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Sexual Reproduction in Flowering Plants · Question 66

AIPMT 2015 (Cancelled)MCQEasy📈 Topic in 62% papers+4−1
1

Which one of the following statements is not true?

  1. The flowers pollinated by flies and bats secrete foul odour to attract them.
  2. Honey is made by bees by digesting pollen collected from flowers.
  3. Pollen grains are rich in nutrients and they are used in the form of tablets and syrups.
  4. Pollen grains of some plants cause severe allergies and bronchial afflictions in some people.

Answer

(2) Honey is made by bees by digesting pollen collected from flowers.

Solution

Flowers pollinated by flies and bats secrete foul odours. ⇒ true

As per NCERT, pollen grains are rich in nutrients and pollen tablets/syrups are used as food supplements; pollen of some plants (e.g. Parthenium) causes severe allergies and bronchial afflictions. ⇒ true

Honey is made by bees from the nectar of flowers, not by digesting pollen. ⇒ not true

∴ Statement (2) is not true.

Answer: (2)

AIPMT 2015 (Cancelled)

Keep practising — Sexual Reproduction in Flowering Plants

2

Transmission tissue is characteristic feature of

  1. dry stigma
  2. wet stigma
  3. hollow style
  4. solid style.
AIPMT 2015 (Cancelled)
3

Geitonogamy involves

  1. fertilization of a flower by the pollen from another flower of the same plant
  2. fertilization of a flower by the pollen from the same flower
  3. fertilization of a flower by the pollen from a flower of another plant in the same population
  4. fertilization of a flower by the pollen from a flower of another plant belonging to a distant population.
AIPMT 2014
4

Pollen tablets are available in the market for

  1. in vitro fertilization
  2. breeding programmes
  3. supplementing food
  4. ex situ conservation.
AIPMT 2014
5

Function of filiform apparatus is to

  1. recognize the suitable pollen at stigma
  2. stimulate division of generative cell
  3. produce nectar
  4. guide the entry of pollen tube.
AIPMT 2014
6

Non-albuminous seed is produced in

  1. maize
  2. castor
  3. wheat
  4. pea.
AIPMT 2014
7

Perisperm differs from endosperm in

  1. being a diploid tissue
  2. its formation by fusion of secondary nucleus with several sperms
  3. being a haploid tissue
  4. having no reserve food.
NEET 2013
8

Advantage of cleistogamy is

  1. no dependence on pollinators
  2. vivipary
  3. higher genetic variability
  4. more vigorous offspring.
NEET 2013
9

Megasporangium is equivalent to

  1. nucellus
  2. ovule
  3. embryo sac
  4. fruit.
NEET 2013
10

Which one of the following statements is correct?

  1. Endothecium produces the microspores.
  2. Tapetum nourishes the developing pollen.
  3. Hard outer layer of pollen is called intine.
  4. Sporogenous tissue is haploid.
NEET 2013
11

Animal vectors are required for pollination in

  1. Vallisneria
  2. mulberry
  3. cucumber
  4. maize.
NEET 2013 (Karnataka)

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