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Biology (NEST Practice Test)

Description: Objective type
Number of Questions: 15
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Tags: test 4 Reproduction in Plants Anatomy of Plant Parts Biology and Human Welfare
Attempted 0/15 Correct 0 Score 0

Name the small leaf-like structure present in the middle of the pedicel of a flower.

  1. Stamen

  2. Corolla

  3. Calyx

  4. Pistil

  5. Bractiole


Correct Option: E
Explanation:

It is a small leaf-like structure present in the middle of pedicel of flower.

Which of the following is the receptive spot of a flower?

  1. Style

  2. Petal

  3. Sepal

  4. Stigma

  5. Stamen


Correct Option: D
Explanation:

It is the receptive spot of a flower.

Which of the following is known as the line of dehiscence?

  1. Stomium

  2. Tapetum

  3. Endothecium

  4. Epidermis

  5. Sporoderm


Correct Option: A
Explanation:

It is the thin-walled cell of the annulus.

Name the bacteria which causes meningitis.

  1. Yersinia Pestis

  2. Neisseria meningitidis

  3. Escherichia coli

  4. Salmonella typhi

  5. Mycobaterium tuberculosis


Correct Option: B
Explanation:

It is a bacteria which causes meningitis.

Who is the father of anatomy?

  1. Andreas Vesalius

  2. Xavier Bichat

  3. Hippocrates

  4. Keith Porter

  5. Aristotle


Correct Option: A
Explanation:

He is said to be the father of modern anatomy.

In which of the following does dehiscence of anther take place by irregular breaking of anther wall?

  1. Cassia

  2. Solanum

  3. Najas

  4. Berberidaceae

  5. None of these


Correct Option: C
Explanation:

In this, dehiscence of anther takes place by irregular breaking of anther wall.

Name the species which showed a callose ring in the microsporocyte and some rhomboidal tetrads.

  1. Asclepias

  2. Magnolia

  3. Aristolochia

  4. P. pusillus

  5. Drosera


Correct Option: D
Explanation:

It showed a callose ring in the microsporocyte and some rhomboidal tetrads.

Which of the following is a killed vaccine?

  1. Rubella vaccine

  2. Tetnus toxoid

  3. Rubeolla vaccine

  4. Cholera vaccine

  5. None of these


Correct Option: D
Explanation:

It is a killed vaccine.

Name the part of plant from which disease free plant can be obtained.

  1. Stem

  2. Bark

  3. Node

  4. Vascular tissue

  5. Meristem


Correct Option: C
Explanation:

It is the part of a plant stem from which one or more leaves emerge.

In which of the following is the body of ovule twisted only half way such that degree of curvature is at a right angle to the funicle?

  1. Orthotropous

  2. Anatropous

  3. Hemitropous

  4. Amphitropous

  5. Circinotropous


Correct Option: C
Explanation:

In this, the body of ovule is twisted only half way.

Which of the following is/are function(s) of tapetum?

  1. Secretion of enzymes and hormones

  2. Transportation of nutrients

  3. Production of ubisch bodies

  4. Secretion of special type of protein for pollen to recognise compatibility

  5. All of the above


Correct Option: E
Explanation:

This is the correct option.

In which of the following does pollination take place by symbiotic association?

  1. Vallisneria

  2. Yucca

  3. Bauhinia megalandra

  4. Cannabis

  5. Bougainvillea


Correct Option: B
Explanation:

In this, pollination takes place through symbiotic association.

In which of the following are camphylotropous ovules present?

  1. Capsella

  2. Mustard

  3. Ranunculus

  4. Polygonum

  5. Helianthus


Correct Option: B
Explanation:

Camphylotropous ovule is present in mustard.

Which of the following is propogated by a highly specialised bud called corm?

  1. Ginger

  2. Colocasia

  3. Onion

  4. Potato

  5. Lotus


Correct Option: B
Explanation:

It is propagated by a highly specialised bud called corm.

Which of the following was not present in the primitive atmosphere on Earth?

  1. Oxygen

  2. Carbon monoxide

  3. Ammonia

  4. Hydrogen

  5. Methane


Correct Option: A
Explanation:

It is a life-supporting component of the air.

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