Biology · Environmental Studies

Biology of Insects and Pollination

861 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 biology agricultural management patterns of cropping rotation of crops common irrigation systems

___________ are let out in the fields to destroy pests selectively.

  1. Birds

  2. Insects

  3. Ladybirds

  4. All of the above
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

In biological control method, birds, insects and other living organisms are deliberately let out in fields to selectively kill pests. This becomes an easy method for protecting crops against selective pests.

Multiple choice botany fibre to fabric: plant fibre classification of fibres fibres history of fabric

The rearing of silkworms to obtain silk is called __________:

  1. Sericulture

  2. Horticulture

  3. Agriculture

  4. None of these
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation
$A$
In sericulture,silkworms are cultivated to produced silk. Although there are several commercial species of silkworms, Bombyx Mori (the caterpillar of the domesticated silk moth) is the most widely used and intensively studied silkworm. Silk was first produced in China as early as the Neolithic period.
Multiple choice chemistry introduction to acid and base neutralisations in everyday life acids and bases in daily life neutralisation reaction

Honey bee stings and ant bites can be _________ using alkaline medicine such as baking powder.

  1. acidifies

  2. neutralize

  3. prevented

  4. none of the above
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The venom of honey bee and ant bites are acidic in nature. So, it's effects can be neutralised by bicarbonate of soda such a baking soda or an alkali (basic in nature). 

Multiple choice biology diseases and hygiene anaemia mosquito and human health non communicable diseases

Sting of _______cause allergy.

  1. Butterfly

  2. Grasshopper

  3. Ant

  4. Bee
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation
  • Sting of bee causes allergy.
  • When a bee stings it releases bee venom into the human body which triggers allergic reactions.
  • The bee venom contains proteins which affect the skin cells and triggers the immune system to produce antibodies called Immunoglobulin that results in pain and swelling at the site of the sting.
  • So, the correct answer is 'Bee'.
Multiple choice botany the flower importance of pollination flower: parts of a flower flower and pollination

Pollination by bat is called ______________.

  1. Ornithophily

  2. Chiropterophily

  3. Malacophily

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

Multiple choice botany the flower importance of pollination flower: parts of a flower flower and pollination

_______ flowers have very light weighted pollen grains.

  1. Insect pollinates

  2. Wind pollinated

  3. Water pollinated

  4. Animal pollinated
Reveal answer Fill a bubble to check yourself
B Correct answer
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.

Multiple choice botany the flower importance of pollination flower: parts of a flower flower and pollination

Yucca is pollinated by.

  1. Pronuba Moth

  2. Bumble Bee

  3. Honey Bee

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

Multiple choice botany the flower importance of pollination flower: parts of a flower flower and pollination

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
Reveal answer Fill a bubble to check yourself
B Correct answer
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'.

Multiple choice evs seeds and seeds plant adaptation and modification leaves leaf modification

The ability of the Venus Flytrap to capture insects is due to

  1. Specialized "muscle-like" cells

  2. Chemical stimulation by the prey

  3. A passive process requiring no special ability on the part of the plant

  4. Rapid turgor pressure changes
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Venus Flytrap is an insectivorous plant. It grows in waterlogged soils. Due to waterlogging, the amount of available nitrogen is very less. Hence, it obtains its nitrogen from the insects. Due to this reason, it is also called as the semi-autotrophic or semi-heterotrophic plant. It has leaves with winged petiole attached to it and lamina is modified into two toothed jaws. Each jaw has numerous teeth. Also, the upper surface of each jaw has long sensitive bristles. The upper surface also contains irregularly scattered glands. These bristles are very sensitive to touch stimulus. When an insect comes in contact with these bristles, there is a rapid change in the turgor pressure. This results in the closing of leaf and the insect are captured. 

Thus, the correct answer is 'Rapid turgor pressure changes.'