laboursonline – MCQs, Mock Tests | NEET Test Series-2021 to 2022 NEET Biology MCQS Mock Test Paper 28

The chromosomes accounted for sex determination are referred to as

1. Heterosis
2. Multiple alleles
3. Allosomes
4. Autosomes

✅ Correct Answer: 3

The condition of Free martin is observed in

1. Frog
2. Rabbit
3. Goat/sheep etc
4. Man

✅ Correct Answer: 3

Consumption of this causes increase in the fat synthesis; dilation of blood vessels; low blood sugar and stomach-inflammation

1. drug addiction and tobacco
2. alcohol
3. tobacco
4. drug addiction

✅ Correct Answer: 1

This causes tunnel vision

1. Smoking
2. Alcohol
3. Barbiturates
4. Vitamin A deficiency

✅ Correct Answer: 2

After drinking alcohol; consumption of this leads to death

1. Morphine
2. Opium
3. Barbiturate
4. All of these

✅ Correct Answer: 3

This drug along with alcohol generates marked drowsiness otherwise does not produce sedative effect

1. Marijuana
2. Valium
3. Antihistamine
4. Barbiturate

✅ Correct Answer: 3

Constituent of alcoholic beverage is

1. Propyl alcohol
2. Methyl alcohol
3. Ethyl alcohol
4. Mix of all of these

✅ Correct Answer: 3

This is a result of the appearance of the fatty liver syndrome

1. synthesis of fatty acids; fat and glycerols
2. synthesis of fat from alcohol
3. synthesis of fat from amino acids
4. excessive synthesis of fat from fatty acids

✅ Correct Answer: 2

Alcoholism causing fatty acid syndrome is called

1. Cirrhosis
2. Neuritis
3. Gastritis
4. Nephritis

✅ Correct Answer: 1

This is a withdrawal symptom of alcohol consumption

1. Delirium
2. Nausea and vomiting
3. swollen and patchy face
4. all of these

✅ Correct Answer: 2

This causes the maximum accumulation of fat in the liver

1. meat and egg
2. alcohol
3. saturated fat
4. starch

✅ Correct Answer: 2

This is a consequence of alcohol addiction

1. psychosis; hypertension and fatty liver syndrome
2. cardiovascular diseases; hypertension and fatty liver syndrome
3. ulcers; all types of mental illness; vitamin deficiency; cardiovascular diseases
4. all of these

✅ Correct Answer: 2

Division to which Selaginella belongs is

1. Psilopsida
2. Pteropsida
3. Lycopsida
4. Spenopsida

✅ Correct Answer: 3

The character that Selaginella possesses which is of evolutionary significance is

1. Strobilus
2. Heterospory
3. Seed
4. Ligule

✅ Correct Answer: 2

This statement regarding Selaginella is incorrect

1. Endodermis is trabeculated
2. Vascular cylinder is protostelic
3. Few species of Selaginella are truly xerophytic
4. Selaginella is commonly distributed on plains and hills

✅ Correct Answer: 4

In this species of Selaginella; the apex continues its vegetative growth beyond the formation of strobilus

1. S.cuspidata
2. S.helvetica
3. S.rupestris
4. None of the above

✅ Correct Answer: 1

This is uncommon in Selaginella and Funaria

1. Embryo
2. Roots
3. Archegonium
4. Motile sperms

✅ Correct Answer: 2

The presence of ________ anatomically characterizes the stem of Selaginella

1. Protostele
2. Amphiphloic siphonostele
3. Siphonostele
4. Ectophloic siphonostele

✅ Correct Answer: 1

This characterizes the presence of Selaginella

1. Ligule
2. Homospory
3. Flowers
4. None of these

✅ Correct Answer: 1

Male gametes in Selaginella are

1. Multiflagellated
2. Biflagellated
3. Monoflagellated
4. Aflagellated

✅ Correct Answer: 2

Stele of Selaginella stem is

1. Eustelic
2. Solenostelic
3. Solenostelic
4. Dictyostelic

✅ Correct Answer: 3

This is the innermost layer of sporangium of Selaginella

1. Tapetum
2. Synangium
3. Elaters
4. None of these

✅ Correct Answer: 1

A common trait between tadpole and fish is

1. scales
2. lateral line
3. fins
4. legs

✅ Correct Answer: 2

This has a cartilaginous endoskeleton

1. Bony fishes
2. Mollusca
3. Dipnoi
4. Elasmobranch

✅ Correct Answer: 4

True fishes have fins and gills. This is not a true fish

1. Hippocampus – SeaHorse
2. Hythalamictyes – Silver carp
3. Carassius – Goldfish
4. Lepisma – Silverfish

✅ Correct Answer: 4

This fish shows dorsal fin modified into suckers

1. Neoceratodus
2. Hippocampus
3. Echeneis
4. Torpedo

✅ Correct Answer: 3

This is a living fossil

1. Lepidosiren
2. Latimeria
3. Lepidosteus
4. None of these

✅ Correct Answer: 2

This is a migratory fish

1. Ribbon fish
2. Carp
3. Salmon
4. Shark

✅ Correct Answer: 3

The distinguishing factor between rays and sharks are

1. type of tail fin
2. position of gill slits
3. position of mouth
4. nature of their scales

✅ Correct Answer: 2

Type of association between shark and suckerfish is

1. Predation
2. Parasitism
3. Commensalism
4. Symbiosis

✅ Correct Answer: 3

Placoid scales are found in

1. paleontological fishes
2. lung fishes
3. bony fishes
4. cartilaginous fishes

✅ Correct Answer: 4

This is a characteristic feature of fishes

1. gills and epidermal scales
2. tail and epidermal scales
3. gills and venous heart
4. venous heart and tail

✅ Correct Answer: 3

Phenomena through which water is absorbed by solids such as colloids leading them to increase in volume is

1. diffusion
2. imbibition
3. facilitated diffusion
4. osmosis

✅ Correct Answer: 2

In older dying leaves to younger leaves; the mineral ions are assimilated into

1. deposition of organic and inorganic compounds
2. organic compound
3. inorganic compounds
4. none of these

✅ Correct Answer: 2

Passage of water across a selectively permeable membrane is

1. osmosis
2. active transport
3. facilitated diffusion
4. pinocytosis

✅ Correct Answer: 1

Wall pressure will______________ with rise in turgidity

1. increase
2. decrease
3. remain unaffected
4. fluctuate

✅ Correct Answer: 1

Most effective light for stomatal opening is

1. Red
2. Blue
3. Green
4. Yellow

✅ Correct Answer: 2

Diffusion of water through selectively permeable membrane is

1. osmosis
2. imbibition
3. translocation
4. diffusion

✅ Correct Answer: 1

Water is forcefully pushed beyond endodermis of the root through the process of

1. diffusion
2. transmembrane transport
3. symplast pathway
4. apoplast pathway

✅ Correct Answer: 2

Transpiration is a phenomenon pertaining to

1. Activated transport
2. Diffusion
3. Osmosis
4. Facilitated diffusion

✅ Correct Answer: 2

When placed in water; raisins swell up as a result of

1. Adsorption
2. Plasmolysis
3. Endosmosis
4. Diffusion

✅ Correct Answer: 3

A bottle filled with previously moistened mustard seeds and water was screw-capped tightly and placed in a corner. After 30 minutes; it suddenly blew up. This is the process involved

1. DPD
2. Osmosis
3. Imbibition
4. Diffusion

✅ Correct Answer: 3

Liver functions are pivotal to

1. osmoregulation
2. thermoregulation
3. homeostasis
4. all of these

✅ Correct Answer: 3

During catabolism of amino acids; the release of the amino group is known as

1. deamination
2. hydrolysis
3. ammunition
4. hydration

✅ Correct Answer: 1

The only treatment in case of uremia is

1. dialysis
2. lithotripsy
3. lung transplant
4. kidney transplant

✅ Correct Answer: 4

This type of nephron is best to conserve water in body

1. Juxtamedullary nephrons
2. cortical nephrons
3. both (a) and (b)
4. serotical nephrons

✅ Correct Answer: 1

This is responsible for production of concentrated urine

1. proximal tubule
2. cortical nephrons
3. distal tubule
4. juxtamedullary nephron

✅ Correct Answer: 4

This nephron segment is not permeable to water even in the presence of ADH

1. Collecting duct
2. descending limb of loop of Henle
3. ascending limb of loop of Henle
4. both (b) and (c)

✅ Correct Answer: 3

Leaves fall of helping in plant to get rid of accumulated wastes hence known as

1. ebony
2. sacrifice
3. excretophore
4. helper

✅ Correct Answer: 3

Active uptake of sodium is promoted by action of enzyme known as

1. adrenatrone
2. aldosterone
3. antidiuretic
4. diuretic

✅ Correct Answer: 2