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NEET Practice 11th

Total questions: 91

Worksheet time: 46mins

Name
Class
Date
1.

ldentify the correct scientific name of

mango

a)

Mangifera Indica

b)

mangifera Indica

c)

Mangifera indica

d)

mangifera indica

2.

ldentify the correct scientific name of

mango

a)

Mangifera Indica

b)

mangifera Indica

c)

Mangifera indica

d)

mangifera indica

3.

The scientific name of man( Homo sapiens) is composed of

a)

species and genus

b)

species and family

c)

genus and family

d)

genus and species

4.

Identity the correct sequence

a)

a species- order -phylum -Kingdom

b)

b) genus-species -order -Kingdom

c)

c)species -genus- order- phylumn

d)

d) class- order -phylum- Kingdom

5.

Which of the following is meant living

a)

growth

b)

reproduction

c)

ability to sense

d)

all the above

6.

Bentham and Hook published the book is

a)

genera plantarum

b)

species plantarum

c)

systema naturae

d)

both a and b

7.

ICBN'S twelfth meeting held at

a)

USA

b)

USSR

c)

UK

d)

Britain

8.

The basic unit of classification is

a)

genus

b)

class

c)

species

d)

family

9.

who is identified the term species for the first time

a)

john ray

b)

carolus linnaeus

c)

R.H Whittaker

d)

Augustin pyramus

10.

According to ICBN ,which is correct?

a)

binomials are printed in italic and underlined

b)

lf generic and specific names are same it is called ambiguous name

c)

if naming of plant is from error source it is called tautonym

d)

original description of plant should be

latin translation

11.

the standard size of herbarium sheet is

a)

42cmx29cm

b)

41cm x 29cm

c)

41cm x 28 cm

d)

40cm x 30cm

12.

The suffix that denotes the taxonomic category 'Family' in plants would be

a)

-ae

b)

-aceae

c)

-ales

d)

-nae

13.

In__of higher animals and plants__and ___are mutually__events.

a)

All, cell division, replacement, dependent

b)

Majority, growth, reproduction, exclusive

c)

All, growth, cell division, dependent

d)

Majority ,cell division, replacement,exclusive

14.

The scientific term for biological classification categories is the:

a)

Species

b)

Taxon

c)

Phylum

d)

Domain

15.

Which of the following is less general in characters as compared to genus

a)

species

b)

family

c)

class

d)

division

16.

Two or more species occupying same or Overlapping areas are

a)

sypatric

b)

sibilling

c)

subspecies

d)

allopatric

17.

During which phase of the meiotic cell cycle does DNA replication occur?

a)

prophase

b)

metaphase

c)

anaphase

d)

telophase

e)

interphase

18.

When does crossover take place in meiosis?

a)

prophase

b)

metaphase

c)

anaphase

d)

telophase

e)

interphase

19.

During which phase of meiosis does the nuclear membrane reform around chromosomes?

a)

prophase I

b)

metaphase I

c)

anaphase II

d)

telophase II

e)

anaphase I

20.

A human cell containing 22 autosomes and a Y chromosome is...

a)

an ovum

b)

a sperm cell

c)

a somatic cell of a female

d)

a somatic cell of a male

e)

a zygote

21.

A human cell containing 44 autosomes and two X chromosomes is...

a)

an ovum

b)

a sperm cell

c)

a somatic cell of a female

d)

a somatic cell of a male

e)

a zygote

22.

Homologous chromosomes move towards opposite poles of a dividing cell during...

a)

mitosis

b)

meiosis I

c)

meiosis II

d)

fertilization

e)

binary fission

23.

Meiosis II is similar to mitosis in that...

a)

homologous chromosomes synapse

b)

DNA replicates before the division

c)

the daughter cells are diploid

d)

sister chromatids separate during anaphase

e)

the chromosome number is reduced

24.

Metaphase of meiosis I and meiosis II differ in that...

a)

chromosomes line up at the equator

b)

homologues line up in meiosis I and duplicated chromosomes line up in meiosis II

c)

sister chromatids line up in meiosis I and chromosomes line up in meiosis II

d)

there are the same number of chromosomes

25.

Asexually reproducing organisms produce offspring that are genetically identical to each other and to the parents. What type of cell division are the offspring a product of?

a)

mitosis

b)

meiosis

c)

binary fission

d)

fertilization

26.

At which stage of meiosis do chromatids separate and become daughter chromosomes?

a)

metaphase I

b)

anaphase I

c)

metaphase II

d)

anaphase II

e)

telophase II

27.

The process in which haploid gametes are formed in diploid organisms is called:

a)

cytokinesis

b)

interphase

c)

meiosis

d)

mitosis

e)

nuclear division

28.

A human cell containing 44 autosomes and two X chromosomes is...

a)

a somatic cell of a male

b)

a zygote

c)

a somatic cell of a female

d)

a sperm cell

e)

an ovum

29.

Independent assortment is one of the factors that contributes to genetic diversity. Independent assortment is associated with which stage of meiosis?

a)

anaphase I

b)

prophase I

c)

metaphase I

d)

anaphase II

e)

metaphase II

30.

The fertilized egg (zygote) of a human contains how many chromosomes?

a)

1

b)

22

c)

46

d)

23

e)

48

31.

Which cells of the human body are made through the process of meiosis?

a)

gametes

b)

somatic cells

c)

all cells of the body

d)

X and Y chromosomes

e)

autosomes

32.

A _____________ is the complete set of chromosomes of an organism, arranged and displayed in pairs and ordered by size.

a)

genome

b)

karyotype

c)

nucleus

d)

heredity

e)

gene

33.

Which 2 cells would be more genetically similar to each other?

a)

two gametes produced by the same person

b)

two somatic cells produced by the same person

c)

two eggs produced by the same woman

d)

two sperm produced by the same man

34.

If a diploid organism has a genome consisting of 22 chromosomes, its gametes will have _____ chromosomes.

a)

44

b)

11

c)

22

d)

88

e)

19

35.

When does DNA replication occur during meiosis?

a)

interphase

b)

prophase

c)

G1

d)

telophase

e)

meiosis II

36.

The term 'synapsis' is associated with which process?

a)

crossing over

b)

independent assortment

c)

mitosis

d)

anaphase

e)

fertilization

37.

The first stable product of fixation of atmospheric nitrogen in leguminous plants is ?

a)

NO3-

b)

Glutamate

c)

Ammonia

d)

NO2-

38.

Which of the following biomolecules is common to respiration - mediated breakdown of fats , carbohydrates , and proteins?

a)

Fructose 1-6 bisphosphate

b)

Pyruvic acid

c)

Acetyl CoA

d)

Glucose 6 - phosphate

39.

Phytochrome is a

a)

Glycoprotein

b)

Lipoprotein

c)

Chromoprotein

d)

Flavoprotein

40.

In photosynthesis , the light independent reactions takes place at:

a)

Photosystem- II

b)

Stromal matrix

c)

Thylakoid lumen

d)

Photosystem-I

41.

During biological nitrogen fixation , inactivation of nitrogenase by oxygen poisoning is prevented by?

a)

Carotene

b)

Cytochrome

c)

Leghaemoglobin

d)

Xanthophyll

42.

Water soluble pigment found in plant cell vacuoles are;

a)

Chlorophylls

b)

Carotenoids

c)

Anthocyanins

d)

Xanthophylls

43.

A plant in your garden avoids photorespiratory losses , has improved water use efficiency , shows high rate of photosynthesis at high temperatures and has improved efficiency of nitrogen utilisation. In which of the following physiological groups would you assign this plant?

a)

C4

b)

CAM

c)

Nitrogen fixer

d)

C3

44.

Emerson's enhancement effect and Red drophave been instrumental in the discovery of ?

a)

Two photosystems operating simultaneously

b)

Photophosphorylation and cyclic electron transport

c)

Oxidative photophosphorylation

d)

Photophosphorylation and non - cyclic electron transport

45.

In a chloroplast the highest number of protons are found in;

a)

Lumen of thylakoids

b)

Inter membrane space

c)

Antennae complex

d)

Stroma

46.

The process which makes major difference between C3 and C4 plants is ;

a)

Calvin cycle

b)

Photorespiration

c)

Respiration

d)

Glycolysis

47.

Which statement is wrong about Kreb's cycle?

a)

There is one point in the cycle where FAD+ is reduced to FADH2

b)

During conversion of succinyl CoA to succinic acid , a molecule of GTP is synthesised

c)

The cycle starts with condensation of acetyl group (acetyl CoA) with pyruvic acid to yield citric acid

d)

There are three points in the cycle where NAD+ is reduced to NADH + H+

48.

Fruit and leaf drop at early stages can be prevented by the application of;

a)

Ethylene

b)

Auxins

c)

Gibberellic acid

d)

Cytokinins

49.

Phosphoenol pyruvate (PEP) is the primary CO2 acceptor in?

a)

C4 plants

b)

C2 plants

c)

C3 and C4 plants

d)

C3 plants

50.

Which of the following is not a product of light reaction of photosynthesis?

a)

NADPH

b)

NADH

c)

Oxygen

d)

ATP

51.

Stomatal movement is not affected by ;

a)

O2 concentration

b)

CO2 concentration

c)

Light

d)

Temperature

52.

World Ozone Day is celebrated on ;

a)

16th September

b)

22nd April

c)

21st April

d)

5th June

53.

Which of these statements is incorrect?

a)

Glycolysis operates as long as it is supplied with NADthat can pick up hydrogen atoms

b)

Oxidative phosphorylation takes place in outer mitochondrial membrane

c)

Glycolysis occurs in cytosol

d)

Enzymes of TCA cycle are present in mitochondrial matrix

54.

What is the site of perception of photoperiod necessary for induction of flowering in plants?

a)

Shoot apex

b)

Leaves

c)

Lateral buds

d)

Pulvinus

55.

It takes a very long time for pineapple plants to produce flowers. Which combination of hormones can be applied to artificially induce flowering in pineapple plants through the year to increase yield?

a)

Gibberellin and Abscisic acid

b)

Cytokinin and Abscisic acid

c)

Auxin and Ethylene

d)

Gibberellin and Cytokinin

56.

Conversion of glucose to glucose-6- phosphate , the first irreversible reaction of glycolysis , is catalyzed by?

a)

Enolase

b)

Phosphofructokinase

c)

Aldolase

d)

Hexokinase

57.

Opening and closing of stomata takes place due to changes in

a)

turgor pressure of guard cells

b)

plasmolysis of cells

c)

flaccidity of guard cells

d)

wall thickness in guard

58.

Transpiration occurs mainly through

a)

flower bud

b)

epidermis

c)

cuticle

d)

stomata

59.

Guttation is mainly due to

a)

transpiration

b)

imbibition

c)

osmosis

d)

root pressure

60.

Which one of the following is the anti-transpirant

a)

Succinic acid

b)

Phenyl Mercuric Acetate

c)

Acetic acid

d)

Indole Acetic Acid

61.

Name the epidermal cells that surrounds the guard cells of the stoma

a)

mesophyll cells

b)

subsidiary cells

c)

spongy cells

d)

velamen tissue

62.

Which causes increase in the osmotic potential of guard cells causing entry of water ?

a)

Calcium acetate

b)

Potassium chloride

c)

Potassium malate

d)

Calcium sulphate

63.

Which part of mitochondria has high permeability to molecules

a)

inner mitochondrial membrane

b)

inter mitochondrial membrane

c)

Elementary particles

d)

outer mitochondrial membrane

64.

Glycolysis occurs in -----------------------

a)

mitochondria

b)

cytoplasm

c)

chloroplast

d)

endoplasmic reticulum

65.

What is Oxidative phosphorylation?

a)

mechanism for ATP synthesis

b)

mechanism for NADP synthesis

c)

mechanism of respiration

d)

mechanism for starch synthesis

66.

How many ATP molecules are produced on complete oxidation of one molecule of glucose?

a)

38

b)

36

c)

30

d)

34

67.

The products of photosynthesis are

a)

water and carbon dioxide

b)

sugar and water

c)

sugar and oxygen

d)

oxygen and warter

68.

When a photon of light energy reaches a reaction center chlorophyll molecule, what becomes excited?

a)

an electron

b)

an atom of water

c)

a molecule of water

d)

a molecule of water vapour

69.

The difference between P700 and P680 is that

the

a)

concentration of chlorophyll molecules is greater in P700.

b)

P680 is only used in the cyclic electron flow.

c)

P680 is found in algae while P700 is found in land plants.

d)

P700 absorbs light with a wavelength of 700 nm.

70.

The products of the light-dependent reactions of photosynthesis are

a)

sugar and water

b)

sugar and oxygen

c)

ATP, NADPH, and oxygen

d)

ATP and Sugar

71.

Why do plants appear green?

a)

They absorb green light.

b)

They excite electrons which emit green light in the visible spectrum.

c)

They reflect green light

d)

They reflect green light

72.

Name the term which is given for the movement of water through a semipermeable membrane?

a)

Diffusion

b)

Osmosis

c)

Tonicity

d)

Transpiration

73.

Name the condition in which protoplast of the plant cell shrinks away.


a)

Turgid

b)

Plasmolysis

c)

Flaccid

d)

Rigid

74.

Gum swells up in the water due to

a)

Imbibition

b)

Diffusion

c)

Endosmosis

d)

Turgidity

75.

When cell is placed in 0.25 M concentrated sugar solution, there is no change in it. So the external solution is called

a)

Hypertonic

b)

Isotonic

c)

Hypotonic

d)

None of the above

76.

The pressure exerted by the swelling protoplast on the walls of the cell is

a)

Wall pressure

b)

Osmotic pressure

c)

Suction pressure

d)

Turgor pressure

77.

Cyanobacteria are classified under

a)

Protista

b)

Monera

c)

Plantae

d)

Algae

78.

The giant Redwood tree( Sequoia sempervirens) is a / an

a)

Giant fern

b)

Angiosperm

c)

Gymnosperm

d)

Bryophyte

79.

Gemma cup is found in

a)

Marchantia

b)

Salvinia

c)

Selaginella

d)

Funaria

80.

Holdfast, Stipe and frond are usually found in members of

a)

Chlorophyceae

b)

Phaeophyceae

c)

Rhodophyceae

d)

All algae

81.

Which of the following is a Red alga?

a)

Chara

b)

Laminaria

c)

Fucus

d)

Polysiphonia

82.

Which statement about Brown algae is correct?

a)

Reserve food is Floridean starch

b)

Two Equal apical flagella present

c)

Cell wall made of cellulose and algin

d)

Chlorophyll a and d present

83.

Sphagnum is used as a packaging material to transport living plants because (most appropriate)

a)

It is bushy

b)

It lasts long

c)

it is easily available

d)

it retains huge amount of water

84.

Which of the following is not a Pteridophyte?

a)

Salvinia

b)

Equisitum

c)

Polytrichum

d)

Dryopteris

85.

Prothallus is a

a)

sporophytic stage of fern

b)

gametophytic stage of fern

c)

Sporophytic stage of mosses

d)

gametophytic stage of mosses

86.

Conifers have several adaptive features to reduce water loss. Which one of the following is incorrect?

a)

Needle like leaves

b)

thick cuticle

c)

sunken stomata

d)

producing pollen grains

87.

Find the incorrect match from the following pairs i) Psilopsida - Psilotum, ii) Lycopsida - Lycopodium iii) Sphenopsida - Selaginella iv) Pteropsida - Pteris

a)

i)

b)

ii)

c)

iii)

d)

iv)

88.

Which of the following is not a gymnosperm?

a)

Cycas

b)

Gingko

c)

Pinus

d)

Equisetum

89.

While most of the algal species are haplontic, which among the following is haplo-diplontic?

a)

Fucus

b)

Chara

c)

Polysiphonia

d)

Spirogyra

90.

Study the paired combinations on Classification and find out the incorrect pair: i) Artificial system - based on few characteristics ii) Natural system - natural affinities among organisms iii) Phylogenetic - using computers comparing lot of characteristics iv) Cytotaxonomy- chromosome number, structure etc.

a)

i)

b)

ii)

c)

iii)

d)

iv)

91.

Which of the following pairs is a true aquatic fern?

a)

Azolla, Salvinia

b)

Azolla, Selaginella

c)

Azolla, Lycopodium

d)

Salvinia, Equisetum

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