Biology ยท 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

Which of the following is the proper sequence of layers in anther?

  1. Endothecium - Epidermis - Parenchyma - Tapetum

  2. Epidermis - Endothecium - Parenchyma - Tapetum

  3. Epidermis - Parenchyma - Endothecium - Tapetum

  4. Epidermis - Tapetum - Parenchyma - Endothecium
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Endothecium lies below epidermis followed by 1-3 layers of parenchyma cells which are followed by tapetum.

Multiple choice

The testa of the seed develops from

  1. ovary wall

  2. ovule

  3. ovary

  4. inner integument

  5. outer integument
Reveal answer Fill a bubble to check yourself
E Correct answer
Explanation

The outer integument develops into the testa of the seed after fertilisation.

Multiple choice

Which of the following statements is not true?

  1. A gynoecium having free carpels is termed as syncarpous

  2. A gynoecium not having fertile ovules is called pistillode

  3. Ovary is the most important part of the pistil

  4. The chambers inside the ovary are called locules
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

A syncarpous gynoecium has united or fused carpels, while free or separate carpels are called apocarpous. Therefore statement A is indeed false, making it the correct answer to this 'not true' question.

Multiple choice

A family having syngenesious stamens is:

  1. rubiaceae

  2. asteraceae

  3. malvaceae

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

Syngenesious stamens are stamens with their anthers united but filaments free, which is characteristic of the Asteraceae (sunflower) family. Rubiaceae, Malvaceae, and Fabaceae have different stamen arrangements.

Multiple choice

A gynoecium having carpels that are united are called

  1. apocarpous

  2. syncarpous

  3. polycarpellary

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

Syncarpous gynoecium has carpels that are united or fused together. Apocarpous means carpels are free and separate. Polycarpellary means having multiple carpels but doesn't specify fusion.

Multiple choice

Dichasial cyme is formed in:

  1. jasmine

  2. sunflower

  3. clerodendron

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

Dichasial cyme is a type of inflorescence where the terminal flower produces two lateral branches. This arrangement is characteristic of Clerodendrum species. Sunflower (Asteraceae) has different inflorescence types.