ex situ bioremediation

4.Phytoremediation


Question:
This is both osmoregulator and a nitrogenous product

1.Uric acid

2.Urea

3.NH3

4.All of the above


Question:
This is not a primary function of protonephridia

1. excretion

2.osmoregulation

3.fluid volume regulation

4.ionic volume regulation


Question:
This is used as an osmolyte in humans to increase medullary interstitial osmolality during concentration of urine

1.Urea

2.TMAO

3.(a) and (b) both

4. Uric acid


Question:
What is the mode of nutrition in bacteria?

1. heterotrophic

2.autotrophic

3.autotrophic and heterotrophic

4.none of the above


Question:
When green tomatoes fruits turn to red, then

1.new chromoplasts are formed

2.chloroplasts are disintegrated and get converted into chromoplasts

3.chromoplasts are changed to chloroplasts

4.none of these


Question:
Without restoration, if excess water passes out from the tissues of kidney, the cells would

1.shrivel and die

2.burst open and die

3.not get affected at all

4.take water from plasma


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