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

Opuntia is an example of __________.

  1. Phylloclade

  2. Cladodes and Cladophylls

  3. Bulbil

  4. Stem Thorn

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

A phylloclade is a flattened stem of several internodes functioning as a leaf. In Opuntia the stem is modified into a green flattened structure called Phylloclade. On the surface of the phylloclade, clusters of spines are formed. These spines are the modified leaves of the auxilliary bud. These spines not only check the rate of transpiration but also protect the plant from herbivores. The phylloclade has distinct nodes and internodes. E.g., Opuntia.

Multiple choice

Tracheids are long and thin ______shaped cells.

  1. tube

  2. spindle

  3. needle

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

Tracheids are elongated cells with tapered ends, resembling spindles. This shape facilitates water movement between cells through pits in their walls.

Multiple choice

What is the method of arranging organisms into groups or sets on the basis of similarities and differences called?

  1. Nomenclature

  2. Classification

  3. Binomial nomenclature

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

(i) Nomenclature is a procedure of assigning names to the kinds and groups of organisms listed in a taxonomic classification. (ii) Classification deals with arranging of organisms into groups or categories on the basis of similarities, differences and relationships. (iii) Taxonomy is a branch of biology which deals with the study of rules and procedures of classification, nomenclature and identification.  

Multiple choice

What are Cryptogams?

  1. Flowering plants

  2. Flowerless, seedless plants

  3. Most primitive, simple plants with undifferentiated body

  4. Seed bearing plants
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

2

Multiple choice

During practicals, students were asked to identify all the Chlorophycea from the group of algae displayed. Which of the following belonged to this group?

Chlamydomonas, Fucus, Ulothrix, Geledium, Spirogyra and Chara

  1. Chlamydomonas, Fucus and Ulothrix

  2. Geledium, Spirogyra and Chara

  3. Fucus, Ulothrix and Geledium

  4. Chlamydomonas, Ulothrix, Spirogyra and Chara

  5. Fucus, Chara, Geledium and Spirogyra
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Yes, it is the correct answer as all of these algae belong to the Chlorophyceae class.