CBSE Class 11 Biology – MCQ and Online Tests – Unit 3 – Plant Kingdom
Every year CBSE schools conducts Annual Assessment exams for 6,7,8,9,11th standards. These exams are very competitive to all the students. So our website provides online tests for all the 6,7,8,9,11th standard’s subjects. These tests are also very effective and useful for those who preparing for any competitive exams like Olympiad etc. It can boost their preparation level and confidence level by attempting these chapter wise online tests.
These online tests are based on latest CBSE syllabus. While attempting these our students can identify the weak lessons and continuously practice those lessons for attaining high marks. It also helps to revise the NCERT textbooks thoroughly.
CBSE Class 11 Biology – MCQ and Online Tests – Unit 3 – Plant Kingdom
Question 1.
Gymnosperms produce neither flower nor fruit because they do not possess
(a) Embryo
(b) Ovary
(c) Ovule
(d) Seed
Answer
Answer: (b) Ovary
Question 2.
Rhodophyceae is called red algae because of the pigment
(a) Fucoxanthin
(b) Phycoerythrin
(c) Carotenoids
(d) Chlorophyll c
Answer
Answer: (b) Phycoerythrin
Explanation:
Members of Rhodophyceae are commonly called red algae because of the predominance of the red pigment, r-phycoerythrin in their body.
Question 3.
In gymnosperms, the development of pollen grains occurs in
(a) Strobili
(b) Microsporangia
(c) Megasporangia
(d) Macrosporangia
Answer
Answer: (b) Microsporangia
Explanation:
In gymnosperms, the development of pollen grains occur in microsporangia.
Question 4.
In a monoecious plant
(a) Male and female sex organs are on the same individual
(b) Male and female gametes are of two morphologically distinct types
(c) Male and female sex organs are on different individuals
(d) All the stamens are fused to form one unit
Answer
Answer: (a) Male and female sex organs are on the same individual
Question 5.
The seedless vascular plants whose sporophytes are larger than their small and independent gametophytes are
(a) Pteridophytes
(b) Angiosperms
(c) Gymnosperms
(d) None of these
Answer
Answer: (a) Pteridophytes
Question 6.
Which of the following is a liverwort?
(a) Sphagnum
(b) Funaria
(c) Marchantia
(d) Polytrichum
Answer
Answer: (c) Marchantia
Explanation:
Marchantia is a liverwort.
Sphagnum, Funaria and Polytrichum are mosses.
Question 7.
Transgenic plants are the ones
(a) Grown in artificial medium after hybridization in the field
(b) Produced by a somatic embryo in artificial medium
(c) Generated by introducing foreign DNA in to a cell and regenerating a plant from that cell
(d) Produced after protoplast fusion in artificial medium
Answer
Answer: (c) Generated by introducing foreign DNA in to a cell and regenerating a plant from that cell
Question 8.
Which of the following plants is used extensively for the study of photosynthesis?
(a) Amaranthus
(b) Asparagus
(c) Chlorella
(d) Sunflower
Answer
Answer: (c) Chlorella
Question 9.
Which of the following is used to grow microbes?
(a) Laminaria
(b) Gelidium
(c) Chlorella
(d) Sargassum
Answer
Answer: (b) Gelidium
Explanation:
Agar is extracted from Gelidium and Gracilaria, it is used to grow microbes and in preparation of ice-cream and jellies.
Question 10.
Isogamous condition with non-flagellated gametes is found in
(a) Chlamydomonas
(b) Spirogyra
(c) Volvox
(d) Fucus
Answer
Answer: (b) Spirogyra
Question 11.
Which one of the following is a vascular cryptogram?
(a) Cedrus
(b) Equisetum
(c) Ginkgo
(d) Marchantia
Answer
Answer: (b) Equisetum
Question 12.
Pinus differs from mango in having
(a) Tree habit
(b) Green leaves
(c) Ovules not enclosed in ovary
(d) Wood
Answer
Answer: (c) Ovules not enclosed in ovary
Question 13.
In moss stomata appears on
(a) Capsule
(b) Leaves
(c) Stem
(d) All of these
Answer
Answer: (a) Capsule
Question 14.
The gametophyte is not an independent, free-living generation in
(a) Pinus
(b) Polytrichum
(c) Adiantum
(d) Marchantia
Answer
Answer: (a) Pinus
Question 15.
Ribbon shaped chloroplasts occur in
(a) Ulothrix
(b) Spirogyra
(c) Chlamydomonas
(d) Riccia
Answer
Answer: (b) Spirogyra
Question 16.
Antheridia and Archegonia are sex organs of
(a) Moss
(b) Mucor
(c) Spirogyra
(d) Puccinia
Answer
Answer: (a) Moss
Question 17.
Rhodophyceae is called red algae because of the pigment
(a) Fucoxanthin
(b) Phycoerythrin
(c) Carotenoids
(d) Chlorophyll c
Answer
Answer: (b) Phycoerythrin
Explanation:
Members of Rhodophyceae are commonly called red algae because of the predominance of the red pigment, r-phycoerythrin in their body.
Question 18.
Which of the followings plant material is an efficient water imbibant?
(a) Agar
(b) Cellulose
(c) Lignin
(d) Pectin
Answer
Answer: (a) Agar
Question 19.
Iodine is found in
(a) Spirogyra
(b) Laminaria
(c) Polysiphonia
(d) Chlorella
Answer
Answer: (b) Laminaria
Question 20.
Bryophytes are called amphibians of plant kingdom because
(a) These plants live in soil and depend on marine organisms for asexual reproduction.
(b) These plants live in soil and depend on water for sexual reproduction.
(c) These plants live in water and depend on land animals for sexual reproduction.
(d) These plants live near water bodies.
Answer
Answer: (b) These plants live in soil and depend on water for sexual reproduction.
Explanation:
Bryophytes are called amphibians of plant Kingdom because they live in soil and depend on water for sexual reproduction.
They usually occur in damp humid and shaded areas.
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