Biology ยท Science General

Botany and Plant Science

5,038 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 correctly defines an actinomorphic flower?

  1. A flower that can be cut into two equal halves by any plane.

  2. A flower that can be divided into two equal halves only by one plane.

  3. A flower that cannot be divided into two equal halves.

  4. A flower that have many tiny florets.

  5. A flower that can only be divided laterally into two equal halves.
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

When a flower can be cut into two equal halves by any vertical section passing through the centre, it is called actinomorphic flower.

Multiple choice

_________ is not true about a mustard plant.

  1. Bicarpellary

  2. Gamosepalous

  3. Hypogynous flowers

  4. Racemose inflorescence

  5. Actinomorphic flower
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The sepals of a mustard flower are free from each other. Hence, they are called polysepalous.

Multiple choice

Which of the following plants shows epigyny?

  1. Citrus

  2. Rose

  3. Mustard

  4. Cucumber

  5. China rose
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

If ovary is present below the level of attachment of three whorls, it is called inferior ovary and the condition is called epigyny and it is shown by cucumber and sunflower.

Multiple choice

Directions: This question presents a sentence, all or part of which is underlined. Beneath the sentence you will find five ways of phrasing the underlined part. The first of these repeats the original; the other four are different. If you think the original is best, choose the first answer; otherwise choose one of the others.

Self-pollination occurs when pollen from one flower pollinates the same flower or other flowers of the same individual; by contrast, cross-pollination occurs when pollen is delivered to a flower from a different plant.

  1. by contrast, cross-pollination occurs when pollen is delivered to a flower from a different plant

  2. in contrast, cross-pollination occurs when pollen from one flower is delivered to a flower from a different plant

  3. in contrast, cross-pollination occurs when a flower on a different plant receives the pollen

  4. by contrast, when pollen is delivered to a flower from a different plant, cross-pollination occurs

  5. different than cross-pollination which occurs when pollen is delivered to a flower from a different plant
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Correct. The option removes the Error of Unidiomatic Expression and the Error of Parallelism.

Multiple choice

The national flower of India is

  1. Rose

  2. Sunflower

  3. Lotus

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

Lotus (Nelumbo nucifera) is India's national flower, officially adopted in 1950. It symbolizes purity, spirituality, and cultural heritage, often depicted in Indian art and religion.