Biology · Environmental Studies

Biology of Insects and Pollination

830 Questions

Insect biology and pollination focus on ecological relationships, crop science, and practical applications like apiculture. These topics regularly appear in general science sections of competitive exams. Review core concepts to build accuracy for test day.

Apiculture and honeyTypes of pollinationInsect binomial nomenclatureCrop damaging pestsFriend of farmers organism

Biology of Insects and Pollination Questions

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

Hovering birds pollinate

  1. Bignonia

  2. Peepal

  3. Magnolia

  4. Bougainvillea
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation
Hovering birds are the hummingbirds that are the most common flower-visiting birds and are attracted to bright colored flowers that produce nectar. These birds have a long beak and they do not sit on the flower, they hover over it. The flowers of such plants hang (are pendent) so that birds can hover over it and insert the beak in the flower. This type of pollination by means of birds is called ornithophily. The example is which is pollinated by hummingbirds, i.e. Bignonia.
So, the correct answer is A.
Multiple choice botany pollination, fertilization and development of endosperm and embryo agents of pollination environmental conservation and biodiversity pollination and fertilization

Ornithophily is pollination by

  1. Humans

  2. Wind

  3. Birds

  4. Bat
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation
Pollination by humans can occur mechanically only .
Pollination which occurs by means of wind is called Anemophily.
Pollination which occurs by means of birds is called Ornithophily.
Pollination which occurs by means of bats is called Cheiropterophily.
So, the correct answer is C.
Multiple choice botany pollination, fertilization and development of endosperm and embryo agents of pollination environmental conservation and biodiversity pollination and fertilization

A plant pollinated by bats is

  1. Ophrys

  2. Salvia

  3. Kigellia

  4. All of the above
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation
Pollination of flowers which occurs by means of bats is called Chiropterophily. Example of plant pollinated by a bat is Kigelia (also known as sausage tree) which is pollinated by the bat Micropterus. Salvia has a turnpipe mechanism of pollination and is pollinated by bee. Ophrys is pollinated by a moth Colpa aurea (hairy wasp) and they both possess a relationship of pseudocopulation.
So, the correct answer is C.
Multiple choice botany pollination, fertilization and development of endosperm and embryo agents of pollination environmental conservation and biodiversity pollination and fertilization

Bees are important to agriculture as they.

  1. Produce wax

  2. Perform pollination

  3. Prevent pollination

  4. Produce honey
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Bees are the most important pollinators for many agricultural crops, facilitating the transfer of pollen necessary for fruit and seed production.

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

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

  1. Entomophily

  2. Ornithophily

  3. Chiropterophily

  4. Anemophily
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Chiropterophily is pollination by bats. Flowers pollinated by bats are typically large, nocturnal, produce copious nectar, and emit strong odors to attract bats.

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

The association between ants and some members of family rubiaceae is 

  1. Ornithophily

  2. Entomophily

  3. Myrmecophily

  4. Anemorphily
Reveal answer Fill a bubble to check yourself
C Correct answer
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'.

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

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

  1. Entomophily

  2. Ornithophily

  3. Chiropterophily

  4. Anemophily
Reveal answer Fill a bubble to check yourself
C Correct answer
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".
Multiple choice botany pollination, fertilization and development of endosperm and embryo agents of pollination environmental conservation and biodiversity pollination and fertilization

Pollination by bats is called as

  1. Chiropterophily

  2. Omithophily

  3. Malacophily

  4. Entomophily
Reveal answer Fill a bubble to check yourself
A Correct answer
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'.
Multiple choice biology pollination and fertilization agents of pollination environmental conservation and biodiversity pollination, fertilization and development of endosperm and embryo

Pollination by insects is called

  1. Entomophily

  2. Chiropterophily

  3. Anemophily

  4. Zoophily
Reveal answer Fill a bubble to check yourself
A Correct answer
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.

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

In entomophily, pollinating agents are

  1. Insects

  2. Bats

  3. Birds

  4. Ants
Reveal answer Fill a bubble to check yourself
A Correct answer
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.

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

Which pollinating agents is responsible to bring about $80\%$ of pollination?

  1. Insects

  2. Water

  3. Humans

  4. Wind
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation
  • About 80 percent of all plant pollination is biotic i.e it is carried out by insects such as bees, wasps, and birds.
  • The remaining 20 percent of abiotically pollinated species, 98 percent is by wind pollination and 2 percent by water pollination.
Multiple choice biology pollination and fertilization agents of pollination environmental conservation and biodiversity pollination, fertilization and development of endosperm and embryo

The pollination is ......... in eel grass

  1. Hydrophilous

  2. Zoophilous

  3. Entomophilous

  4. Anemophilous
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

A tethered structure of the eel grass flower draws in free sailing male flowers for pollination by forming a dimple on water surface. The female flower is also blown by the wind, but it is anchored by its stem. As the breeze tugs at it, so its stem pulls it lower in the water, creating a dimple in the surface. The male ship, moving freely, sails into the dimple, toboggans down its slope and collides so violently with the female flower that the pollen is knocked out of its anthers. The female flower, having achieved fertilization, then closes.

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

Underwater, pollination occurs in

  1. Zostera

  2. Nymphaea

  3. Vallisneria

  4. None of the above
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Hydrophily includes plants which are pollinated inside the water. Zostera marina is a submerged marine perennial. The pollen is exceptionally long and needle like. Specific gravity of these pollen is almost the same as that of sea water. Consequently, they can freely float in water any depth. The stigma is also very long in this plant. If the pollen comes in contact with the stigma, it coils around water. 

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

Bees are very important for agriculturists as .................

  1. They give bees wax

  2. They are agents for pollination

  3. Are agents to carry fruits

  4. Produce honey
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The most recognized pollinators are the various species of bees, which are plainly adapted to pollination. Bees typically are fuzzy and carry an electrostatic charge. Both features help pollen grains adhere to their bodies but they also have specialized pollen carrying structures; in most bees takes the form of a structure known as scopa, which is on the hind  legs of most bees, and or the lower abdomen made up of thick plumose setae. Honey bees, bumblebees and their relatives do not have a scopa, but the hind leg is modified into a struture called the corbicula. Most bees gather nectar, a concentrated energy source and pollen, which is high protein food, to nurture their young and inadvertently transfer some among the flowers as they are working.