NCERT NEETUG Biology Reproduction,Class 11 topic wise MCQs,PDFs

Sexual Reproduction in Flowering Plants Mock Test-8

Question No:1

______ factor is responsible for contact of pollen with stigma in wind and water pollinated plants.

(A) Luck
(B) Chance
(C) Time
(D) Temperature



Question No:2

Enormous amount of pollens are produced in wind and water pollinated plants

(A) To compensate for uncertainties for contact of pollen with stigma.
(B) To compensate for loss of pollen grains
(C) To ensure pollination for large number of ovules present
(D) Both (a) and (b)



Question No:3

Most common abiotic pollinating agent for plant is

(A) Anemophily
(B) Hydrophily
(C) Pollination by bees
(D) Pollination by Ants



Question No:4

Light and non-sticky pollen grains are favourable for

(A) Water-pollinated plant
(B) Wind-pollinated plant
(C) Plants with fatherly sigma
(D) Both (a) and (c)



Question No:5

Which of the following are true for wind-pollinated plants?
(A) Well-exposed statements
(B) Large and often feathery stigma
(C) Single ovule in each ovary
(D) Large no. of flower packed into an inflorosence

(A) Only A
(B) Only B and C
(C) Only C
(D) All are correct



Question No:6

Flowers which are wind pollinated have

(A) Single ovule in one ovary
(B) More than one ovule in ovary
(C) Been packed into an inflorosence
(D) Both (a) and (c)



Question No:7

The tassels of corn cob are

(A) Stigma and style
(B) Meant to trap pollen grains in wind
(C) Both (a) and (b)
(D) All are incorrect



Question No:8

Wind pollination commonly found in

(A) Large trees
(B) Shrubs
(C) Grasses
(D) All of them



Question No:9

Pollination by water is

(A) Rare in flowering plants
(B) Limited to about 30 genera
(C) Most genera are monocotyledons
(D) All are correct



Question No:10

Water is the main medium of transport for male gametes of

(A) Algae
(B) b) Bryophytes
(C) Pteridophyte
(D) All of them



Question No:11

The distribution of pteridophytes and bryophytes is limited to some geographical zones only

(A) Because their spores can germinate in only specific kind of soil only
(B) Because they require water for fertilization
(C) Because they have only specific pollination which are available in narrow geographical range
(D) Only some weather conditions permit fruit formation in them



Question No:12

Which of the following is incorrect for equate plants?
(A) Vallisneria and Hydrilla are fresh water plants pollinated by wind
(B) Zostera a marine grass uses water as its pollinating agent
(C) Water hyacinth and water lily are pollinated by insects or wind.
(D) Most of the aquatic plant flowers emerges out of water and are pollinated by wind or insects.

(A) Only B
(B) Only A
(C) Only A, B, C
(D) All are incorrect



Question No:13

Which one of the following is correct for aquatic plants?

(A) All aquatic plants use water for pollination
(B) Not all aquatic plants use water for pollination
(C) Vallisneria flowers are pollinated by water under the water surface
(D) All are correct



Question No:14

Which one of the following is correct for Vallisneria?
(A) It grows in fresh water
(B) Female flowers or pollen grains reach the surface by long stalk
(C) Male flowers are released on to the surface of water
(D) Pollen grains are carried passively by water currents

(A) Only A
(B) Only A and B
(C) Only A, B and C
(D) A, B, C and D



Question No:15

In water pollinated species
(A) Pollen grains are long and ribbon like
(B) All pollen grains are protected from getting wet
(C) Flowers are not very colourful
(D) They do not produce nectar

(A) Only A and B are correct
(B) Only A and B are wrong
(C) All are correct
(D) All are wrong



Question No:16

Amongst the pollinating agent which one is most dominant?

(A) Butterflies and flies
(B) Bees
(C) Beetles and wasps
(D) Moths and birds



Question No:17

Which of the following is correct in reference to animal pollinated plants?

(A) Butterflies, flies, beetles, wasps, ants, moths and bats are common pollinating agents
(B) Rodents, lizards, and primates are also pollinators in some species
(C) Animal pollinated plants are specifically adapted for particular species
(D) All are correct



Question No:18

Insect pollinated plants are

(A) Large and colourful
(B) Fragrant
(C) Rich in nectar
(D) All are correct



Question No:19

Foul odour secreted by flowers which are pollinated by

(A) Flies and beetles
(B) Wasps and ants
(C) Birds
(D) None of them



Question No:20

The reward produced by plants to their animal visitors is in form of

(A) Nectar
(B) Pollen grain
(C) Both (a) and (b)
(D) None is correct



Question No:21

Which one of the following is correct for animal pollinated plants?

(A) Nectar and pollen grains are usual floral rewards
(B) To harvest the rewards from the flower, animal come in contact with anther and stigma
(C) Animal carrying pollen when come in contact with stigma, it brings about pollination
(D) All are correct



Question No:22

Amorphophallus provide floral rewards in the form of

(A) Providing safe place to lay eggs
(B) Tallest flower
(C) Both are correct
(D) None of them is correct



Question No:23

Which of the following is correct for relationship exists between moth and yucca plant?

(A) Moth and the plant cannot complete their life cycle without each other
(B) Moth deposit egg in the locule of the ovary and the flower and in turn flower gets pollinated by the moth
(C) Larva of the moth comes out of the eggs as the seeds start developing
(D) All are correct



Question No:24

Seed is

(A) Fertilized ovule
(B) Fertilized endosperm
(C) Modification of integument
(D) Formed from Pericarp



Question No:25

Typical seed is consist of

(A) Seed coat
(B) Cotyledon
(C) Embryo axis
(D) All of them