MCQ Questions for Class 11 Biology: Ch 3 Plant Kingdom

MCQ Questions for Class 11 Biology: Ch 3 Plant Kingdom

1. Mycorrhiza is an association between roots of higher plant and fungus. It is an example of 
(a) Symbiosis
(b) Myremecophilly
(c) Helotism
(d) Parasitism
► (a) Symbiosis

2. Red algae is red due to the presence of:
(a) R-Phycocyanin
(b) R-Phycoerythrin
(c) C-Phycocyanin
(d) C-Phycoerythrin
► (b) R-Phycoerythrin

3. Zygotic meiosis is characteristic of :-
(a) Procaryotes
(b) Thallophyta
(c) Bryophyta
(d) Spermatophyta
► (b) Thallophyta

4. The outer cell-wall of Spirogyra is made up of:
(a) Cellulose
(b) Pectin/Pectose
(c) Hemicellulose
(d) Protein
► (b) Pectin/Pectose

5. Female sex organ of algae is called:
(a) Carpel
(b) Oogonium
(c) Archegonia
(d) Oosphere
► (b) Oogonium

6. Sexual reproduction in Thallophyta takes place by:
(a) Isogamy
(b) Anisogamy
(c) Oogamy
(d) Any of the above
► (d) Any of the above

7. 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
► (b) Brown algae

8. Main plant body of the selaginella is :
(a) A gametophyte
(b) A sporophyte        
(c) Half gametophyte
(d) Haploid phase
► (b) A sporophyte        

9. By which plant seed habit originated:
(a) Moss
(b) Little Club moss    
(c) Pinus
(d) Angiosperm
► (b) Little Club moss    

10. Who is popularly known as the "Father of Phycology''
(a) Fritsch
(b) Papenfus
(c) Smith
(d) Morris
► (a) Fritsch

11. Selaginella is a type of plant
(a) Oogamous and homosporous
(b) Oogamous and heterosporous 
(c) Isogamous & heterosporous    
(d) Isogamous & Homosporous
► (b) Oogamous and heterosporous 

12. 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
► (b) Gaudikov's effect

13. Cephaleuros, which causes "Red rust of tea" is a:
(a) Red Algae
(b) Brown Algae
(c) Dinoflagellate
(d) Green Algae
► (d) Green Algae

14. Which of the following algae produces synzoospores:
(a) Chlamydomonas
(b) Polysiphonia
(c) Chlorella
(d) Vaucheria
► (d) Vaucheria

15. Yeast is different from penicillium and Rhizopus in being    
(a) Acellular
(b) Unicellular
(c) Having unseptate hyphae
(d) multicellular
► (b) Unicellular

16. 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
► (b) A gametophyte free living structure formed in pteridophytes

17. Irish moss, is a member of:
(a) True moss
(b) Lichen
(c) Algae
(d) Bryophyte
► (c) Algae

18. Sexual reproduction in spirogyra is:
(a) Anisogamous
(b) Physiological anisogamous
(c) Isogamous 
(d) Oogamous
► (c) Isogamous 

19. No Zoospore formation has been observed in the Algal members belonging to:-
(a) Chlorophyceae
(b) Xanthophyceae
(c) Phaeophyceae
(d) Cyanophyceae
► (d) Cyanophyceae

20. A prokaryotic autotrophic nitrogen fixing symbiont found in
(a) Pisum
(b) Alnus
(c) Cycas
(d) Cicer
► (c) Cycas

21. Bioluminescence is a phenomenon associated with
(a) chrysophyta
(b) phaeophyta
(c) pyrrophyta
(d) chlorophyta
► (c) pyrrophyta

22. Which of the following is essential for seed habit-
(a) Free gametophyte
(b) Dependent sporophyte
(c) Heterospory
(d) Haploid life cycle
► (c) Heterospory

23. 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
► (c) Ligulate and microphyllous     

24. Most common phycobiont in a lichen is :
(a) Microcystis
(b) Trebouxia
(c) Ulothrix
(d) Spirogyra
► (b) Trebouxia

25. An evolutionary characteristic is found in selaginella:
(a) Presence of ligule
(b) Heterophilly habits
(c) Sporangia present in cone
(d) Heterospory
► (d) Heterospory

26. Common bread mould is:
(a) Yeast
(b) Mucor
(c) Bacteria
(d) Virus
► (b) Mucor

27. The zygospore of Spirogyra produces-
(a) 2-zoospores
(b) 4-zoospores
(c) 2-4 zoospores
(d) None of these
► (d) None of these

28. Spirogyra found in-
(a) Stagnant fresh water
(b) Running salt water
(c) Stagnant salt water 
(d) Running fresh water
► (a) Stagnant fresh water

29. In chlorophyta the mode of sexual reproduction is :-
(a) Isogamy
(b) Anisogamy
(c) Oogamy
(d) Isogamy, Anisogamy and oogamy
► (d) Isogamy, Anisogamy and oogamy

30. Spirogyra belongs to-
(a) volvocales
(b) conjugales
(c) ulotrichales
(d) siphonales
► (b) conjugales

31. Lichens show
(a) Symbiosis
(b) Commensalism
(c) Parasitism
(d) Cooperation
► (a) Symbiosis

32. Cell wall of Spirogyra is-
(a) One layered
(b) Two layered
(c) Three layered
(d) Four layered
► (b) Two layered
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