CBSE Class 11 Plant Kingdom Worksheet A

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MULTIPLE CHOICE QUESTIONS

Question. In Dryopteris, the opening mechanism of sporangium is effectively operated by 
(a) stalk
(b) stomium
(c) annulus
(d) peristome
Answer. B

Question. 13 celled male gametophyte of Selaginella has
(a) 12 cells of antheridium + 1 prothallial cell
(b) 10 cells of antheridium + 3 prothallial cell
(c) 9 cells of antheridium + 4 prothallial cell
(d) 8 cells of antheridium + 6 prothallial cell
Answer. A

Question. Which of the following is found in algal zone of Cycas coralloid roots? 
(a) Blue green algae
(b) Red algae
(c) Diatoms
(d) Brown algae
Answer. A

Question. Sex organs in Funaria develop
(a) in protonema.
(b) outside capsule.
(c) in the axil of leaf.
(d) at the tip of gametophore.
Answer. D

Question. Mosses and ferns are found in moist and shady places because both 
(a) require presence of water for fertilization.
(b) do not need sunlight for photosynthesis.
(c) depend for their nutrition on microorganisms which can survive only at low temperature.
(d) cannot compete with sun-loving plants.
Answer. A

Question. In the following table identify the correct matching of the crop, its disease and the corresponding pathogen
     Crop             Disease            Pathogen
(a) Citrus            Canker             Pseudomonas rubrilineans
(b) Potato           Late blight        Fusarium udum
(c) Brinjal            Root-knot         Meloidogyne incognita
(d) Pigeon pea    Seed gall         Phytophthora infestans
Answer. C

Question. Which among the following is a rootless plant? 
(a) Nymphaea
(b) Sagittaria
(c) Ceratophyllum
(d) Vallisneria
Answer. C

Question. Sporocarp is a reproductive structure of
(a) Some algae 
(b) Some aquatic ferns having sori
(c) Angiosperms having spores
(d) Bryophytes
Answer. B

Question. Coralloid roots of Cycas is distinguished from angiosperm roots by 
(a) absence of pith
(b) having xylem tissue
(c) absence of algal zone
(d) presence of algal zone
Answer. D

Question. If the cells of root in wheat plant have 42 chromosomes, then the no. of chromosome in the cell of pollen grain is
(a) 14
(b) 21
(c) 28
(d) 42
Answer. B

Question. In Pinus, the third tier of embryonal cells from below is known as
(a) rosette tier
(b) suspensor tier
(c) embryonal tier
(d) free-nuclear tier
Answer. A

Question. Meiosis in Dryopteris takes place during 
(a) spore formation
(b) gametic formation
(c) spore germination
(d) zygote formation
Answer. A

Question. Sometimes a ladder like structure in Spirogyra is formed due to 
(a) lateral conjugation
(b) asexual reproduction
(c) scalariform conjugation
(d) direct conjugation
Answer. C

Question. In which group of the following would you place the plants having vascular tissue and lacking seeds?
(a) Algae
(b) Fungi
(c) Bryophytes
(d) Pteridophytes
Answer. D

Question. Funaria gametophyte is
(a) dioecious
(b) heteroecious
(c) autoecious
(d) monoecious and autoecious
Answer. D

Question. Sometimes, the fern plant arises from fern prothallus without fertilization. This is an example of
(a) apospory
(b) apogamy
(c) parthenocarpy
(d) gametogenesis
Answer. B

Question. Cycas is 
(a) monoecious
(b) bisexual
(c) dioecious
(d) hermaphrodite
Answer. C

Question. In Ulothrix, meiosis takes place in 
(a) cells of the filament
(b) holdfast
(c) zygote
(d) zoospores
Answer. C

Question. Which of the following is found in algal zone of Cycas coralloid roots? 
(a) Blue green algae
(b) Red algae
(c) Diatoms
(d) Brown algae
Answer. A

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 five responses.
(a) If both Assertion and Reason are correct and the Reason is a correct explanation of the Assertion.
(b) If both Assertion and Reason are correct but Reason is not a correct explanation of the Assertion.
(c) If the Assertion is correct but Reason is incorrect.
(d) If both the Assertion and Reason are incorrect.
(e) If the Assertion is incorrect but the Reason is correct.

Question. Assertion : Mosses are evolved from algae.
Reason : Protonema of mosses is similar to some green algae. 
Answer. A

Question. Assertion : Coconut tree is distributed in coastal areas over a large part of the world.
Reason : Coconut fruit can float and get dispersed over thousands of kilometers before losing viability.
Answer. A

Question. Assertion : The fungi are widespread in distribution and they even live on or inside other plants and animals.
Reason : Fungi are able to grow anywhere on land, water or on other organisms because they have a variety of pigments, including chlorophyll, carotenoids, fucoxanthin and phycoerythrin.
Answer. C

Question. Assertion : Algae and fungi are classified as thallophytes.
Reason : They both are autotrophs
Answer. C

Question. Assertion : Conifer trees produce a large quantity of wind borne pollen grains.
Reason : The pollen grains have wings. 
Answer. A

More Question

1. Name seedless vascular plants.
2. Which pigment is responsible for red colour of red algae?
3. What is a cone?
4. What features led to dominance of vascular plants?
5. Differentiate between Red algae & brown algae?
6. Give some important features of dicots?
7. Explain in brief the structure of prothallus of fern?
8. Point out differences in sexual reproduction of moss & fern?
9. Explain the life cycle in green algae? 

Click on link below to download CBSE Class 11 Plant Kingdom Worksheet A.