NEET Biology | Diversity in Living World | Gymnosperms and Angiosperms MCQ Practice Sheet 10

Gymnosperms and Angiosperms MCQ Practice Sheet 10

 

1. In Gymnosperms, the haploid structures are    

(a)    Megaspore, endosperm and embryo

(b)    Megaspore, pollen grain and endosperm

(c)    Megaspore, integument and root

(d)    Pollen grain, leaf and root

 

2. Cycas has the largest    

(a)    Ovule    

(b)    Egg

(c)    Sperm    

(d)    All the above

 

3. Cycas is    

(a)    Hermaphrodite    

(b)    Dioecious

(c)    Monoecious    

(d)    None of above

 

4. Wood of Cycas is    

(a)    Monoxylic and mannoxylic

(b)    Mannoxylic and polyxylic

(c)    Pycnoxylic and Monoxylic

(d)    Pycnoxylic and Polyxylic

 

5. In Cycas, the ovules are attached to megasporophyll    

(a)    Laterally    

(b)    Dorsally

(c)    Ventrally    

(d)    Apically

 

6. Time interval between pollination and fertilization in Cycas is    

(a)    One month    

(b)    2–3 months

(c)    4–5 months    

(d)    6–12 months

 

7. Cycas contains    

(a)    Mucilage ducts    

(b)    Laticiferous vessels

(c)    Resin ducts    

(d)    Oil ducts

 

8. Pollen grain of Cycas are shed at stage    

(a)    One–celled    

(b)    Two–celled

(c)    Three–celled    

(d)    Four–celled

 

9. Largest cones are those of    

(a)    Pinus    

(b)    Selaginella

(c)    Dryopteris    

(d)    Cycas

 

10. In Cycas, pollination is by    

(a)    Wind    

(b)    Insect

(c)    Water    

(d)    Both a and b

 

11. Cycas is living fossil as it has    

(a)    Growth for several years

(b)    Structure like that of Tree Fern

(c)    Restricted occurrence in certain areas

(d)    Been found in fossil state also

 

12 The suffix–sperm in gymnosperms and angiosperms indicates    

(a)    Sporophylls    

(b)    Ovules and seeds

(c)    Motile sperms    

(d)    Nonmotile sperms

 

13. Male gametes of cycads are    

(a)    Rounded and nonciliate

(b)    Sickle-shaped biflagellate

(c)    Boat-Shaped nonciliate

(d)    Large, top–like, spirally twisted with cilia

 

14. In Cycas, the endosperm is    

(a)    Sporophytic structure

(b)    Gametophytic structure

(c)    New structure

(d)    Formed after fertilization

 

15. Cycas and ferns resemble in possessing    

(a)    Circinate vernation    

(b)    Pollen tube

(c)    Ovule    

(d)    Seeds

 

16. External water is not required for fertilization in    

(a)    Ferns    

(b)    Moss

(c)    Ulothrix    

(d)    Gymnosperms

 

17. Neck canal cell is absent in the archegonium of    

(a)    Funaria    

(b)    Cycas

(c)    Dryopteris    

(d)    All pteridophytes

 

18. Coralloid roots of Cycas possess a symbiotic alga    

(a)    Aulosira    

(b)    Spirogyra

(c)    Ulothrix    

(d)    Anabaena

 

19. Coralloid roots help Cycas in    

(a)    Fixation of nitrogen

(b)    Absorption of water

(c)    Absorption of minerals

(d)    Respiration

 

20. A gymnosperm leaf carries 16 chromosomes. Number of chromosomes in its endosperm shall be    

(a)    16    

(b)    24

(c)    32    

(d)    8

 

Answer Keys for Gymnosperms and Angiosperms MCQ Practice Sheet 10

1.    b    2.    d    3.    b    4.    b    

5.    a    6.    c    7.    a    8.    c    

9.    d    10.    a    11.    c    12.    b    

13.    d    14.    b    15.    a    16.    d    

17.    b    18.    d    19.    a    20.    d

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