Biology

Plant Biology and Classification

1,473 Questions

Plant Biology and Classification deals with the taxonomy, evolution, and morphological features of the plant kingdom. This collection offers practice questions on plant groups, taxonomic hierarchies, and specific plant characteristics. The questions are tailored for students preparing for biology competitive exams.

Plant taxonomyPteridophytesAngiospermsPlant morphologyAlgae and bryophytesClassification systems

Plant Biology and Classification Questions

Multiple choice

Which of the following families consists of bridal wreaths?

  1. Flacourtiaceae

  2. Francoaceae

  3. Fumariaceae

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

Francoa of family the Francoaceae is commonly known as bridal wreaths. Francoa sonchifolia may grow up to one metre high and produce basal clumps of round, deeply lobed, dark green and fuzzy leaves with winged leafstalks.

Multiple choice

Which of the following statements is correct for howellia aquatilis, a small plant of the family Campanulaceae?

  1. The species has high genetic diversity.

  2. It is considered to be a threatened species.

  3. Seeds require water for germination.

  4. Flowers have a prominent corolla.
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

It is correct. Howellia aquatilis is considered to be a threatened species since 1994 because of loss of habitat. It is due to logging, draining and conversion to urban use.

Multiple choice

Directions: Two statements A and B are given below. Read the statements carefully and choose the correct option.

A: Hydrocleys nymphoides is common in water gardens. B: It is persistent in the wilds of Florida and Texas.

  1. Both statements A and B are correct and B is the correct explanation of A.

  2. Both statements A and B are correct and B is not the correct explanation of A.

  3. Both statements A and B are incorrect.

  4. Statement A is incorrect but B is correct.
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Both statements A and B are correct and B is the correct explanation of A. Hydrocleys nymphoides is common in water gardens and probably for this reason, it is persistent in the wilds of Florida and Texas.

Multiple choice

Which of the following is called walking fern?

  1. Lycopodium

  2. Pteridium

  3. Adiantum

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

Adiantum is called walking fern. In Adiantum, new plantlets grow wherever the arching leaves of the parent touch the ground, creating a walking effect. 

Multiple choice

Lichens represent ______.

  1. mutualism

  2. parasitism

  3. commensalism

  4. amensalism

  5. protocooperation
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

In this, both the partners get benefited. Lichen is a composite organism consisting of a fungus (the mycobiont) and a photosynthetic partner (phycobiont) growing together in a symbiotic relationship.

Multiple choice

Which of the following is not a family of angiosperms?

  1. Altingiaceae

  2. Cycadaceae

  3. Platanaceae

  4. Brassicaceae

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

Cycadaceae is an ancient palm like plant closely related to ferns in that fertilization is by means of spermatozoids. It belongs to the family of gymnosperms.

Multiple choice

The tallest plant belongs to

  1. pteridophytes

  2. monocots

  3. angiosperms

  4. gymnosperms

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

The tallest plant belongs to gymnosperms.

Multiple choice

Match the columns:

 
Frog Characteristic
1. Bornean flat-headed frog a. Oxygen deficient water
2. Lake Titicaca frog b. Viviparous
3. Pacific tree frog c. No lungs
4. Nimbaphrynoides d. Onomatopoeic "ribbit"
  1. 1. Bornean flat-headed frog b. Viviparous
    2. Lake Titicaca frog c. No lungs
    3. Pacific tree frog d. Onomatopoeic "ribbit"
    4. Nimbaphrynoides a. Oxygen deficient water
  2. 1. Bornean flat-headed frog c. No lungs
    2. Lake Titicaca frog a. Oxygen deficient water
    3. Pacific tree frog d. Onomatopoeic "ribbit"
    4. Nimbaphrynoides b. Viviparous
  3. 1. Bornean flat-headed frog b. Viviparous
    2. Lake Titicaca frog d. Onomatopoeic "ribbit"
    3. Pacific tree frog a. Oxygen deficient water
    4. Nimbaphrynoides c. No lungs
  4. 1. Bornean flat-headed frog a. Oxygen deficient water
    2. Lake Titicaca frog c. No lungs
    3. Pacific tree frog b. Viviparous
    4. Nimbaphrynoides d. Onomatopoeic "ribbit"
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

This is the correct match.  The fully aquatic Bornean flat-headed frog is the first frog known to lack lungs entirely. The Lake Titicaca frog has adapted to survive in oxygen deficient water. The Pacific tree frog (Pseudacris regilla) produces the onomatopoeic "ribbit" often heard in films. Members of the West African genus Nimbaphrynoides are unique among frogs in that they are viviparous.