Tag: the flower

Questions Related to the flower

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

  1. Coconnut

  2. Papaya

  3. Gulmohar

  4. Watermelon


Correct Option: C
Explanation:

The flowers wherein both the sex-organs, that is, the stamen and the pistil are present is called the bisexual or the hermaphroditic flowers. Those flowers wherein, only one of the sex-organ is present and the other is rudimentary absent, are called uni-sexual flowers. These can be pistillate when only pistil is present and can be staminate when only stamen is present.

Gulmohar is not unisexual. It is a bisexual flower.
So, the correct answer is 'Gulmohar'

Which of the following plants have unisexual flowers?

  1. Datura

  2. Hibiscis

  3. Rose

  4. Papaya


Correct Option: D
Explanation:
  • Hibiscus, Rose, and Datura have bisexual flowers with both stamens and carpel.
  • Papaya has unisexual flowers, male flowers, and female flowers are on separate plants.
  • So, the correct answer is 'Papaya'.

Caruncle is derived from

  1. Peduncle

  2. Cotyledon

  3. Outer integument

  4. Inner integument


Correct Option: C
Explanation:
In plants,Caruncle is an outgrowth near the hilum on the seeds of some plants of family Euphorbiaceae (like Hevea ). Outer integument is the outermost part of the ovule . During development of the ovule, the outer integument differentiates into different layers of seed coat. Caruncle is also derived from outer integument.
So, the correct option is 'Outer integument'

Pea nut or ground nut oil is obtained from

  1. Lathyrus odoratus

  2. Pisum sativum

  3. Arachis hypogea

  4. Brassica juncea


Correct Option: C
Explanation:

Peanut (Arachis hypogaea) oil is the refined fixed oil obtained from the seed kernels of Arachis hypogaea. Hydrogenated peanut oil, peanut acid, and peanut glycerides are all derived from peanut oil. It is light yellow-colored oil and extremely stable, with nourishing and protective properties.

Pollination characteristically occurs in?

  1. Angiosperms only

  2. Pteridophytes, Angiosperms

  3. Gymnosperms, Angiosperms

  4. Bryophytes, Pteridophytes, Gymnosperms, Angiosperms


Correct Option: A

Pollen kitt is present in

  1. Anemophilly

  2. Entamophily

  3. Malacophilly

  4. Zoophilly


Correct Option: B

Pollination by bat is called ______________.

  1. Ornithophily

  2. Chiropterophily

  3. Malacophily

  4. Anemophily


Correct Option: B
Explanation:

  • Ornithophily means bird pollination,  is the pollination of flowering plants by birds.
  • Pollination done by Bats is known as chiropterophily. Various fruits are dependent on bats for pollination, such as mangoes, guavas, and banana. Bat pollination is an essential process in tropical communities with 500 tropical plant species. They are completely, or partially, dependent on bats for pollination.
  • Malacophily refers to pollination by snails.
  • Anemophily or wind pollination refers to a form of pollination whereby pollen is distributed by wind.

So, The correct answer is option B

_______ flowers have very light weighted pollen grains.

  1. Insect pollinates

  2. Wind pollinated

  3. Water pollinated

  4. Animal pollinated


Correct Option: B
Explanation:

The pollen grains which are very light in weight can be passed on by wind from one flower to another or to the stigma of the same flower. This is known as wind pollination. They produce light weight pollens in large number and do not produce vector. The stigma is sticky.

Yucca is pollinated by.

  1. Pronuba Moth

  2. Bumble Bee

  3. Honey Bee

  4. Butterfly


Correct Option: A
Explanation:

Yucca is the pollinated by a moth known as the Tegeticulla yuccasella.  Each spring, adult moths emerge from the underground cocoons. And the males and females meet up with each other on Yucca plants for mating.

The Yucca moth is also termed as the pronuba moth. It is a small white moth that lives in the semi-arid habitats where Yucca plants grow.

Thus the correct answer is A.

Choose the correct answers from the alternatives given.
Cheiropteriphily is the name given to pollination by

  1. birds

  2. bats

  3. insects

  4. aquatic animals


Correct Option: B
Explanation:

Bat-pollinated flowers tend to be large and showy, white or light coloured, open at night and have strong musty odours. They are often large and bell-shaped or a ball of stamens. Flowers are typically borne away from the trunk or other obstructions. More than 500 species of plants, spanning 67 plant families, are pollinated by bats. This pollination syndrome is known as chiropterophily. In general, flowers that use this approach tend to be white or dull in colour, open at night, rich with nectar, and musty or rotten smell. 

So, the correct option is, 'bats'.