Biology

Plant Biology and Classification

1,796 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

Green data book containing a list of�

  1. Rare plant species

  2. Rare plants and animals

  3. Endangered plants

  4. Extinct animal only
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The Green Data Book lists rare plant species. The Red Data Book is associated with threatened or endangered plants and animals, so the broader options do not fit.

Multiple choice

The gynoecium is inferior in

  1. hypogynous condition

  2. perigynous condition

  3. epigynous condition

  4. cup-shaped perigynous condition

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

In epigynous condition, ovary is inferior and other floral organs are superior.

Multiple choice

Which of the following is not a characteristics of plants?

  1. Plants have autotrophic mode of nutrition.

  2. Reserve food of plants is glycogen and fat.

  3. Plants do not contain sense organs and nervous system.

  4. Response to external stimuli is slow.

  5. Plants do not contain excretory organs.

Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

This is the correct option as this is not a characteristic of plants. Reserve food of plants is not glycogen and fat, but is starch and oil.

Multiple choice

The smallest taxon is called

  1. class

  2. order

  3. genus

  4. species
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

In the taxonomic hierarchy (Kingdom, Phylum, Class, Order, Family, Genus, Species), species is the smallest and most basic taxonomic unit. A species consists of organisms that can interbreed and produce fertile offspring. Genus, order, and class are progressively higher taxonomic categories that contain multiple species.

Multiple choice

Match the following:

a. Species 1. It is represented by a group of related genera that are more similar to each other than with the genera of other families.
b. Family 2. It includes all organisms who share a set of distinguishing common characters.
c. Kingdom 3. It is a group of similar organisms that are able to breed together and produce fertile offsprings.

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

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

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

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

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

This is the correct option. 

Multiple choice

Consider the following statements:In fern plants,

  1. vascular system is absent
  2. reproductive organs are multicellular Which of the statements given above is/are correct?

  1. 1 only

  2. 2 only

  3. Both 1 and 2

  4. Neither 1 nor 2
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Statement 2 is correct - ferns have multicellular reproductive organs (archegonia and antheridia), which distinguishes them from more primitive plants like mosses. Statement 1 is incorrect - ferns DO have a vascular system (xylem and phloem) for transporting water and nutrients, which is why they can grow larger than non-vascular plants. This makes them vascular plants (Pteridophytes).