CBSE/NCERT/Exercises/Class_11_Biology
Created by Titas Mallick
Biology Teacher • M.Sc. Botany • B.Ed. • CTET (CBSE) • CISCE Examiner
BioNotesBioNotesCreated by Titas Mallick
Biology Teacher • M.Sc. Botany • B.Ed. • CTET (CBSE) • CISCE Examiner
Online
Exercises and Questions on Plant Kingdom - NCERT Class 11 Biology
Subject: Biology
Class: 11
Topic: Plant Kingdom
Artificial systems of classification were based mainly on: a) Natural affinities b) Evolutionary relationships c) Vegetative characters d) Cytological information
Pyrenoids are found in the chloroplasts of: a) Red algae b) Brown algae c) Green algae d) Mosses
Agar is obtained from: a) Volvox b) Sargassum c) Gelidium d) Dictyota
Which of the following are called 'amphibians of the plant kingdom'? a) Algae b) Bryophytes c) Pteridophytes d) Gymnosperms
The first terrestrial plants to possess vascular tissues are: a) Bryophytes b) Pteridophytes c) Gymnosperms d) Angiosperms
The dominant phase in the life cycle of pteridophytes is: a) Gametophyte b) Sporophyte c) Prothallus d) Zygote
Selaginella and Salvinia are: a) Homosporous b) Heterosporous c) Non-vascular d) Aquatic only
Gymnosperms are called 'naked-seeded' because: a) They have no seeds b) Seeds are not enclosed in fruits c) They have no fruits d) Both b and c
Mycorrhiza is found in the roots of: a) Cycas b) Pinus c) Cedrus d) Sequoia
The smallest angiosperm is: a) Eucalyptus b) Wolffia c) Pinus d) Marchantia
1. What is the basis of classification of algae?
2. When and where does reduction division take place in the life cycle of a liverwort, a moss, a fern, a gymnosperm and an angiosperm?
3. Name three groups of plants that bear archegonia. Briefly describe the life cycle of any one of them.
4. Mention the ploidy of the following:
5. Write a note on economic importance of algae and gymnosperms.
6. Both gymnosperms and angiosperms bear seeds, then why are they classified separately?
7. What is heterospory? Briefly comment on its significance. Give two examples.
8. Explain briefly the following terms:
9. Differentiate between red algae and brown algae.
10. Match the following:
11. Describe the important characteristics of gymnosperms.