Please refer to Plant Kingdom Class 11 Biology Important Questions with answers below. These solved questions for Chapter 3 Plant Kingdom in NCERT Book for Class 11 Biology have been prepared based on the latest syllabus and examination guidelines issued by CBSE, NCERT, and KVS. Students should learn these solved problems properly as these will help them to get better marks in your class tests and examinations. You will also be able to understand how to write answers properly. Revise these questions and answers regularly. We have provided Notes for Class 11 Biology for all chapters in your textbooks.

Important Questions Class 11 Biology Chapter 3 Plant Kingdom

NCERT Exemplar Problems

Question. Cyanobacteria are classified under:
a. Protista
b. Plantae
c. Monera
d. Algae

Question. Holdfast, stipe and frond constitutes the plant body in case of:
a. Rhodophyceae
b. Chlorophyceae
c. Phaeophyceae
d. All of these

Question. A prothallus is:
a. A structure in pteridophytes formed before the thallus develops
b. A sporophytic free living structure formed in pteridophytes
c. A gametophyte free living structure formed in pteridophytes
d. A primitive structure formed after fertilisation in pteridophytes.

Question. The embryo sac of an angiosperm is made up of:
a. 8 cells
b. 7 cells and 8 nuclei
c. 8 nuclei
d. 7 cells and 7 nuclei

Question. Protonema is:
a. Haploid and is found in mosses
b. Diploid and is found in liverworts
c. Diploid and is found in pteridophytes
d. Haploid and is found in pteridophytes

Past Year Questions

Question. Read the following statements (A-E) and answer the question which follows them:
A. In liverworts, mosses, and ferns gametophytes are free-living.
B. Gymnosperms and some ferns are heterosporous.
C. Sexual reproduction in Fucus, Volvox and Albugo is oogamous.
D. The sporophyte in liverworts is more elaborate than that in mosses.
E. Both, Pinus and Marchantia are dioecious.
How many of the above statements are correct?
a. Four
b. One
c. Two
d. Three

Question. Consider the following four statements whether they are correct or wrong?
A. The sporophyte in liverworts is more elaborate than that in mosses.
B. Salvinia is heterosporous.
C. The life-cycle in all seed bearing plants is diplontic
D. In Pinus male and female cones are borne on different trees.
The two wrong statements together are
a. Statements (B) and (C)
b. Statements (A) and (B)
c. Statements (A) and (C)
d. Statements (A) and (D)

Question. Examine the figure A, B, C and D. In which one of the options all the items are correct?

A	B	C	D
a. Chara	Marchantia	Fucus	Pinus
b. Equisetum	Ginkgo	Selaginella	Lycopodium
c. Selaginella	Equisetum	Salvinia	Ginkgo
d. Funaria	Adiantum	Salvinia	Riccia

Question. Gametophytes does not have free independent existence in:
a. Funaria
b. Polytrichum
c. Cedrus
d. Dryopteris

Question. Which set contains flagellated male gametes:
a. Spirogyra, Anthoceros and Funaria
b. Zygnerma, saprolagnia and Hydrilla
c. Fucus, Marsilea and Calotropis
d. Riccia, Dryopteris and Cycas

Question. Top-shaped multiciliate male gamete and seeds with two cotyledons occur in:
a. Cycads
b. Conifers
c. Polypetalous angiosperms
d. Gamopetalous angiosperms

Assertion & Reason Questions

Directions: These questions consist of two statements each, printed as Assertion and Reason. While answering these questions, you are required to choose any one of the following four responses.
A. If both Assertion and Reason are True and the Reason is a correct explanation of the Assertion.
B. If both Assertion and Reason are True but Reason is not a correct explanation of the Assertion.
C. If Assertion is True but the Reason is False.
D. If both Assertion and Reason are False.

Question. Assertion: Approach towards seed habit was first time found in Pteridophytes.
Reason: Pteridophyrtes are partially successful land plants.

Question. Assertion: Bryophytes show alternation of generation.
Reason: Bryophytes have independent gametophyte.

Question. Assertion: Agar is used in culture medium.
Reason: Agar is obtained from red algae.

Question. Assertion: Mosses and lichens are first to colonise bare rocks.
Reason: The lichen stage follow the moss stage and precedes the herbs.

Question. Assertion: Spores in mosses are contained within the capsule.
Reason: Spores are formed by mitotic division in mosses.

Question. Assertion: The leaves in gymosperms are well-adapted to withstand extremes of temperature, humidity and wind.
Reason: Unlike bryophytes and pteridophytes in gymnosperms the male and female gametophytes do not have an independent free-living existence.

Question. Assertion: The seeds of gymnosperms are naked.
Reason: Seed consists of three generations one within the other.

Question. Assertion: In leptosporangiate development, sporangia are formed from single initial.
Reason: Eusporangiate development of sporangia starts from a group of initials.

Question. Assertion: Fertilisation in Cycas is called zooidosiphanogarny.
Reason: Fertilisation in Cycas takes place by the formation of pollen tube.