laboursonline – MCQs, Mock Tests | NEET Test Series-2021 to 2022 NEET Biology MCQS Mock Test Paper 30

This is true of the population which are included in Hardy-Weinberg equilibrium

1. entities migrate constantly
2. populations should be limited and small
3. mating is random
4. process of natural selection is occurring

✅ Correct Answer: 3

Ascaris has ______ cells in the excretory system

1. Green gland
2. Flame
3. Nephron
4. Renette

✅ Correct Answer: 4

Syncytial epidermis is found in_______.

1. Ascaris
2. Metaphire
3. Housefly
4. Periplaneta

✅ Correct Answer: 1

_______ is known as a coelom derived from blastocoel

1. Enterocoel
2. Haemocoel
3. Pseudocoel
4. Schizocoel

✅ Correct Answer: 3

This is the basis on which female Ascaris can be identified.

1. Two spicules found at the posterior end
2. Presence of postanal and preanal papillae
3. Straight posterior end
4. Common cloacal aperture

✅ Correct Answer: 3

In Ascaris; the period of incubation outside the human body is

1. More than 30 days
2. 15-30 days
3. 8-14 days
4. 4-8 days

✅ Correct Answer: 2

In the life cycle of Ascaris; the infective stage is

1. Third lava
2. Second larva
3. Cyst
4. Fertilized egg

✅ Correct Answer: 2

The body cavity of Ascaris is pseudocoel as

1. it is filled with pseudocoelomic fluid
2. has very little parenchyma
3. contains large cells termed pseudocoelocytes
4. bound extremely by muscle layer and internally by intestines

✅ Correct Answer: 4

Ascaris lumbricoides is found living in the intestine of

1. Pig
2. Homo sapiens
3. Monkey
4. Goat and sheep

✅ Correct Answer: 2

The process of morphological differentiating male and female sexes is known as

1. sexual dimorphism
2. polymorphism
3. variation
4. none of the above

✅ Correct Answer: 1

This has no alternate host

1. Plasmodium vivax
2. Tapeworm
3. Fasiola hepatica
4. Ascaris lumbricoides

✅ Correct Answer: 4

This is an extracellular messenger of apoptosis

1. tumor necrosis factor
2. serine
3. translation inhibitor
4. ribozyme

✅ Correct Answer: 1

This is concerned with the intrinsic pathway of apoptosis

1. cytochrome d
2. cytochrome c
3. cytochrome b
4. cytochrome a

✅ Correct Answer: 2

Apoptotic bodies can be recognized with the presence of these on the surface

1. phosphatidyl tyrosine
2. phosphatidylinositol
3. phosphatidylcholine
4. phosphatidylserine

✅ Correct Answer: 4

Apoptotic cells detach due to the inactivation of this

1. PKC
2. PKC
3. RAF1
4. FAK

✅ Correct Answer: 4

Shrinking of the nucleus is caused when this inactivates

1. gelsolin
2. tubulin
3. actin
4. lamin

✅ Correct Answer: 4

This cell organelle participates actively in animal apoptosis

1. nucleus
2. vacuoles
3. mitochondria
4. chloroplast

✅ Correct Answer: 3

This can stimulate cytochrome release from mitochondria

1. Akt
2. Bid
3. Bad
4. Smac

✅ Correct Answer: 2

This cannot be killed by apoptosis

1. immune cells
2. cells with DNA damage
3. cancer cells
4. a cell infected with viruses

✅ Correct Answer: 3

This is an anti-apoptotic protein

1. Bim
2. Bcl-Xs
3. Bfl 1
4. NOXA

✅ Correct Answer: 3

This is an active cell death process

1. necrosis
2. lysis
3. apoptosis
4. senescence

✅ Correct Answer: 3

Cristae in mitochondria serves as sites for

1. oxidation reduction reaction
2. protein synthesis
3. macromolecules breakdown
4. flavoproteins are phosphorylated

✅ Correct Answer: 1

Pick the incorrect statement

1. mitochondrial DNA is known as mtDNA
2. mitochondria is the powerhouse of the cell
3. mitochondria is the site for calvin cycle
4. mitochondria is the site for krebs cycle and oxidative phosphorylation

✅ Correct Answer: 3

Inner membrane of mitochondria is rich in phospholipid _______

1. phosphatidylserine
2. phosphatidylinositol
3. phosphatidylcholine
4. cardiolipin

✅ Correct Answer: 4

Mt DNA is

1. simple single stranded circular DNA molecule
2. simple double stranded circular DNA molecule
3. simple double stranded linear DNA molecule
4. simple single stranded linear DNA molecule

✅ Correct Answer: 2

Inner mitochondrial membrane has

1. cytochrome oxidase complex
2. b-c 1 complex
3. NADH dehydrogenase complex
4. all of the above

✅ Correct Answer: 4

This is not a function of mitochondria

1. fatty acid breakdown
2. non-shivering thermogenesis
3. electron transport chain and associated ATP production
4. glycolysis and associated ATP production

✅ Correct Answer: 4

This statement is incorrect about mitochondrial membrane

1. outer membrane is permeable to all molecule types
2. outer membrane is resembles a sieve
3. outer membrane embeds enzymes of electron transfer chain
4. none of these

✅ Correct Answer: 3

Oxysomes of F0-F1 particles take place on

1. Chloroplast surface
2. Thylakoid
3. Inner mitochondrial membrane
4. Mitochondrial surface

✅ Correct Answer: 3

Pick the incorrect statement

1. generally; chloroplasts are larger than mitochondria
2. mitochondria and chloroplasts both have DNA
3. mitochondria and chloroplasts both contain an outer and inner membrane
4. mitochondria and chloroplasts both have an internal compartment; the thylakoid space bound by thylakoid membrane

✅ Correct Answer: 4

Typically; the inner membrane of mitochondria is highly convoluted to form a series of infolding known as

1. grana
2. thylakoids
3. cristae
4. lamellae

✅ Correct Answer: 3

Inhibition of gastric secretions is brought about by

1. GIP
2. Cholecystokinin
3. Gastrin
4. Pancreozymin

✅ Correct Answer: 1

One of the constituents of the pancreatic juice while poured into the duodenum in humans is

1. trypsin
2. enterokinase
3. trypsinogen
4. chymotrypsin

✅ Correct Answer: 3

Pancreatitis can be produced by the following drug

1. Ciprofloxacin
2. Nalidixic acid
3. Colchicine
4. L-Asparaginase

✅ Correct Answer: 4

Gasless abdomen in X-ray is a sign of

1. Ulcerative colitis
2. Acute pancreatitis
3. Intussusception
4. Necrotizing enterocolitis

✅ Correct Answer: 2

This is a major product of chief cells

1. Mucus
2. Vitamin B12
3. Pepsinogen
4. HCl

✅ Correct Answer: 3

The islets of Langerhans are found in

1. Stomach
2. Alimentary canal
3. Pancreas
4. Liver

✅ Correct Answer: 3

Secretion of pancreatic juice is triggered by

1. secretin
2. enterogastrone
3. gastrin
4. enterokinase

✅ Correct Answer: 1

This is a common passage for bile and pancreatic juice

1. stomach
2. ampulla
3. duct of oddi
4. duct of wirsung

✅ Correct Answer: 2

Pancreas is not

1. Elongated organ
2. Compound
3. Exocrine portion secretes pancreatic juice
4. Located above duodenum

✅ Correct Answer: 4

This is most diagnostic investigation for acute pancreatitis

1. Serum LDH
2. Serum amylase
3. Serum Lipase
4. Serum P-isoamylase

✅ Correct Answer: 3

Good ozone is found in the

1. stratosphere
2. ionosphere
3. troposphere
4. mesosphere

✅ Correct Answer: 1

This is not the consequence of ozone layer depletion

1. malignant melanoma – skin cancer type
2. increased ultraviolet radiations
3. tides
4. (d) cyanobacteria are sensitive to UV rays and would be affected by its increase

✅ Correct Answer: 3

Greenhouses gases causing a rise of 3℃ rise in the overall global temperature in the past century are CFCs. The CFC used in refrigerators is

1. Ammonia
2. Freon
3. Methane
4. carbon dioxide

✅ Correct Answer: 2

Main cause of ozone holes and its depletion is

1. propellants
2. foam-blowing agents
3. halocarbon refrigerants
4. all of these

✅ Correct Answer: 4

Ozone can be destroyed by the following free radical(s)

1. chlorine radical (Cl)
2. hydroxyl radicals (OH)
3. nitric oxide radical (NO
4. all of these

✅ Correct Answer: 4

6. Following form(s) of oxygen is/are involved in ozone-oxygen cycle

1. triatomic oxygen (O3)
2. diatomic oxygen (O2)
3. atomic oxygen (O)
4. all of these

✅ Correct Answer: 4

Montreal protocol is related to the

1. food security
2. global warming
3. sustainable development
4. ozone layer depletion

✅ Correct Answer: 4

This is a major risk linked with extreme ultraviolet rays through the atmosphere as a result of ozone layer depletion

1. neurological disorder
2. digestive system gets damaged
3. increased liver cancer
4. increased skin cancer

✅ Correct Answer: 4

UV rays is higher in summer as

1. during summer; ozone is more in the atmosphere
2. sun is busy in summer specially
3. sun is closer to planet earth so UV rays have a shorter distance to travel and reach us
4. none of the above

✅ Correct Answer: 3