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

The aquatic fern, which is an excellent biofertiliser, is

  1. marsillia

  2. salvinia

  3. azolla

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

Azolla is an aquatic fern that lives in a symbiotic relationship with the nitrogen-fixing cyanobacterium Anabaena azollae, making it an effective biofertilizer for paddy fields.

Multiple choice

Taxonomy based on secondary metabolites is

  1. phenetic taxonomy

  2. experimental taxonomy

  3. chemataxonomy

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

Chemotaxonomy is based on secondary metabolites. Chemotaxonomy is the method of biological classification based on similarities in the structure of certain compounds among the organisms being classified.

Multiple choice

Sporophyte is parasitic on gametophyte in

  1. bryophytes

  2. pteridophytes

  3. green algae

  4. none of the above
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

In bryophytes, the sporophyte is physically attached to and nutritionally dependent on the gametophyte, making it parasitic.

Multiple choice

Bryophytes are also called

  1. non vascular cryptogams

  2. non vascular embryophytes

  3. vascular cryptogames

  4. vascular embryophytes
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

 Cryptogams include algae, fungi, bacteria, bryophytes, etc. All these groups together are also known as non-vascular cryptogams, i.e. they do not have well developed vascular system.

Multiple choice

John Ray introduced the concept of

  1. two-kingdom classification

  2. monocotyledons and Dicotyledons

  3. species

  4. both (2) and (3)
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

 John Ray was the first to give a biological definition of the term species.He also gave the concept of  monocotyledons and dicotyledons.

Multiple choice

Taxonomy is a science dealing with the

  1. classification of all living organisms

  2. classification of plants

  3. structure and function of living organism

  4. identification , nomenclature and classification of all living organisms
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Taxonomy is the branch of science concerned with the classification, identification, and naming (nomenclature) of living organisms.

Multiple choice

Which of the following shows haplontic life cycle?

  1. Ulothrix

  2. Funaria

  3. Selaginella

  4. Pinus
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The life cycle in which only zygote has diploid structure and all others are haploid, which are alternate to each other, is called haplontic life cycle.