PLANT KINGDOM-NEET- PRACTICE QUESTIONS

 


                                         PLANT  KINGDOM

1. The pigments that gives class-rhodophyceae (red algae) its distinctive red colour are:

A) Chlorophyll-a, b & phycoerythrin

B) Chlorophyll-a, c & fucoxanthin

C) Chlorophyll-a, d & phycoerythrin

D) Chlorophyll-a, c and phycoeyanin

Correct Answer: C

2.  The dominant stage in Spirogyra is the sporophytic stage.

A) It is correct.

B) It is incorrect.

C) Spirogyra does not display alternation of generation

D) Sometimes [a] and [b]

Correct Answer: B

3. What is the similarity between gymnosperms and angiosperms?

A) Phloem of both have companian cells.

B) Endosperm is formed before fertilization in both.

C) Origin of ovule and seed is similar in both.

D) Both have leaves, stem and roots.

Correct Answer: D

4. In the given Life cycle of an angiosperm, 1, 2, 3, 4 and 5 are respectively 

A) 1- Stigma, 2-Anther, 3-Male gametophyte, 4-Egg, 5-Female gametophyte

B) 1-Stigma, 2-Anther, 3-Female gametophyte, 4-Egg, 5-male gametophyte

C) 1-Stigma, 2-Anther, 3-Male gametophyte, 4-Fertilised egg, 5-Female gametophyte

D) 1-Stigma, 2-Anther, 3-Embryo sac, 4-Egg, 5-Female gametophyte

Correct Answer: A

5.  Which one of the following is the major difference between mosses and ferns?

A) Ferns lack alternation of generation while mosses show the same.

B) Mosses are facultative aerobes while ferns are obligate aerobes.

C) Vascular bundles of ferns show xylem vessels while those of mosses lack it.

D) Sporophytes of ferns live much longer as compared to the Sporophytes of mosses.

Correct Answer: D

6.  Gemma cups are small receptacles that give rise to gemmae (asexual buds). These gemma cups are found in:

A) Sphagnum and Marchantia

B) Marchantia

C) Funaria

D) Fern

Correct Answer: B

7.  Match column-1 with column-II and select the correct answer using the codes given below.

Column-I (Pattern of life cycle in plant)Column-II (Example)
A.Haplontic life cycleI.Bryophytes, Pteridophytes, Ectocarpus, Polysiphonia, Kelps
B.Diplontic life cycleII.Seed bearing plants (Gynmosperm and Angiosperm), Fucus
C.Haplo-diplontic life cycleIII.Many algae (Volvox) Spirogyra and some species of Chlamydomonas

A) A-III         B-II    C-I

B) A-I          B-II     C-III

C) A-II         B-I      C-III

D) A-III        B-I      C-II

Correct Answer: A

8.  Number of cotyledons in Zea mays, Cycas and Pinus respectively are:

A) 1, 2, 4  

B) 1, 2, many

C) 2, 2, many        

D) 2, 1, 4

Correct Answer: B

9.  Mosses and ferns are found in moist and shady places because both:

A) require presence of water for fertilisation.

B) do not need sunlight for photosynthesis.

C) depend for their nutrition on micro-organisms which can survive only at low temperature.

D) cannot compete with sun-loving plants.

Correct Answer: A

10.  The main plant body in pteridophyte is:

A) sporophyte (2n) which is differentiated into root, stem and leaf.

B) gametophyte (n) which is differentiated into root, stem and leaf.

C) sporophyte having no root, stem and leaf.

D) gametophyte having no root but only stem and leaf.

Correct Answer: A

11.  The ploidy level of protonema, apophysis, calyptra and perichaetial leaves in Funaria are:

A) N, 2N, N and 2N respectively.

B) 2N, N, N and 2N respectively.

C) 2N, 2N, N and N respectively.

D) N, 2N, N and N respectively.

Correct Answer: D

12.  Bryophytes can be separated from algae because they:

A) are thalloid forms.

B) have no conducting tissue.

C) possess archegonia with outer layer of sterile cells.

D) contain chloroplasts in their cells.

  • Correct Answer: C


  • 13.  The rhizophore is not a true root because it is:

A) Endogenous   

B) Exogenous

C) Mesogenous      

D) Endarch

Correct Answer: B

14.  Which of the following occurs both in fresh as well as in marine water?

A) Oedogonium     

B) Cladophora

C) Spirogyra          

D) None of the above

  • Correct Answer: B


15.  Ectocarpus, Dictyota, Laminaria, Sargassum, and Fucus belong to the class:

A) Rhodophyceae   

B) Pheophyceae

C) Cyanophyceae

D) Chlorophyceae

Correct Answer: B

16. Which of the following is living fossil?

A) Pinus    

B) Ginkgo biloba

C) Thuja   

D) Deodar

Correct Answer: B

17.  Match column-I with column-II and select the correct answer using the codes given below.  

 Column-I Column-II
A.PeritrichousI.Ginkgo
B.Living fossilII.Macrocystis
C.RhizophoreIII.Escherichia coli
D.Smalllest flowering plantIV.Selaginella
E.Largest perennial algaV.Wloffia

A) A-III         B-I     C-IV      D-V       E-II

B) A-II         B-I      C-III      D-IV      E-V

C) A-IV        B-III    C-II       D-V       E-I

D) A-I        B-IV     C-V       D-III      E-II

Correct Answer: A

18. In some of the liverworts, there are special elongated cells called elaters that possess a helical thickening of the cell wall. As elaters lose water, they shrink longitudinally and compress the helical thickening like a spring. When the stress reaches a critical point, the compressed "spring" snaps back to its resting position, liberating hundreds of__ in all directions.

A) Moisture particles

B) Spores

C) Sperm  

D) Ova

  • Correct Answer: B


  • 19. Match column-I with column-II and select the correct answer using the codes given below.

 Column-I (features) Column-II (term)
A.Presence of tap roots and coralloid roots.I.Bryophyte
B.The synergids and antipodal cells degenerates after fertilization.II.Preridophytes
C.The food is stored as floridean starch which is very similar to amylopectin and glycogen in structure.III.Red algae
D.Presence of sporophyte which is not free living but attached to the photosynthetic gametophytes and derives nourishment from it.IV.Angiosperms
E.Members of this group are used for medicinal purposes, as soil binders and frequently grown as ornamentals.V.Gymnosperms

A) A-I           B-II    C-III      D-IV      E-V

B) A-III        B-V     C-II       D-IV      E-I

C) A-III        B-I      C-V       D-II       E-IV

D) A-V       B-IV     C-III      D-I        E-II

  • Correct Answer: D

  • 20. Which one of the following is of considerable economic importance?

A) Riccia               

B) Funaria

C) Marchantia   

D) Sphagnum

Correct Answer: D

21.  In gymnosperm, endosperm is formed by:

A) fusion between a male gamete and two polar nuclei.

B) fusion between a male gamete and a polar nuclei.

C) fusion between egg and male gamete.

D) germination of megaspore.

Correct Answer: D

22.  "Botanical snakes" are:

A) Algae               

B) Fungi

C) Bryophytes       

D) Pteridophytes

Correct Answer: D

23.  The plant body constituting a holdfast, stipe and frond are seen in:

A) Volvox             

B) Chara

C) Laminaria         

D) Chlamydomonas

Correct Answer: C

24.  During monsoon, ground becomes slippery because of:          

A) Red algae     

B) Blue-green algae

C) Mosses             

D) Liverworts

Correct Answer: B

25. Consider the following statements about brown algae.

(i) Nereocystis and Macrocystis are the largest kelps.
(ii) Algin is the gelatinous coating outside the cellulosic cell wall in brown algae.
(iii) 'Kombu' is the name given to the food obtained from Laminaria saccharina.
Which of the statements given above are correct?

A) (ii) and (iii)    

B) (i) and (ii)

C) (i) and (iii)     

D) (i), (ii) and (iii)

Correct Answer: D

26.  Which of the following part of the Funaria, sporophyte is involved in the dispersal of spores?

A) Calyptra    

B) Peristome

C) Operculum    

D) Annulus

Correct Answer: B

27.  Canada balsam is obtained from:

A) Pinus wallichiana

B) Abies balsamea

C) Gnetum gnemon

D) Ephedra vulgaris

Correct Answer: B

28. When moss spores germinate, they form:

A) Leafy gametophyte        

B) Capsule

C) Protonema

D) Rhizoids

Correct Answer: C

29.  Which of the following statements are correct?

(i) The commercial product, Agar, obtained from Gracilaria and Gelidium, as in ice cream and jelly preparation as well as used to grow microbes.
(ii) Spirogyra and Chlorella are used in sewage disposal ponds.
(iii) Some species of marine algae like Porphyra, Laminaria and Sargassum are used as food.

A) (ii) and (iii)    

B) (i) and (ii)

C) (i) and (iii)     

D) (i), (ii) and (iii)

Correct Answer: D

30. Fern plant is a:

A) Haploid gametophyte

B) Diploid gametophyte

C) Diploid sporophyte

D) Haploid sporophyte

Correct Answer: C

 

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