Plant Kingdom Class 11 MCQs Questions with Answers

 Plant Kingdom Class 11 MCQs Questions with Answers

Question 1.

Lichens show

(a) Symbiosis

(b) Commensalism

(c) Parasitism

(d) Cooperation

Answer

Question 2.

In chlorophyta the mode of sexual reproduction is

(a) Isogamy

(b) Anisogamy

(c) Oogamy

(d) Isogamy, Anisogamy and oogamy

Answer

Answer: (d) Isogamy, Anisogamy and oogamy

Question 3.

The zygospore of Spirogyra produces-

(a) 2-zoospores

(b) 4-zoospores

(c) 2-4 zoospores

(d) None of these

Answer

Answer: (d) None of these

Question 4.

An evolutionary characteristic is found in selaginella:

(a) Presence of ligule

(b) Heterophilly habits

(c) Sporangia present in cone

(d) Heterospory

Answer

Answer: (d) Heterospory

Question 5.

By which type of leaf is found in selaginella

(a) Aligulate and microphyllous

(b) Ligulate and megaphyllous

(c) Ligulate and microphyllous

(d) Aligulate and megaphyllous

Answer

Answer: (c) Ligulate and microphyllous

Question 6.

Bioluminescence is a phenomenon associated with

(a) chrysophyta

(b) phaeophyta

(c) pyrrophyta

(d) chlorophyta

Answer

Answer: (c) pyrrophyta

Question 7.

No Zoospore formation has been observed in the Algal members belonging to:-

(a) Chlorophyceae

(b) Xanthophyceae

(c) Phaeophyceae

(d) Cyanophyceae

Answer

Answer: (d) Cyanophyceae

Question 8.

Irish moss, is a member of:

(a) True moss

(b) Lichen

(c) Algae

(d) Bryophyte

Answer

Answer: (c) Algae

Question 9.

Yeast is different from penicillium and Rhizopus in being

(a) Acellular

(b) Unicellular

(c) Having unseptate hyphae

(d) multicellular

Answer

Answer: (b) Unicellular

Question 10.

Cephaleuros, which causes “Red rust of tea” is a:

(a) Red Algae

(b) Brown Algae

(c) Dinoflagellate

(d) Green Algae

Answer

Answer: (d) Green Algae

Question 11.

Selaginella is a type of plant

(a) Oogamous and homosporous

(b) Oogamous and heterosporous

(c) Isogamous & heterosporous

(d) Isogamous & Homosporous

Answer

Answer: (b) Oogamous and heterosporous

Question 12.

By which plant seed habit originated:

(a) Moss

(b) Little Club moss

(c) Pinus

(d) Angiosperm

Answer

Answer: (b) Little Club moss

Question 13.

Algae which have food conducting tubes similar to phloem in vascular plants are

(a) Red algae

(b) Brown algae

(c) Blue green algae

(d) Green algae

Answer

Answer: (b) Brown algae

Question 14.

Female sex organ of algae is called:

(a) Carpel

(b) Oogonium

(c) Archegonia

(d) Oosphere

Answer

Answer: (b) Oogonium

Question 15.

Zygotic meiosis is characteristic of

(a) Procaryotes

(b) Thallophyta

(c) Bryophyta

(d) Spermatophyta

Answer

Answer: (b) Thallophyta

Question 16.

Mycorrhiza is an association between roots of higher plant and fungus. It is an example of

(a) Symbiosis

(b) Myremecophilly

(c) Helotism

(d) Parasitism

Answer

Answer: (a) Symbiosis

Question 17.

Cell wall of Spirogyra is-

(a) One layered

(b) Two layered

(c) Three layered

(d) Four layered

Answer

Answer: (b) Two layered

Question 18.

Spirogyra belongs to-

(a) volvocales

(b) conjugales

(c) ulotrichales

(d) siphonales

Answer

Answer: (b) conjugales

Question 19.

Spirogyra found in

(a) Stagnant fresh water

(b) Running salt water

(c) Stagnant salt water

(d) Running fresh water

Answer

Answer: (a) Stagnant fresh water

Question 20.

Common bread mould is:

(a) Yeast

(b) Mucor

(c) Bacteria

(d) Virus

Answer

Answer: (b) Mucor

Question 21.

Most common phycobiont in a lichen is

(a) Microcystis

(b) Trebouxia

(c) Ulothrix

(d) Spirogyra

Answer

Answer: (b) Trebouxia

Question 22.

Which of the following is essential for seed habit-

(a) Free gametophyte

(b) Dependent sporophyte

(c) Heterospory

(d) Haploid life cycle

Answer

Answer: (c) Heterospory

Question 23.

A prokaryotic autotrophic nitrogen fixing symbiont found in

(a) Pisum

(b) Alnus

(c) Cycas

(d) Cicer

Answer

Answer: (c) Cycas

Question 24.

Sexual reproduction in spirogyra is:

(a) Anisogamous

(b) Physiological anisogamous

(c) Isogamous

(d) Oogamous

Answer

Answer: (c) Isogamous

Question 25.

A prothallus is

(a) A structure in pteridophytes formed before the thallus develops

(b) A gametophyte free living structure formed in pteridophytes

(c) A sporophytic free living structure formed in pteridophytes

(d) A primitive structure formed after fertilization in pteridophytes

Answer

Answer: (b) A gametophyte free living structure formed in pteridophytes

Question 26.

Which of the following algae produces synzoospores:

(a) Chlamydomonas

(b) Polysiphonia

(c) Chlorella

(d) Vaucheria

Answer

Answer: (d) Vaucheria

Question 27.

Change in colour of algae according to depth in sea is called:

(a) Bohr’s effect

(b) Gaudikov’s effect

(c) Fogg’s effect

(d) Pasteur effect

Answer

Answer: (b) Gaudikov’s effect

Question 28.

Who is popularly known as the “Father of Phycology”

(a) Fritsch

(b) Papenfus

(c) Smith

(d) Morris

Answer

Answer: (a) Fritsch

Question 29.

Main plant body of the selaginella is :

(a) A gametophyte

(b) A sporophyte

(c) Half gametophyte

(d) Haploid phase

Answer

Answer: (b) A sporophyte

Question 30.

Sexual reproduction in Thallophyta takes place by:

(a) Isogamy

(b) Anisogamy

(c) Oogamy

(d) Any of the above

Answer

Answer: (d) Any of the above

Question 31.

The outer cell-wall of Spirogyra is made up of:

(a) Cellulose

(b) Pectin/Pectose

(c) Hemicellulose

(d) Protein

Answer

Answer: (b) Pectin/Pectose

Question 32.

Red algae is red due to the presence of:

(a) R-Phycocyanin

(b) R-Phycoerythrin

(c) C-Phycocyanin

(d) C-Phycoerythrin

Answer

Answer: (b) R-Phycoerythrin