NEET NCERT Biology Sexual Reproduction in Flowering Plants model test

Sexual Reproduction in Flowering Plants Mock Test-14

Question No:1

Plants with ovaries having only one or a few ovules are generally pollinated by:

(A) Butterflies
(B) Birds
(C) Wind
(D) Bees

Question No:2

What is the function of germ pore?

(A) Absorption of water for seed germination
(B) Initiation of pollen tube
(C) Release of male gametes’
(D) Emergence of radical

Question No:3

Which one of the following statements is wrong?

(A) Vegetative cell is larger than generative cell
(B) Pollen grains in some plants remain viable for months
(C) Intine is made up of cellulose and pectin
(D) When pollen is shed at two-called stage, double fertilization does not take place

Question No:4

An organic substance that can withstand environmental extremes and cannot be degraded by any enzyme is:

(A) Cuticle
(B) Sporopollenin
(C) Lignin
(D) Cellulose

Question No:5

Even in absence of pollinating agents seed – setting is assure in:

(A) Commellina
(B) Zostera
(C) Salvia
(D) Fig

Question No:6

The coconut water and the edible part of coconut are equivalent to:

(A) Endosperm
(B) Endocarp
(C) Mesocarp
(D) Embryo

Question No:7

Both, autogamy and geitonogamy are prevented in

(A) Papaya
(B) Cucumber
(C) Castor
(D) Maize

Question No:8

The gynoecium consists of many free pistils in flowers of:

(A) Aloe
(B) Tomato
(C) Papaver
(D) Michelia

Question No:9

Which one of the following statements is correct?

(A) Hard outer layer of pollen is called intine
(B) Sporogenous tissue is haploid
(C) Endothecium produces the microcspores
(D) Tapetum nourishes the developing pollen

Question No:10

Advantage of cleistogamy is:

(A) Higher genetic variability
(B) More vigorous off spring
(C) No dependence on pollinators
(D) Vivipary

Question No:11

Perisperm differs from endosperm in:

(A) Being a haploid tissue
(B) Having no reserve food
(C) Being a diploid tissue
(D) Its formation by fusion of secondary nucleus with several sperms

Question No:12

Geitonogamy involves:

(A) Fertilization of a flower by the pollen from another flower of the same plant
(B) Fertilization a flower by the pollen from the same flower
(C) Fertilization of a flower by the pollen from a flower of another plant in the same population
(D) Fertilization of a flower by the pollen from a flower of another plant belonging to a distant population

Question No:13

Male gametophyte with least number of cells is present in:

(A) Pteris
(B) Funaria
(C) Lilium
(D) Pinus

Question No:14

Pollen tablets are available in the market for:

(A) In vitro fertilization
(B) Breeding programmes
(C) Supplementing food
(D) Ex situ conservation

Question No:15

Function of filiform apparatus to:

(A) Recognize the suitable pollen at stigma
(B) Stimulate division of generative cell
(C) Produce nectar
(D) Guide the entry of pollen tube

Question No:16

Non — albuminous seed is produced in:

(A) Maize
(B) Castor
(C) Wheat
(D) Pea

Question No:17

Which one of the following may required pollinators, but genetically similar to autogamy?

(A) Geitonogamy
(B) Xenogamy
(C) Apogamy
(D) Cleistogamy

Question No:18

Which one of the following statements is not true?

(A) Pollen grains are rich in nutrients, and they are used in the form on tablets and syrups
(B) Pollen grains of some plants cause severe allergies and bronchial afflications in some people.
(C) The flowers pollinated by flies and bats secrete foul odour to attract them
(D) Honey is made by bees by digesting pollen collected from flowers

Question No:19

Transmission tissue is characteristic feature of

(A) Hollow style
(B) Solid style
(C) Dry stigma
(D) Wet stigma

Question No:20

Which of the following are the important floral rewards to the animal pollinators?

(A) Colour and large size of flower
(B) Nectar and pollen grains
(C) Floral fragrance and calcium crystals
(D) Protein pellicle and stigmatic

Question No:21

Male gametophyte in angiosperms producers:

(A) Single sperm and a vegetative cell
(B) Single sperm and two vegetative cells
(C) Three sperms
(D) Two sperms and a vegetative cell

Question No:22

Coconut water from a tender coconut is:

(A) Free nuclear endosperm
(B) Innermost layers of the seed coat
(C) Degenerated nucellus
(D) Immature embryo

Question No:23

Which one of the following fruits is parthenocarpic?

(A) Apple
(B) Jackfruit
(C) Banana
(D) Brinjal

Question No:24

Filiform apparatus is characteristic feature of:

(A) Nucellar embryo
(B) Aleurone cell
(C) Synergids
(D) Generative cell

Question No:25

In angiosperms, microsporogeneis and megasporogenesis:

(A) From gametes without further divisions
(B) Involve meiosis
(C) Occur in ovule
(D) Occur in anther