R4RIN – MCQs, Mock Tests | NEET Test Series-2021 to 2022 NEET Biology MCQS Mock Test Paper 6

Ananda Chakraborty received the first U.S. patent for a GM entity. The entity was

1. The GloFish
2. a transgenic mouse expressing the growth hormone gene
3. Cloned E.Coli
4. Pseudomonas engineered to degrade petroleum

✅ Correct Answer: 4

A process using microbes to convert toxic industrial wastes to less toxic or non-toxic compounds is

1. Precipitation
2. Complement fixation
3. Bioconversion
4. Bioremediation

✅ Correct Answer: 4

______ bacterium can withstand the dosage of radiation, which are several times higher than what human cells can tolerate

1. Escherichia coli
2. Conus magus
3. Deinococcus radiodurans
4. Staphylococcus aureus

✅ Correct Answer: 3

The bioremediation process involving the usage of plants to degrade pollutants is

1. Composting
2. Biopile
3. Phytoremediation
4. Land farming

✅ Correct Answer: 3

This is not an indigenous microbe used for bioremediation

1. Pseudomonas aeruginosa
2. Piscirickettsia salmonis
3. Phanerochaete sordida
4. E. coli

✅ Correct Answer: 2

Which part of the ear has no role to play in hearing but is very important?

1. Ear ossicles
2. Organ of Corti
3. Eustachian tube
4. Vestibular apparatus

✅ Correct Answer: 4

It receives sound vibration and passes to the eardrum

1. outer ear
2. middle ear
3. inner ear
4. eustachian tube

✅ Correct Answer: 1

The border between the middle and inner ear is formed by

1. incus
2. oval window
3. pinnae
4. tympanic membrane

✅ Correct Answer: 2

The Organ of Corti is present in

1. scala vestibuli
2. scala tympani
3. scala media
4. none of the above

✅ Correct Answer: 3

The membranous labyrinth contains

1. Cystolymph
2. Otolymph
3. Perilymph
4. Endolymph

✅ Correct Answer: 4

Find the correct statement about the eustachian tube

1. connects internal ear to external ear
2. it equalises pressure between middle ear and outer atmosphere
3. connects middle ear to pharynx
4. Both (b) and (c)

✅ Correct Answer: 4

Find the correct statement about Inner ear

1. made up of bony and membranous segments
2. membranous labyrinth encloses bony labyrinth
3. endolymph surrounds membranous labyrinth
4. air-filled inner segment

✅ Correct Answer: 1

Find the incorrect match

1. Middle ear – amplifies sound waves
2. Hair cells – present on basilar membrane
3. Saccule and utricle – maintain static equilibrium
4. Cristae – perform hearing function

✅ Correct Answer: 4

The basilar membrane is present between

1. scala vestibule and scala media
2. scala media and scala tympani
3. both (a) and (b)
4. scala vestibule and scala tympani

✅ Correct Answer: 2

Which among the following is also known as bog moss?

1. Riccia
2. Sphagnum
3. Marchantia
4. Funaria

✅ Correct Answer: 2

The thalloid plant body is found in

1. Marchantia
2. Sphagnum
3. Funaria
4. Salvinia

✅ Correct Answer: 1

In some of the liverworts, spore dispersal is aided by

1. elaters
2. peristome teeth
3. indusium
4. calyptra

✅ Correct Answer: 1

Peat moss is used for transporting plants to distant places because

1. it is hygroscopic
2. it reduces transpiration
3. it is easily available
4. it serves as a disinfectant

✅ Correct Answer: 1

Find the true statement about bryophytes

1. they have chloroplasts
2. they have archegonia
3. they are thalloid
4. all of the above

✅ Correct Answer: 4

In mosses, meiosis takes place during

1. gamete formation
2. antheridia and archegonia formation
3. spore germination
4. spore formation

✅ Correct Answer: 4

A characteristic feature of bryophytes is

1. a dominant and parasitic sporophyte
2. a dominant and spore-producing gametophyte
3. a small sporophyte phase, which is dependent on the gametophyte
4. sporophytes stay for a longer duration

✅ Correct Answer: 3

The antherozoids of Funaria are

1. monociliated
2. biciliated
3. multiciliated
4. aciliated

✅ Correct Answer: 2

All the plants like fern and mosses, which produce spores are grouped under

1. bryophytes
2. cryptogams
3. thallophytes
4. sporophytes

✅ Correct Answer: 2

Independent male and female gametophytes are present in

1. Pinus
2. mustard
3. castor
4. Sphagnum

✅ Correct Answer: 4

Pick the odd one out in context of their surrounding membrane systems

1. Mitochondria
2. Chloroplasts
3. Endoplasmic reticulum
4. Nucleus

✅ Correct Answer: 3

Pick the odd one out

1. Glycosomes
2. Mitochondria
3. Hydrogenosomes
4. Mitosomes

✅ Correct Answer: 1

This organelle is involved in lipid metabolism

1. RER
2. SER
3. Golgi apparatus
4. Peroxisomes

✅ Correct Answer: 2

The organelle helping in penetrating of sperm into egg during fertilization is

1. peroxisome
2. nucleus
3. lysosome
4. mitochondrion

✅ Correct Answer: 3

Inside the cell, H2O2 clearance is brought about by

1. Peroxisome with enzyme amino oxidase
2. Glyoxysome with enzyme catalase
3. Peroxisome with enzyme catalase
4. Glyoxysome with enzyme isocitrate lyase

✅ Correct Answer: 3

Organelle – Glyoxysomes is involved in

1. conversion of fatty acids to lipids
2. conversion of amino acids to carbohydrates
3. conversion of fatty acids to carbohydrates
4. conversion of amino acids to proteins

✅ Correct Answer: 3

This forms the crystalline core inside peroxisome

1. condensed ammonium chloride
2. salt crystals
3. highly condensed oxidative enzymes
4. collection of phospholipids

✅ Correct Answer: 3

The name of the group of proteins in the peroxisomal membrane is

1. Peroxins
2. Transporters
3. Translocation proteins
4. Peroxisomal membrane proteins

✅ Correct Answer: 1

This enzyme embedded in the peroxisomal membrane is responsible to activate fatty acids before undergoing beta-oxidation.

1. Fatty acid dehydrogenase
2. 3-ketothiolase
3. Acyl- CoA oxidase
4. Acyl – CoA synthase

✅ Correct Answer: 4

This method dehydrates microbial cells by plasmolysis thereby causing them to die

1. Heating
2. Smoking
3. Pasteurization
4. Sugaring

✅ Correct Answer: 4

The full form of PFA is

1. Prevention of Food Act
2. Protection of Food Act
3. Prevention of Food Adulteration
4. None of the above is correct

✅ Correct Answer: 3

The preservation of food through ‘ Cold sterilization’ involves

1. Dehydration
2. Lyophilization
3. Refrigeration
4. Radiation

✅ Correct Answer: 4

This is an example of biological hazard

1. Cleaners
2. Antibiotics
3. Salmonella
4. Dirt

✅ Correct Answer: 3

Under the PFA Act, when is the food said to be adulterated

1. if any ingredient is injurious to health
2. if it is obtained from a diseased anima
3. if spices are sold without their essence
4. all of these

✅ Correct Answer: 4

HACCP stands for

1. Physical, Chemical and Biological hazards
2. Accurately monitoring food hygiene hazards
3. Identifying CCPs, inclusive of procedure, location and process
4. A systematic analysis of all steps and regular monitoring of control points

✅ Correct Answer: 4

Pasteurization is the process of healing milk

1. above 1500C
2. above 1210C
3. above boiling point
4. below boiling point

✅ Correct Answer: 4