Tag: sexual reproduction in plants

Questions Related to sexual reproduction in plants

Plants are able to produce fruits with the help of insects as they are

botany the flower pollination and its types germination sexual reproduction in plants

  1. Help in aestivation

  2. Help in pollination

  3. Help to overcome dormancy

  4. None of the above

Show answer
Correct Option: B
Explanation:

Many flowers produce nectar, a sugary liquid that many insects eat. When an insect lands on a flower to feed, pollen grains stick to its body. As the insect moves to another flower of the same species, these pollen grains are transferred to the flower's stigma and pollination occurs. After pollination, the plants produce fruits.

So, the correct answer is 'Help in pollination',

Some plants having pleasant odour and attractive colours for

botany the flower pollination and its types germination sexual reproduction in plants

  1. Hydrophily

  2. Anemophily

  3. Entomophily

  4. None of the above

Show answer
Correct Option: C
Explanation:

Entomophily is a form of pollination whereby pollen or spores are distributed by insects. These plants attract insects with vibrant colours and pleasant odour.

The flower of which of the following plant is zygomorphic?

botany reproduction in angiospermic plants pollination and its types germination sexual reproduction in plants

  1. Bean

  2. Datura

  3. Mustard

  4. Canna

Show answer
Correct Option: A
Explanation:
A flower can be cut into two equal parts vertically in one direction is called zygomorphic flower.

Bean - zygomorphic flower
Datura - actinomorphic flower
Mustard - actinomorphic flower
Canna - asymmetric flower

So, the correct option is 'Bean'.

Which of the following plant had developed an obligate symbiotic relationship with a moth called Tagetecula, in relation to pollination

botany the flower pollination and its types germination sexual reproduction in plants

  1. Amorphophallus

  2. Ficus

  3. Salvia

  4. Yucca

Show answer
Correct Option: D
Explanation:

Yucca plant has developed an obligate symbiotic relationship with a moth called Tagetecula, in relation to pollination. Neither the yucca or the moth can survive without the other. The moth’s larvae depend on the seeds of the yucca plant for food, and the yucca plant can only be pollinated by the moth. 


So, the correct option is 'Yucca'.

Select erroneous pair


(A) Sweet potato - Bisexual flower
(B) Castor - Endospermic seed
(C) Vallisneria - Monoecious
(D) Zostera - Hypo hydrophily
(E) Poppy - multi carpellary apocarpous gynoecium.

biology the flower pollination and its types germination sexual reproduction in plants

  1. A & B

  2. B & D

  3. C & E

  4. A & D

Show answer
Correct Option: A

................... is not unisexual flower.

biology the flower pollination and its types germination sexual reproduction in plants

  1. Coconut

  2. Papaya

  3. Gulmohar

  4. Water-melon

Show answer
Correct Option: C
Explanation:

Unisexual flowers only have either the gynoecium or the androecium. Example of unisexual flowers are : Coconut, Papaya, Watermelon.

Bisexual flowers have both gynoecium and androecium.
Examples of bixesual flowers are : Hibiscus, Gulmohar, etc.
So the correct answer is ' Gulmohar'.

Bisexual flowers are found in?

biology the flower pollination and its types germination sexual reproduction in plants

  1. Raceme and catkins

  2. Spike and spikelet's

  3. Corymb and spadix

  4. Catkins and spadix

Show answer
Correct Option: A

Which of the following is not an unisexual flower ? 

biology the flower pollination and its types germination sexual reproduction in plants

  1. Coconut

  2. Papaya

  3. Gulmohor

  4. Maize

Show answer
Correct Option: C
Explanation:

 A flower that possesses either stamens or carpels but not both. are called a unisexual flower. coconut, maize, and papaya are unisexual flowers because at their development stage they either posses stamen or carpels. so, 'the correct option is Gulmohar'.

Choose odd one w.r.t. sexuality.

biology the flower pollination and its types germination sexual reproduction in plants

  1. Coconut

  2. Cucurbits

  3. Chara

  4. Papaya

Show answer
Correct Option: D
Explanation:

Monecious Plants (mono meaning one) have male and female reproductive organs on the same plant. In other words, they are hermaphrodites. The organs may or may not be on the same flower (i.e. the flowers can be perfect or imperfect. Eg. Coconut, cucurbits, chara, etc. 

Dioecious Plants (di meaning two) have either male OR female flowers (not both). As a result, plants are either male OR female. Imperfect flowers only. Eg. Papaya, cannabis, etc. 

So, the correct option is 'Papaya'. 

Flowers which have stamens and pistils are called as

biology the flower pollination and its types germination sexual reproduction in plants

  1. Incomplete flowers

  2. Complete flowers

  3. Unisexual flowers

  4. Homosexual flowers

Show answer
Correct Option: B
Explanation:

  1. A flower that lacks one or two of the four whorls is an incomplete flower.
  2. A complete flower has all four whorls calyx, corolla, stamens, and pistil are present.
  3. A unisexual flower has one of the reproductive organ either stamen or pistil is present.
  4. Homosexual flowers are not probable
So the correct option is "Complete flowers".