NEET Biology MCQs For Full Syllabus Set A

Question: The scientific name for potato is correctly written as

• a)

  Solanum tuberosum

• b)

  Solanum Tuberosum

• c)

  solanum Tuberosum

• d)

  solanum tuberosum

Answer:

Solanum tuberosum

Question:

The first word in a biological name of an organism represents the ___i___, which always start with a ___ii___letter.

• a)

  

• b)

  

• c)

  

• d)

  

Answer:

Question:

____i____ is the branch of science which deals with classification of organisms based on their ____ii____ relationship.
Note: Options are given in horizontal row

• a)

  

• b)

  

• c)

  

• d)

  

Answer:

Question:

Biosystematics aims at

• a)

  the classification of organisms based on their evolutionary history and establishing their phylogeny on the totality of various parameters from all fields of studies

• b)

  identification and arrangement of organisms on the basis of their cytological characteristics

• c)

  the classification of organisms based on broad morphological characters

• d)

  delimiting various taxa of organisms and establishing their relationships

Answer:

the classification of organisms based on their evolutionary history and establishing their phylogeny on the totality of various parameters from all fields of studies

Question:

Assertion: “The Biological Species” concept helps us to ask how species are formed.
Reason: The concept of biological species focuses our attention on the question of how reproductive isolation comes about.

• a)

  Assertion is false but Reason is true

• b)

  Assertion is true but Reason is false

• c)

  Both Assertion and Reason are true but Reason is not the correct explanation of Assertion

• d)

  Both Assertion and Reason are true and Reason is the correct explanation of Assertion

Answer:

Assertion is false but Reason is true

Question:

Choose the correct sequence in the hierarchy of taxonomic categories in descending order.

• a)

  

• b)

  

• c)

  

• d)

  

Answer:

Question:

Which of the following represents the genetic material (RNA) in given figure?

• a)

  E

• b)

  C

• c)

  B

• d)

  A

Answer:

E

Question:

Mark the correct labelling in the T₄ bacteriophage from top to the bottom.

• a)

  head, collar, tail, endplate, tail fibre

• b)

  head, collar, endplate, tail, tail fibre

• c)

  collar, head, tail, endplate, tail fibre

• d)

  head, endplate, tail fibre, collar, tail

Answer:

head, collar, tail, endplate, tail fibre

Question:

Which one of the following is heterosporous?

• a)

  Salvinia

• b)

  Adiantum

• c)

  Equisetum

• d)

  Dryopteris

Answer:

Salvinia

Question:

Severe Acute Respiratory Syndrome (SARS)

• a)

  is caused by a variant of the common cold virus (corona virus)

• b)

  is caused by a variant of Pneumococcus pneumonia

• c)

  is an acute form of asthma

• d)

  affects non-vegetarians much faster than the vegetarians

Answer:

is caused by a variant of the common cold virus (corona virus)

Question:

• a)

  an obligately anaerobic chemoautotroph

• b)

  an obligately anaerobic chemoheterotroph

• c)

  a facultatively aerobic chemoheterotroph

• d)

  a facultatively anaerobic chemoautotroph

Answer:

an obligately anaerobic chemoautotroph

Question:

Which of the following types of flagella is shown in given figure?

• a)

  Peritrichous

• b)

  Amphitrichous

• c)

  Lophotrichous

• d)

  Monotrichous

Answer:

Peritrichous

Question:

Interval between infection and appearance of disease is called

• a)

  incubation period

• b)

  penetration period

• c)

  inoculation period

• d)

  infection period

Answer:

incubation period

Question:

Bacteria are grouped under four categories according to their shape. Study the given figures and select the correct option regarding this.

• a)

                        

  

• b)

                        

  

• c)

                        

  

• d)

                        

  

Answer:

Question:

Mark the correct labeling in the given floral diagram.

• a)

  A-Calyx B-Corolla C-Ovary D-Stamens

• b)

  A-Ovary B-Stamens C-C-alyx D-Corolla

• c)

  A-Corolla B-Ovary C-Stamens D-Calyx

• d)

  A-Stamens B-Calyx C-Corolla D-Ovary

Answer:

A-Calyx B-Corolla C-Ovary D-Stamens

Question:

The two layers of teeth in peristome of a moss are

• a)

  parts that help in the gradual dispersal of spores. The upper teeth are hygroscopic and open out only in dry weather. The lower one check sudden dispersal

• b)

  parts that help in the dispersal of spores. They are not hygroscopic and allow the discharge of spores by disintegration of capsule wall

• c)

  parts that help in the discharge of spores only when the capsule matures. After the operculum falls they dry up and open out

• d)

  decorative parts functioning like sepals and petals in a flower.

Answer:

parts that help in the gradual dispersal of spores. The upper teeth are hygroscopic and open out only in dry weather. The lower one check sudden dispersal

Question:

The given figure shows some types of inflorescences. Select the option that correctly identifies them.

• a)

  

  

• b)

  

  

• c)

  

  

• d)

  

  

Answer:

Question:

Life cycle of Funaria is not completed without water

• a)

  As fertilization takes place in the presence of water only

• b)

  As Funaria is a hydrophytic plant

• c)

  As branches will not develop

• d)

  As the plant is delicate and will dry and die without water

Answer:

As fertilization takes place in the presence of water only

Question:

Pigments present in chloroplast of Ulothrix are:

• a)

  Chl-a, Chl-b, b-carotene, xanthophylls

• b)

  Chl-a, Chl-b, r-phycocyanin, r-phycoerythrin

• c)

  Chl-a, Chl-b, Chl-c, C-phycocyanin, C-phycoerythrin

• d)

  Chlorophyll-a, Chl-b, fucoxanthin, b-carotene

Answer:

Chl-a, Chl-b, b-carotene, xanthophylls

Question:

The explanation for occurrence of ciliated motile sperms in xerophytic Cycas is:

• a)

  It is a vestigeal character indicating the pteridophytic ancestry of Cycas

• b)

  It is a functional character, the pollen chamber of Cycas is filled with water and the sperms must be ciliated for swimming

• c)

  When the pollen grain and ovules of Cycas fall on the ground, the pollen germinates and sperms swim in rain water to reach the ovule

• d)

  The cilia are a xerophytic character like hair

Answer:

It is a vestigeal character indicating the pteridophytic ancestry of Cycas

Question:

Most common method of vegetative reproduction in thalloid bryophytes is

• a)

  By protonema

• b)

  By death and decay of older portions of thallus

• c)

  By gemmae

• d)

  By adventitious branches

Answer:

By protonema

Question:

The Desulfovibrio bacterium breaks down organic matter (which it must have) and uses sulphate (not oxygen) as an electron acceptor. As a result, it produces hydrogen sulphide (H₂S) accounting for the ‘rotten egg” smell of swamp mud, oxygen is a deadly poison to Desulfovibrio. We would call Desulfovibrio.

• a)

  an obligately anaerobic chemoautotroph

• b)

  an obligately anaerobic chemoheterotroph

• c)

  a facultatively aerobic chemoheterotroph

• d)

  a facultatively anaerobic chemoautotroph

Answer:

an obligately anaerobic chemoautotroph

Question:

• a)

  1234/prqs

• b)

  1234/psrq

• c)

  1234/srqp

• d)

  1234/sprq

Answer:

1234/prqs

Question:

• a)

  A-3,B-4,C-5,D-3,E-1

• b)

  A - 3, B - 5, C - 4, D - 1, E - 2

• c)

  A-4,B-3,C-5,D-2,E- 1

• d)

  A-3,B-4,C-5,D-1,E-2

Answer:

A-3,B-4,C-5,D-3,E-1

Question:

In which one of the following sets of animals to all the four give birth to young ones?

• a)

  kangaroo, hedgehog, dolphin, Loris

• b)

  Platypus, penguin, bat, hippopotamus

• c)

  lion, bat, whale, ostrich

• d)

  shrew, bat, cat, kiwi

Answer:

kangaroo, hedgehog, dolphin, Loris

Question:

Ascaris and Anopheles are similar in

• a)

  Sexual dimorphism

• b)

  Anaerobic respiration

• c)

  Aquatic nature

• d)

  All the above

Answer:

Sexual dimorphism

Question:

Which of the following characters is not related to Aves

• a)

  Females genital organs of both sides functional

• b)

  Female genital organs of one sides functional

• c)

  Exoskeleton of feathers

• d)

  Homiothermy and presence of oil glands in skin

Answer:

Females genital organs of both sides functional

Question:

The cephalochordates

• a)

  All of the above

• b)

  Are ciliary feeders

• c)

  Retain the three primary chordate characters throughout the life

• d)

  Are exclusively marine in habitat

Answer:

All of the above

Question:

Flowers and stamens of composite are

• a)

  epigynous and inferior

• b)

  epigynous and superior

• c)

  hypogynous and inferior

• d)

  hypogynous and superior

Answer:

epigynous and inferior

Question:

When two stamens are short and two are long, they are

• a)

  didynamous

• b)

  varied stamens

• c)

  tetradynamous

• d)

  long and short stamens

Answer:

didynamous

Question:

Which of the following groups of structures/organs have similar function?

• a)

  Nephridia in earthworm, Malpighian tubules in cockroach and urinary tubules in rat

• b)

  Typhlosole in earthworm, intestinal villi in rat and contractile vacuole in Amoeba

• c)

  Antennae in cockroach, tympanum of frog and clitellum of earthworm

• d)

  Incisors of rat, gizzard (proventriculus) of cockroach and tubefeet of starfish

Answer:

Nephridia in earthworm, Malpighian tubules in cockroach and urinary tubules in rat

Question:

The hard cuticle of body wall of arthropods restricts growth and is periodically changed during growth. The process is called

• a)

  Both

• b)

  ecdysis

• c)

  moulting

• d)

  None

Answer:

Both

Question:

Study the following columns and choose the correct matching

• a)

  

  

• b)

  

   

• c)

  

   

• d)

  

   

Answer:

Question:

Parachute mechanism of seed dispersal is seen in

• a)

  Helianthus

• b)

  lotus

• c)

  poppy

• d)

  Plumbago

Answer:

Helianthus

Question:

Assertion: An ascending taxonomic sequence of Gossypium herbaceum indicates its placement in progressively higher groups.
Reason: Ascending taxonomic hierarchy indicates that a taxon is treated as belonging to a number of taxa.

• a)

  Both Assertion and Reason are true and Reason is the correct explanation of Assertion

• b)

  Both Assertion and Reason are true but Reason is not the correct explanation of Assertion

• c)

  Assertion is true but Reason is false

• d)

  Assertion is false but Reason is true

Answer:

Both Assertion and Reason are true and Reason is the correct explanation of Assertion

Question:

The photosynthetic-or assimilatory roots are observed in

• a)

  Tinospora

• b)

  Cuscuta

• c)

  Vanda

• d)

  Banyan

Answer:

Tinospora

Question:

Study the following statements and choose the correct option.
I. Buds are present in the axil of leaflets of the compound leaf.
II. Pulvinus leaf-base is present in some leguminous plants.
III. In Alstonia, the petioles expand, become green and synthesize food.
IV. Opposite phyllotaxy is seen in guava.

• a)

  II and IV are correct but I and III are wrong

• b)

  I and III are correct but II and IV are wrong

• c)

  I and IV are correct but II and III are wrong

• d)

  II, III and IV are correct but I is wrong

Answer:

II and IV are correct but I and III are wrong

Question:

Heartwood differs from sapwood in

• a)

  having dead and non-conducting elements

• b)

  presence of rays and fibres

• c)

  absence of vessels and parenchyma

• d)

  being susceptible to pests and pathogens

Answer:

having dead and non-conducting elements

Question:

barley stem, vascular bundles are

• a)

  closed and scattered

• b)

  closed and radial

• c)

  open and scattered

• d)

  open and in a ring

Answer:

closed and scattered

Question:

The number of stomata and epidermal cells in 1 mm2 leaf area of lower epidermis of the leaves of X, Y and Z plants are given below. Arrange the plants in decreasing order of theirstomatal index.

• a)

  Y, Z, X

• b)

  Z, Y, X

• c)

  Y, X, Z

• d)

  X, Y, Z

Answer:

Y, Z, X

Question:

• a)

  

  

• b)

  

  

• c)

  

  

• d)

  

  

Answer:

Question:

What is/are true about heart wood
(1) It does not help in water conduction
(2) It is also called alurnum
(3) It is dark in colour but very soft
(4) It has tracheary element which are filled with tannin, resin, etc.

• a)

  a and d

• b)

  b and d

• c)

  a, b and c

• d)

  b, c and d

Answer:

a and d

Question:

• a)

  abcd/3421

• b)

  abcd/2143

• c)

  abcd/3214

• d)

  abcd/1234

Answer:

abcd/3421

Question:

Characteristics present in meristematic cells are

• a)

  Characteristics present in meristematic cells are

• b)

  Thick wall, thin protoplasm, no intercellular spaces, isodiametric and nucleate

• c)

  Thick wall, dense protoplasm, intercellular spaces, elongate and nucleate

• d)

  Thin wall, thin protoplasm, no intercellular spaces, isodiametric and nucleate

Answer:

Characteristics present in meristematic cells are

Question:

Sieve plate is found as

• a)

  Both

• b)

  None

• c)

  Only compound

• d)

  Only simple

Answer:

Both

Question:

Identify the correct statement

• a)

  Grafting is difficult in monocot plants as they have scattered vascular bundles

• b)

  Healing of damaged tissue is because of the activity of sclerenchyma cells

• c)

  The age of the plant can be determined by its height

• d)

  Because of marked climatic variations, plants growing near the sea shore do not produce annual rings

Answer:

Grafting is difficult in monocot plants as they have scattered vascular bundles

Question:

From evolutionary point of view, tracheids and sieve cells are more primitive than tracheae and sieve tubes respectively. The angiosperms have

• a)

  tracheids, tracheae and sieve tubes

• b)

  tracheids, tracheae and sieve cells

• c)

  tracheae and sieve tubes

• d)

  tracheae, sieve cells and sieve tubes

Answer:

tracheids, tracheae and sieve tubes

Question:

Which one of the following is the correct pairing of a body part and the kind of muscle tissue that moves it?

• a)

  Iris — Involuntary smooth muscle

• b)

  Abdominal wall — Smooth muscle

• c)

  Biceps of upper arm — Smooth muscle fibres

• d)

  Heart wall— Involuntary unstriated muscle

Answer:

Iris — Involuntary smooth muscle

Question:

The following is a diagram of the just spawned frog’s egg; with the parts labelled from A to E. Identify the parts and choose the correct option from those given below.

• a)

  A = cytoplasm, B = plasma membrane, C = vitelline membrane, D = yolk, E = jelly coat

• b)

  A = cytoplasm, B = vitelline membrane, C = plasma membrane, D = yolk, E = jelly coat

• c)

  A = yolk, B = plasma membrane, C = vitelline membrane, D = cytoplasm, E = jelly coat

• d)

  A = yolk, B = jelly coat, C = vitelline membrane, D = cytoplasm, E = plasma membrane

Answer:

A = cytoplasm, B = plasma membrane, C = vitelline membrane, D = yolk, E = jelly coat

Question:

Note the following statements.
I.It forms the lining of the cavities of alveoli of the lungs.
II.It forms the lining of wet surfaces like buccal cavity and oesophagus.
III.It occurs in the ducts of sweat glands.
IV.It forms the lining of salivary glands and sweat glands.
V.It is a loose connective tissue.
Which of the above statements are associated with simple epithelial tissue?

• a)

  I and IV

• b)

  II and III

• c)

  IV and V

• d)

  III and I

Answer:

I and IV

Question:

The internal walls of the blood vessels and the ____i_____ contain ____ii_____muscles.

• a)

  (i) stomach, (ii) smooth

• b)

  (i) diaphragm, (ii) Smooth

• c)

  (i) diaphragm, (ii) skeletal

• d)

  (i) stomach, (ii) skeletal

Answer:

(i) stomach, (ii) smooth

Question:

Which of the following is a correct feature

• a)

  Blood of earthworm is red but haemoglobin is dissolved in the plasma

• b)

  Blood of earthworm is red but haemoglobin is found in RBC

• c)

  Blood pigment in earthworm is haemoglobin

• d)

  Blood of the earthworm is blue

Answer:

Blood of earthworm is red but haemoglobin is dissolved in the plasma

Question:

The mouth parts of cockroach consist of _____i____, which forms the upper lip and _____ii____,
which acts as the lower lip. The information in which alternative completes the given statement?

• a)

  (i) labrum, (ii) labium

• b)

  (i) maxilla, (ii) Mandible

• c)

  (i) labrum, (ii) maxilla

• d)

  (i) mandible, (ii) labrum

Answer:

(i) labrum, (ii) labium

Question:

Which of the following structures distinguish a male frog from a female frog?

• a)

  Presence of copulatory pad on the first digit of fore limb

• b)

  Absence of copulatory pad on the first digit of fore limb

• c)

  Absence of nictitating membrane

• d)

  Presence of nictitating membrane

Answer:

Presence of copulatory pad on the first digit of fore limb

Question:

Lateral oesophageal heart connects

• a)

  Dorsal vessel, supra oesophageal vessel and ventral vessel

• b)

  Dorsal vessel and subneural vessel

• c)

  Supra oesophageal vessel and lateral oesoph-agca! vessel

• d)

  Dorsal vessel and ventral vessel

Answer:

Dorsal vessel, supra oesophageal vessel and ventral vessel

Question:

Alimentary canal wall contains

• a)

  smooth muscles

• b)

  None of these

• c)

  striped muscles

• d)

  striated muscles

Answer:

smooth muscles

Question:

How can you identify male and female cockroach –

• a)

  Male cockroach is identified by anal styles

• b)

  Anal cerci

• c)

  Anal style and antenna

• d)

  A and B both

Answer:

Male cockroach is identified by anal styles

Question:

Some bacterial cells were fixed for microscopic observation. A certain labelled structure X was observed on most occasions at the cell membrane

In the given illustration, label X represents

• a)

  mesosome

• b)

  ribosomes

• c)

  plasmids

• d)

  nucleoid

Answer:

mesosome

Question:

Formula of chlorophyll ‘a’ is:

• a)

  

• b)

  

• c)

  

• d)

  None of these

Answer:

Question:

Keeping in view the ‘fluid mosaic model’ for the structure of cell membrane, which one of the following statement is correct with respect to the movement of lipids and proteins from one lipid monolayer to the other (described as flip-flop movement)?

• a)

  While lipids can rarely flip-flop, proteins cannot

• b)

  While proteins can flip-flop, lipids cannot

• c)

  Neither lipids nor proteins can flip-flop

• d)

  Both lipids and proteins can flip-flop

Answer:

While lipids can rarely flip-flop, proteins cannot

Question:

There are two cells, A and B, isolated from different sources. Both the cells have genetic material, lipids in their membranes, and enzymes for energy production. Cell A has flagella, which is absent in cell B. Cell A has plasmids, while cell B has endoplasmic reticulum. Both cells lack chlorophyll and cellulose.
A and B are ____I____ and ____II____ cells respectively.
Which alternative correctly completes the given statement?

• a)

  Cell A- bacterial Cell B- animal

• b)

  Cell A- plant Cell B- animal

• c)

  Cell A- animal Cell B- bacterial

• d)

  Cell A- bacterial Cell B- plant

Answer:

Cell A- bacterial Cell B- animal

Question:

An exception to cell theory is

• a)

  Virus

• b)

  Fungi

• c)

  Bacteria

• d)

  Erythocytes

Answer:

Virus

Question:

The golgi components are bound by

• a)

  Single unit membrane

• b)

  Cisternae and tubules and vacuole by double

• c)

  Cisternae and tubules by single and vacuole by double

• d)

  Double unit membrane

Answer:

Single unit membrane

Question:

Which of the following structural components of chloroplasts contain photosynthetic pigments?

• a)

  Thylakoid

• b)

  Stroma

• c)

  Inner membrane

• d)

  Outer membrane

Answer:

Thylakoid

Question:

• a)

  

• b)

  

• c)

  

• d)

  

Answer:

Question:

• a)

  3H₂O

• b)

  3H₂

• c)

  H₂O

• d)

  H₂

Answer:

3H₂O

Question:

• a)

  I

• b)

  II

• c)

  III

• d)

  IV

Answer:

I

Question:

Which one of the following structural formulae of two organic compounds is correctly identified along with its related function?

• a)

  B-Adenine — A nucleotide that makes up nucleic acids

• b)

  A-Lecithin —A component of cell membrane

• c)

  B-Uracil — A component of DNA

• d)

  A-Triglyceride major — Source of energy

Answer:

B-Adenine — A nucleotide that makes up nucleic acids

Question:

Assertion- Arachidic acid is an unsaturated fatty acid.
Reason-     There are one or more double bonds between carbon atoms in unsaturated fatty acids

• a)

  Both Assertion and Reason are false

• b)

  Assertion is true but Reason is false

• c)

  Both Assertion and Reason are true but the Reason is not the correct explanation of Assertion

• d)

  Both Assertion and Reason are true and Reason is the correct explanation of Assertion

Answer:

Both Assertion and Reason are false

Question:

Match the column I with column II and select the correct option.

• a)

  

   

• b)

  

  

• c)

  

   

• d)

  

   

Answer:

Question:

Given below are two statements A and B. Choose the correct answer related to the statements.
Statement A. Amino acids are amphoteric in their function.
Statement B. All amino acids are necessary for our body

• a)

  Both the statements A and B are wrong

• b)

  Both the statements A and B are correct

• c)

  Statement A is correct but statement B is wrong

• d)

  Statement A is wrong but statement B is correct

Answer:

Both the statements A and B are wrong

Question:

During Meselson and Stahl’s experiments, heavy DNA was distinguished from normal DNA by centrifugation in

• a)

  It is located near the end of the chromosome.

• b)

  It is located slightly away from the middle of the chromosome.

• c)

  It is located in the middle of the chromosome.

• d)

  It is located at the tip of the chromosome

Answer:

It is located near the end of the chromosome.

Question:

• a)

  the deletion of chromosomes in gametic cells

• b)

  meiotic division

• c)

  mitotic division

• d)

  the small size of gametic cells

Answer:

the deletion of chromosomes in gametic cells

Question:

There are three genes a, b, c with percentages of crossing over between a and b is 20% b and c is 28% and a and c is 8%. What is the sequence of genes on chromosome?

• a)

  a, b, c

• b)

  a, c, b

• c)

  None of these

• d)

  b, a, c

Answer:

a, b, c

Question:

The number of mitotic cell divisions required to produce 256 cells from single cell would be

• a)

  8

• b)

  6

• c)

  12

• d)

  10

Answer:

8

Question:

• a)

  I and II only

• b)

  III and V only

• c)

  III and IV only

• d)

  I, III and V only

Answer:

I and II only

Question:

• a)

    

   

• b)

  

   

• c)

  

   

• d)

  

   

Answer:

Question:

The information in which alternative completes the given table?

• a)

  i – Meiosis ii- Mitosis iii- Meiosis

• b)

  i – Meiosis ii- Meiosis iii- Mitosis

• c)

  i – Meiosis ii- Mitosis iii- Mitosis

• d)

  i – Mitosis ii- Mitosis iii- Meiosis

Answer:

i – Meiosis ii- Mitosis iii- Meiosis

Question:

• a)

  system C

• b)

  system D

• c)

  system B

• d)

  system A

Answer:

system C

Question:

The given figure shows a plant cell placed in a sugar solution. The osmotic potential on either side of the cell membrane is shown.

Which of the following statements regarding the movement of water with respect to the plant cell is correct?

• a)

  The water will move from the solution to the cell.

• b)

  The solute will move from the solution to the cell

• c)

  The solute will move from the cell to the solution

• d)

  The water will move from the cell to the solution.

Answer:

The water will move from the solution to the cell.

Question:

Which of the following experiments is called physiological demonstration of osmosis?

• a)

  Thistle funnel, whose mouth is tied with egg membrane

• b)

  Thistle funnel, whose mouth is tied with parchment paper

• c)

  Potometer

• d)

  Bell jar experiment

Answer:

Thistle funnel, whose mouth is tied with egg membrane

Question:

Which of the following is correct?

• a)

  The direction of movement in the xylem is unidirectional, while that in the phloem is bidirection

• b)

  The direction of movement in the phloem is unidirectional, while that in the xylem is bidirectional

• c)

  The direction of movement in the xylem and phloem is unidirectional

• d)

  The direction of movement in the xylem and phloem is bi-directional.

Answer:

The direction of movement in the xylem is unidirectional, while that in the phloem is bidirection

Question:

Which of the following statements is/are not true?
I. In CAM plants, stomata open during dark and remain closed during the day.
II. Role of Na+ in stomatal opening is now universally accepted.
III. The water potential of root cells is higher than the water potential of soil.
IV. Capillarity theory is the most accepted theory of water movement through plants.
V. The walls of xylem vessels made up of lingo-cellulose have strong affinity for water molecules.

• a)

  II, III and IV

• b)

  I, II and III

• c)

  II and III

• d)

  II, III and V

Answer:

II, III and IV

Question:

When the plant cell is placed in _____i____ solution such as concentrated salt solution, the cell membrane of plant cells shrinks and the cell becomes _____ii____. The information in
which alternative completes the given statement?

• a)

  i- hypertonic ii- plasmolyzed

• b)

  i- hypertonic ii- turgid

• c)

  i- hypotonic ii- turgid

• d)

  i- hypotonic ii- plasmolyzed

Answer:

i- hypertonic ii- plasmolyzed

Question:

Which one of the following statements is wrong?

• a)

  Water potential equals solute potential in a fully turgid cell

• b)

  Pressure potential is zero in a flaccid cell

• c)

  Solute potential is always negative

• d)

  Water potential is the chemical potential of the water

Answer:

Water potential equals solute potential in a fully turgid cell

Question:

_____i____is the process of conversion of ammonia into amino acids in plants during which the amino group from one amino acid gets transferred to keto group of a keto acid. The reaction is catalyzed by the enzyme _____ii____. The information in which alternative completes the given statements?

• a)

  i- Transamination ii- transaminase

• b)

  i- Transamination ii- glutamate dehydrogenase

• c)

  i- Reductive amination ii- transaminase

• d)

  i- Reductive amination ii- glutamate dehydrogenase

Answer:

i- Transamination ii- transaminase

Question:

• a)

  A-V-v, B-III-iv, C-II-iii, D-I-ii, E-IV-i

• b)

  A-IV-iii, B-I-iv, C-V-v, D-III-ii, E-II-i

• c)

  A-I-iv, B-II-v, C-III-iii, D-IV-i, E-V-ii

• d)

  A-V-v, B-IV-iv, C-III-i, D-II-iii, E-I-ii

Answer:

A-V-v, B-III-iv, C-II-iii, D-I-ii, E-IV-i