Tag: pollination, fertilization and development of endosperm and embryo

Questions Related to pollination, fertilization and development of endosperm and embryo

The association between ants and some members of family rubiaceae is 

botany pollination, fertilization and development of endosperm and embryo agents of pollination environmental conservation and biodiversity pollination and fertilization

  1. Ornithophily

  2. Entomophily

  3. Myrmecophily

  4. Anemorphily

Show answer
Correct Option: C
Explanation:

Myrmecophily is the symbiotic relationship of ants and plants in which the ants get food and place to stay while plants get a pollinator or a method of seed diepersal. It is widely used by family Rubiaceae which is a family of coffee.

So the correct option is 'Myrmecophily'.

Large stout, nocturnal flowers producing copious nectar and emitting fermenting fruity odor, are the adaptations for.

botany pollination, fertilization and development of endosperm and embryo agents of pollination environmental conservation and biodiversity pollination and fertilization

  1. Entomophily

  2. Ornithophily

  3. Chiropterophily

  4. Anemophily

Show answer
Correct Option: C
Explanation:
Pollination occurs through bats is called chiropterophily and flower is called a chiropterophilous flower. Adaptations in chiropterophilous flower :
1. Flowers open during evening or night. 
2. Flowers are large, dull colored and have a strong scent like that of rotting fruits. 
3. Flowers produce abundant pollen grains. 
4. Flowers produce copious nectar.
5. Flowers are tough so that bats can hold on the flowers.
So the correct option is "Chiropterophily".

Which one is absent in windy areas

botany pollination, fertilization and development of endosperm and embryo agents of pollination environmental conservation and biodiversity pollination and fertilization

  1. Birds

  2. Anemophilous plants

  3. Zoophilous plants

  4. Insects

Show answer
Correct Option: C
Explanation:

Windy areas are favorable for plants in which pollination is done by the wind like corn, willow etc while it is unfavorable for those in which pollination is done by animals as it is very difficult to survive.

So the correct option is 'Zoophilous plants'.

Pollination by bats is called as

botany pollination, fertilization and development of endosperm and embryo agents of pollination environmental conservation and biodiversity pollination and fertilization

  1. Chiropterophily

  2. Omithophily

  3. Malacophily

  4. Entomophily

Show answer
Correct Option: A
Explanation:
Pollination by bats is called as Chiropterophily. Flowers that are pollinated by this mechanism usually are usually pale and nocturnal. The advantage of pollination by bats is that they do long distance dispersal of pollen along with depositing huge amount of pollen on the stigmas.
So, the correct answer is, 'Chiropterophily'.

Animals assist with

botany pollination, fertilization and development of endosperm and embryo agents of pollination environmental conservation and biodiversity pollination and fertilization

  1. Pollination and seed dispersal

  2. Control of plant growth and response

  3. Translocation of organic nutrients

  4. Asexual propagation of plants

Show answer
Correct Option: A
Explanation:

Pollination is when pollen grains from an anther, the male portion of a flower, are transferred to a female part in the flower, known as the stigma. Zoophily is a form of pollination whereby pollen is transferred by animals. Zoophilous species frequently evolve mechanisms to make themselves more appealing to the particular type of pollinator. Seed dispersal is the movement or transport of seeds away from the parent plant. Plant species transported externally by animals can have a variety of adaptations for dispersal, including adhesive mucus, and a variety of hooks, spines and barbs

So, the correct answer is 'pollination and seed dispersal'

Myrmecophily is characterised by 

botany pollination, fertilization and development of endosperm and embryo agents of pollination environmental conservation and biodiversity pollination and fertilization

  1. Plants harbouring ants

  2. Plants storing food underground

  3. Plants imitating the habit of animals

  4. Plants with small leaves

Show answer
Correct Option: A
Explanation:

Myrmecophily is the symbiotic relationship between plant and ants in which plants provide food to plant or place to hide eggs and ants help them in pollination. 

So the correct option is 'Plants harbouring ants'

Pollination by insects is called

biology pollination and fertilization agents of pollination environmental conservation and biodiversity pollination, fertilization and development of endosperm and embryo

  1. Entomophily

  2. Chiropterophily

  3. Anemophily

  4. Zoophily

Show answer
Correct Option: A
Explanation:

Pollination by insects is entomophily. Insects are the most common biotic agents of pollination. Bees are the most common insect which acts as pollinating agents. Other insect pollinators are butterflies, flies, beetles, wasps, ants, moths. Flowers are brightly colored and scented to attract the insects. Majority of insect-pollinated flowers are large-sized. Entomophily occurs in Calotropis, Ficus, Salvia, etc.

Pollen grains have spiny exine to aid in

biology pollination and fertilization agents of pollination environmental conservation and biodiversity pollination, fertilization and development of endosperm and embryo

  1. Entomophily

  2. Anemophily

  3. Ornithophily

  4. Cheiropterophily

Show answer
Correct Option: A
Explanation:
• Entomophily is the pollination of flowers by means of insects.
• Anemophily is the pollination of flowers by means of wind.
• Ornithophily is the pollination of flowers by means of birds.
• Chiropterophily is the pollination of flowers by means of bats.
The pollen grains which have spiny exine are related to Entomophily i.e. pollination by insects. Spines help in the attachment of the pollen to the body of pollinators. This, pollen grains have spiny exine to aid in Entomophily.
So, the correct answer is A.

In entomophily, pollinating agents are

biology pollination and fertilization agents of pollination environmental conservation and biodiversity pollination, fertilization and development of endosperm and embryo

  1. Insects

  2. Bats

  3. Birds

  4. Ants

Show answer
Correct Option: A
Explanation:

In entomophily, insects are the pollinating agents. Insects are the most common biotic agents of pollination. Bees are the most common insect which acts as pollinating agents. Other insect pollinators are butterflies, flies, beetles, wasps, ants, moths. Majority of insect-pollinated flowers are large-sized. These flowers are scented, colorful and fragrant and contain nectaries to attract insects. 

Hence, option A is the correct answer.

Hydrophily occurs in
biology pollination and fertilization agents of pollination environmental conservation and biodiversity pollination, fertilization and development of endosperm and embryo

  1. Nymphaea

  2. Nelumbo

  3. Eichhornia crassipes

  4. Vallisneria/ Zostera

Show answer
Correct Option: D
Explanation:
Hydrophily is pollination of flowers by means of water. Example Zostera. 
When pollination occurs by water in the plants floating on the surface of the water, it is called Ephydrophily. Example Vallisneria.
In Zostera, long needle-shaped pollens are produced which float in the water. The female flower produces long structure from the stylar stigmatic region which extends to the water surface and coils around the pollen grain and pulls it underwater and thus, pollination occurs.
In Vallisneria, the male flowers detach on maturity and float on the surface of the water while the female flowers grow under water and they come up to the surface with the help of their thin long stalk. As the stalk grows further, the flowers which were vertical become horizontal and thus, a cup-like depression is formed around the female flower. The male flowers which are floating on the surface of the water, fall into the cup and due to jerk, the anthers dehisce and pollens are transferred to the stigma and thus, pollination occurs on the surface of the water. 
Hence, hydrophily occurs in Vallisneria and Zostera.
So, the correct answer is D.