R4RIN – MCQs, Mock Tests | NTS NTS BIOLOGY CURRENT AFFAIRS SET 3

Which one of the following is not a neurotransmitter

1. acetylcholine
2. histine
3. adrenaline
4. serotonin

✅ Correct Answer: 2

The maximum speed of nerve impulse recorded in human is

1. 80 m/s
2. 100 m/s
3. 120 m/s
4. 140 m/s

✅ Correct Answer: 3

New cells were formed by division of previously existing living cells, statement given by

1. Pasteur
2. Lorenz oken
3. Robert hooke
4. Rudolph virchow

✅ Correct Answer: 4

Capsid of herpes virus contain number of capsomers

1. 162
2. 252
3. 165
4. 152

✅ Correct Answer: 1

Hepatitis A virus is

1. RNA enveloped
2. RNA non-enveloped
3. DNA envelope
4. DNA non-envelope

✅ Correct Answer: 2

Antibiotic that can cause allergic reactions

1. tetracycline
2. streptomycin
3. penicillin
4. terramycin

✅ Correct Answer: 4

Which is used as pollution indicator

1. kelp
2. spirogira
3. oscillatoria
4. aspergillus

✅ Correct Answer: 3

Which is used to lower blood cholesterol

1. cyclosporine
2. lovastatin
3. ergotine
4. penicillin

✅ Correct Answer: 2

Ringworm and athletes foot are superficial fungal infection caused by certain

1. zygomycota
2. ascomycota
3. basidiomycota
4. deuteromycota

✅ Correct Answer: 4

Paraphyses is a character of class

1. anthocerotae
2. hepaticopsida
3. bryopsida
4. psilopsida

✅ Correct Answer: 3

The family Solanaceae include all except

1. sweet pea
2. potato
3. tobacco
4. tomato

✅ Correct Answer: 1

Percentage of photosynthesis carried out by terrestrial plants

1. 11%
2. 10%
3. 20%
4. 70%

✅ Correct Answer: 2

Which thing in the gall bladder precipiatate to form gall stones

1. bile salts
2. bile acids
3. protein
4. cholesterol

✅ Correct Answer: 4

Energy trapped by producers in the ecosystem is

1. 1%
2. 99%
3. 75%
4. 65%

✅ Correct Answer: 1

Phytoplanktons include all except

1. protista
2. bacteria
3. algae
4. crustaceans

✅ Correct Answer: 4

The number of chromosome in mouse is

1. 20
2. 26
3. 40
4. 32

✅ Correct Answer: 3

Nicotine causes all of the following effects except

1. increase blood pressure
2. increase heart beat
3. increae digestive mobility
4. increase the action of acetylcholine

✅ Correct Answer: 4

Uterus opens into vagina through

1. cervix
2. urethra
3. clitoris
4. none of these

✅ Correct Answer: 1

The total gestation period is of

1. 265 days
2. 275 days
3. 280 days
4. 285 days

✅ Correct Answer: 3

The base pairs in DNA structure are far apart at a distance of

1. 2nm
2. 0.34nm
3. 3.4mm
4. both c and d

✅ Correct Answer: 2

The specialized structure including aster and spindle is called

1. centriole
2. astral microtubules
3. mitotic apparatus
4. all of these

✅ Correct Answer: 3

Human genome consists of base pairs

1. 3 billion
2. 3 million
3. 3 lac
4. 3 thousand

✅ Correct Answer: 1

Vestigial organs are example of

1. comparative anatomy
2. homology
3. analogy
4. all of these

✅ Correct Answer: 2

All are hyphal fungi except

1. mushrooms
2. morels
3. puff balls
4. yeast

✅ Correct Answer: 4

The cause of sleeping sickness is

1. plasmodium
2. tse-tse fly
3. trypanosoma
4. virus

✅ Correct Answer: 3

Reptiles flourished throughout

1. mesozoic era
2. cenozoic era
3. devonian era
4. jurassic era

✅ Correct Answer: 1

Each mesophyll cell have about chloroplast

1. 20-100
2. 40-100
3. 10-100
4. 50-100

✅ Correct Answer: 1

The chemical link between catabolism and anabolism is

1. ATP
2. oxygen
3. nitrogen
4. all of these

✅ Correct Answer: 1

All are diseases related to nutrition but which one is neurotic disorder also

1. dyspepsia
2. obesity
3. piles
4. bulimia nervosa

✅ Correct Answer: 4

The no. of spiracles in cockroach thorax is

1. 2
2. 4
3. 8
4. 10

✅ Correct Answer: 3

All are example of fish except

1. silver fish
2. whale
3. shark
4. trout

✅ Correct Answer: 1

Which one is present in plant cells only

1. mitochondria
2. golgi bodies
3. vacuoles
4. plastids

✅ Correct Answer: 4

Which cell is a anucleated cell

1. muscle cell
2. white blood cell
3. red blood cell
4. brain cell

✅ Correct Answer: 3

Mesosomes are internal extensions of

1. cell membrane
2. cell wall
3. nucleus
4. vacuole

✅ Correct Answer: 1

The small size and localized tumors are called

1. malignant
2. benign
3. both a and b
4. none of these

✅ Correct Answer: 2

A tiny part of DNA controlling a sprcific character is called

1. base pair
2. allele
3. gene
4. nucleotide

✅ Correct Answer: 3

The deficiency of thyroid secretions in adults produces

1. goiter
2. myxoedema
3. cretinism
4. graves disease

✅ Correct Answer: 2

Skeletal muscles are joined to bones with the help of

1. tendon
2. ligament
3. connective tissue
4. both a and b

✅ Correct Answer: 1

Panting the evaporative mechanism is most prominent in

1. elephant
2. bat
3. dog
4. fish

✅ Correct Answer: 2

To excrete 1 g of urea nitrogen water require is

1. 500ml
2. 5000ml
3. 50 cubic centimetre
4. 5000 cubic centimetre

✅ Correct Answer: 2

Some plants deposit strange chemicals in their branches and trunks especially in old xylem as in

1. conifers
2. eucalyptus
3. cactus
4. ebony

✅ Correct Answer: 4

All hormones are amino acids or their derivatives except

1. oxytocin
2. thyroxin
3. epinephrine
4. nor-epinephrine

✅ Correct Answer: 1

Hypothalamus is a part of

1. mid brain
2. hind brain
3. fore brain
4. medulla

✅ Correct Answer: 3

Equisetum is example of

1. lycopsida
2. bryopsida
3. sphenopsida
4. pteropsida

✅ Correct Answer: 3

Which is used to cure ring worm and skin diseases

1. cassia obovata
2. cassia senna
3. cassia fistula
4. cassia alata

✅ Correct Answer: 4