Biology · Science General

Botany and Plant Science

4,989 Questions

Botany and plant science delve into the biological study of plant life, covering structural anatomy, physiological processes, and reproductive mechanisms. Key topics include inflorescence patterns, root modifications, and seed development, which are vital for biology sections in medical entrance exams. This collection of practice questions helps solidify understanding of complex plant functions.

Plant ReproductionPlant AnatomyRoot ModificationsInflorescence PatternsPlant Morphology

Botany and Plant Science Questions

Multiple choice

Winged petiole is found in

  1. babool

  2. pistia

  3. oranges

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

Winged petiole is found in citrus fruits like oranges.

Multiple choice

Spongy petioles are found in

  1. xerophytic plants

  2. aquatic plants

  3. halophytes

  4. insectivorous plants
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Spongy petioles are found in aquatic plants. They help the plants in floating.

Multiple choice

The floral part which produces pollen grain is

  1. sepal

  2. petal

  3. anther

  4. None of these
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

The anther is the male reproductive part of a flower that produces and contains pollen grains. Sepals protect the flower bud, petals attract pollinators, and neither produces pollen.

Multiple choice

Match the following:

 
a. Nastic movement 1. It is the non-directional movement of a plant part, usually petals, in response to light.
b. Thigmonasty 2. It is the movement of a plant part in response to an external stimulus in which the direction of response is not determined by the direction of stimulus.
c. Photonasty 3. It is the non-directional movement of a plant part in response to the touch of an object.

  1. a - 2, b - 1, c - 3

  2. a - 3, b - 1, c - 2

  3. a - 3, b - 2, c - 1

  4. a - 2, b - 3, c - 1

  5. a - 1, b - 3, c - 2
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

This is the correct option. Nastic movement is the movement of a plant part in response to an external stimulus in which the direction of response is not determined by the direction of stimulus. Thigmonasty is the non-directional movement of a plant part in response to the touch of an object. Photonasty is the non-directional movement of a plant part, usually petals, in response to light.

Multiple choice

Septicidal dehiscence takes place

  1. along the middle of each carpel

  2. by pores at the top of each carpel

  3. along the line of carpel union

  4. along a circular horizontal line
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Septicidal dehiscence takes place along the line of carpal union.

Multiple choice

Silk of corn is/are

  1. stamens

  2. style and stigma

  3. bracts

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

The silk of corn are individual style and stigma, which connect to ovule.