CBSE Class 11 Biology MCQs Set G

Question. They retain zygote after fertilization in the female reproductive organ which develops into an embryo:
(a) Algae
(b) Fungi
(c) Cyanobacteria
(d) Bryophytes
Ans. D

Question. It is much more uniform habitat and better supplied with nutrients:
(a) Land 
(b) Air 
(c) Water 
(d) Ice
Ans. C

Question. The reproductive organs of moss plants are located on the:
(a) Side of stem 
(b) Base of stem
(c) Tip of stem 
(d) Axil of leaves
Ans. C

Question. The dominant generation in Bryophytes is:
(a) Sporophyte
(b) Gametophyte
(c) Saprophyte
(d) Tracheophyte
Ans. B

Question. Antheridium produces:
(a) Eggs
(b) Sperms 
(c) Spores 
(d) Zygotes
Ans. B

Question. The sex organs of moss plant are:
(a) Unicellular 
(b) Bicellular 
(c) Tricellular 
(d) Multicellular
Ans. D

Question. The large nonmotile egg formed in heterogamy is full of:
(a) stored food 
(b) water 
(c) air
(d) waste matter
Ans. A

Question. Embryos are present in all:
(a) Bryophytes 
(b) Vascular plants 
(c) Algae 
(d) Both A & B
Ans. D

Question. The zygote in moss plant divides and produces:
(a) Sperms
(b) Eggs 
(c) Embryo
(d) Spores
Ans. C

Question. In moss plant, spore on germination develops into:
(a) Sporophyte
(b) Gametophyte 
(c) Liverworts 
(d) Pteredophytes
Ans. B

Question. In Moss plant:
(a) Gametophyte is dependent on Sporophyte 
(b) Sporophyte is dependent on gametophyte
(c) Both are independent from each other 
(d) Both are dependent on each other for food
Ans. B

Question. Alternation of generation:
(a) Increases the chances of survival 
(b) Decreases the chances of survival
(c) Does not affect survival 
(d) None of these
Ans. A

Question. Meiosis (reduction division) in moss plant occurs:
(a) Before gametes formation
(b) Before spore formation 
(c) After spore formation 
(d) After gametes formation
Ans. B

Question. Which of the following have unicellular reproductive organs?
(a) mosses
(b) algae
(c) liverworts
(d) Pteredophytes
Ans. B

Question. Which of the following characteristics are adopted by organisms for life on land?
(a) multicellular plant body
(b) heterogamy
(c) formation of embryos
(d) all of these
Ans. D

Question. Which of the following is an example of liverworts?
(a) Funaria
(b) Marchantia
(c) Ulva
(d) Penecillium
Ans. B

Question. The diffusion of oxygen and carbon dioxide in bryophytes take place through the:
(a) epidermal cells
(b) stomata
(c) pores in the epidermis
(d) cuticle
Ans. C

Question. The female sex organs in moss plant are called:
(a) archegonia
(b) antheridia
(c) sporangia
(d) oogonia
Ans. A

Question. Which of the following are produced in archegonia?
(a) sperms
(b) eggs
(c) ovules
(d) spores
Ans. B

Question. Which of the following produces embryo with in the parent plant?
(a) Rhizopus
(b) Ulva
(c) Funaria
(d) Stigeoclonium
Ans. C

Question. The alternation of generation in moss plant is:
(a) isomorphic
(b) heterosporic
(c) isogamic
(d) heteromorphic
Ans. D

Question. The gametophyte of a moss plant is:
(a) Monoploid
(b) Diploid
(c) Triploid
(d) Polyploidy
Ans. A

Question. Which of the following is mismatched in bryophytes?
(a) archegonia _____ eggs
(b) Antheridia _____ spores
(c) Bryophytes ___ non __vascular plants
(d) Gametophyte ____ dominant
Ans. B

Question. A moss sperm moves by means of:
(a) pseudopodia
(b) one flagellum
(c) two flagella
(d) none of these
Ans. C

Question. The bryophyte sperm attracted to the egg by:
(a) moving currents of water
(b) chemical secretions
(c) opposite electric charges
(d) none of these
Ans. B

Question. Embryonic development of the bryophyte zygote takes places in the:
(a) protonema
(b) sporogonium
(c) Antheridium
(d) archegonium
Ans. D

Question. They are non-vascular plants:
(a) Hosrsetails
(b) Conifers
(C) Club mosses
(d) Liverworts
Ans. D

Question. They are water conducting cells of xylem tissue:
(a) parenchyma
(b) sclera chyma
(C) trachieds
(d) sieve tubes
Ans. C

Question. It is dominant generation in tracheophytes:
(a) Gametophyte
(b) Saprophyte
(C) Sporophyte
(d) Thallophyte
Ans. C

Question. It is the oldest vascular plants:
(a) Psilotum
(b) Selaginella
(C) Lycopodium 
(d) Equisetum
Ans. A

Question. It is a fossil vascular plant:
(a) Rhynia
(b) Psilotum
(C) Pinus
(d) Lycopodium
Ans. A

Question. The branches of primitive vascular plants are:
(a) U-shaped
(b) V-shaped
(C) Y-shaped
(d) W-shaped
Ans. C

Question. Xylem in the stem of primitive vascular plants is:
(a) absent
(b) external to phloem
(C) none of these
Ans. C

Question. The number of veins in Megaphyllous leaf is:
(a) One
(b) Two 
(C) Three
(d) Many
Ans. D

Question. The first step in the evolution of Megaphyllous leaf is called:
(a) Webbing
(b) Formation of out growth 
(C) Planation 
(d) Plantation
Ans. C

Question. In Selaginella, roots are produced from leafless branches called:
(a) Rhizoids 
(b) Rhizomorph 
(C) Rhizophore 
(d) Sporophore
Ans. C

Question. The stem of Selaginella does not contain:
(a) xylem 
(b) Phloem 
(C) Cambium 
(d) Epidermis
Ans. C

Question. Male gametophyte develops from:
(a) Archegonium 
(b) Antheridium 
(C) Megaspore 
(d) Microspore
Ans. D

Question. The embryo of Selaginella develops into:
(a) Gametophyte 
(b) Thallophyte 
(C) Saprophyte 
(d) Sporophyte
Ans. D

Question. Production of two types of spores is called:
(a) Microspory
(b) Megaspory
(C) Homospory
(d) Heterospory
Ans. D

Question. All seed plants are:
(a) Homosporous
(b) Isogamous 
(C) Heterosporous
(d) None of these
Ans. C

Question. Megaspore develops into:
(a) Male gametophyte
 (b) Female gametophyte 
(C) Male Sporophyte 
(d) Female Sporophyte
Ans. B

Question. Pollen tube is required for the production of:
(a) Embryo
(b) Spore
(C) Zygote
(d) Seed
Ans. D

Question. Integumented mega sporangium in which megaspore is retained is called:
(a) Ovule
(b) Seed
(C) Embryo
(d) Pollen tube
Ans. A

Question. In Selaginella the embryo develops into:
(a) Root, stem, leaves and cotyledons
(b) Root, stem, leaves and flowers
(C) Root, stem, leaves and seeds
(d) Root, stem, leaves and fruits
Ans. A

Question. Primitive vascular paints had sporangia at:
(a) Axils of leaves
(b) Bases of branches
(C) Tips of branches
(d) Both A & B
Ans. C

Question. Which one of the following is necessary for the development of seed?
(a) introduction of Heterospory
(b) retention of the megaspore within mega sporangium
(C) development of pollen tube
(d) all of these
Ans. D

Question. Which of the following are non-vascular plants?
(a) club mosses
(b) ferns
(C) mosses
(d) conifers
Ans. C

2(C) In tracheophyte the Sporophyte generation is
(a) dependent
(b) dominant
(C) without leaves
(d) without roots
Ans. B

Question. Which of the following is not the character of gametophyts in tracheophyte?
(a) large
(b) reduced
(C) short lived
(d) small
Ans. A

Question. Which of the following do not produce seeds?
(a) ferns
(b) club mosses
(C) horse tails
(d) all of these
Ans. D

Question. The Pteredophytes are also called lower vascular plants because they:
(a) contain cambium
(b) do not produce seeds
(C) produce flowers
(d) non of these
Ans. B

Question. Which of the following do not have true leaves?
(a) Psilotum
(b) Selaginella
(C) Equisetum
(d) Lycopodium
Ans. D

Question. The oldest known vascular plants were widespread about
(a) 300 million year ago
(b) 400 million years ago
(C) 500 million year ago
(d) 600 million year ago
Ans. A

Question. In which of the following only the stem performs the function of photosynthesis?
(a) Psilotum
(b) Selaginella
(C) Lycopodium
(d) Equisetum
Ans. A

Question. Which of the following number of rows of leaves are present on the stem of Selaginella?
(a) two
(b) four
(C) five
(d) six
Ans. B

Question. Which of the following is not the part of Selaginella plant?
(a) Stem
(b) Root
(C) Seed
(d) Leaves
Ans. C

Question. Reproductive leaves produced at the ends of upright branches in Selaginella are called:
(a) sporophylls
(b) sporangia
(C) sporocarps
(d) spermatia
Ans. A

Question. In Selaginella, sporangia are produced:
(a) at the lower margins of leaves
(b) on the lower surface of leaves
(C) in the axils of sporophyll
(d) on the upper surface of sporophylls
Ans. C

Question. Megaspores are produced inside
(a) microsporangia
(b) megasporangia
(C) archegonia
(d) antheridia
Ans. B

Question. Meiosis in Selaginella occurs
(a) before zygote germination
(b) before gametes formation
(C) before spores formation
(d) after spore formation
Ans. C

Question. In Selaginella sperms are transported to the egg through
(a) insects
(b) water
(C) pollen tube
(d) air
Ans. B

Question. Which of the following are trends towards seed habit exhibited by Selaginella?
(a) Heterospory
(b) Presence of pollen tube
(C) Non-flagellated sperms
(d) Dependency on water for fertilization
Ans. A

Question. In which of the following sporangium is enveloped in a leaf?
(a) Equisetum
(b) Psilotum
(C) Selaginella
(d) Lycopodium
Ans. D

Question. The sporangia of horsetail (Equisetum) cones are produced
(a) in the axils of leaves
(b) on the tip of branches
(C) on little branches
(d) enveloped in leaf
Ans. C

Question. In which of the following sporangia are not properly protected?
(a) Pines
(b) Psilotum
(C) Selaginella
(d) Lycopodium
Ans. B

Question. Which of the following is not the character of seed plants?
(a) Heterospory
(b) Presence of pollen tube
(C) Dependency on water for fertilization
(d) Development of seed
Ans. C

Question. Which of the following are the characteristics of the ovule?
(a) presence of integument
(b) retention of megaspore
(C) maturation into seed
(d) all of these
Ans. D

Question. Which of the following helped the seed plants to adapt to a wide variety of environments?
(a) Heterospory
(b) Presence of roots
(C) No dependency on external water for fertilization
(d) Production of leaves
Ans. C

Question. Sperms are transported to the egg in seed plants through?
(a) water
(b) pollen tube
(C) insects
(d) air
Ans. B

Question. A plant in the division Tracheophyta has a Sporophyte with
(a) isogametes
(b) flagellated and motile eggs
(C) vessels that transport fluids
(d) no independent life
Ans. C

Question. In Selaginella, of the two cells formed by the first division of zygote, only one develops into an embryo while the other grows into an elongated structure called.
(a) rhizophore
(b) radical
(C) suspensor
(d) prothallus
Ans. C