Custom Practice Test

Biology-I-Section-A

1. Biflagellate zoospores that are pear-shaped and have two unequal laterally attached flagella are involved in:

1.	Asexual reproduction in brown algae
2.	Asexual reproduction in red algae
3.	Sexual reproduction in brown algae
4.	Sexual reproduction in red algae

2. Consider the given two statements:

Statement I:	In Cycas, the pinnate leaves persist for a few years.
Statement II:	In conifers, the needle-like leaves reduce the surface area helping to reduce water loss.

1. Statement I is correct but Statement II is incorrect
2. Statement I is incorrect but Statement II is correct
3. Statement I and Statement II are correct
4. Statement I and Statement II are incorrect

3. Which of the following will not be applicable to the Gymnosperm Cycas?
1. Coralloid roots
2. Pinnate persistent leaves
3. Dioecy
4. Branched stems

4. Identify the correct match:

I:	Green algae	2-8 flagella; equal in length and apical in insertion
II:	Brown algae	Food stored as floridean starch
III:	Red algae	Pear-shaped gametes bearing two laterally attached flagella

1. Only I
2. Only II and III
3. Only III
4. I, II and III

5. Agar, a complex polysaccharide with various applications in microbiology and food industry, is commercially derived from:

1.	Red algae	2.	Brown algae
3.	Green algae	4.	Diatoms

6.

Examine the figures A, B, C and D. In which one of the four options all the items, A, B, C and D are correct?

Options :

	A	B	C	D
1.	Equisetum	Ginkgo	Selaginella	Lycopodium
2.	Selaginella	Equisetum	Salvinia	Ginkgo
3.	Funaria	Adiantum	Salvinia	Riccia
4.	Chara	Marchantia	Fucus	Pinus

7. Fucus is:

1.	a brown alga having oogamous sexual reproduction and haplo-diplontic life cycle
2.	a red alga having anisogamous sexual reproduction and diplontic life cycle
3.	a brown alga having oogamous sexual reproduction and diplontic life cycle
4.	a red alga having isogamous sexual reproduction and diplontic life cycle

8. The figure shows:

1. Female thallus of Marchantia
2. Male thallus of Marchantia
3. Gametophyte of Funaria
4. Sporophyte of Funaria

9. Match the alga with the type of life cycle and select the correct match from the codes given:

	Alga		Type of life cycle
A.	Spirogyra	P.	Haplontic
B.	Fucus	Q.	Diplontic
C.	Polysiphonia	R.	Haplo-diplontic

Codes:

	A	B	C
1.	P	Q	R
2.	P	R	Q
3.	Q	P	R
4.	R	Q	P

10. In pteridophytes:

I:	the main plant body is a gametophyte
II:	body is differentiated into true root, stem and leaves
III:	organs possess well-differentiated vascular tissues

1. Only I and II are correct
2. Only I and III are correct
3. Only II and III are correct
4. I, II and III are correct

11. Match each item in Column I with one in Column II and select the correct match from the codes given:

	Column I		Column II
A	Ulothrix	P	Brown algae with diplontic life cycle
B	Ectocarpus	Q	Major pigments are chlorophyll a and b
C	Fucus	R	Brown algae with haplo-diplontic life cycle
D	Polysiphonia	S	Lack flagella

Codes:

	A	B	C	D
1.	P	S	Q	R
2.	Q	P	R	S
3.	Q	R	P	S
4.	R	Q	S	P

12. Besides starch, pyrenoids in many members of Chlorophyceae, contain:

1.	Double-stranded DNA
2.	A low molecular weight RNA
3.	Protein
4.	Lipids

13. The giant redwood tree Sequoia, one of the tallest tree species, is a:

1.	Liverwort	2.	Moss
3.	Gymnosperm	4.	Angiosperm

14. Besides paddy fields, cyanobacteria are also found inside vegetative part of:

1.	Cycas	2.	Equisetum
3.	Psilotum	4.	Pinus

15.

Which one of the following statements is wrong?
1. Algin and carrageenan are products of algae
2. Agar-agar is obtained from Gelidium and Gracilaria
3. Chlorella and Spirulina are used as space food
4. Mannitol is stored food in Rhodophyceae

16. The classification system given by Bentham and Hooker is a/an:

1.	Artificial system	2.	Natural system
3.	Phylogenetic system	4.	Useless system

17. Algae are useful to man in a variety of ways. Identify the correct statements:

I:	At least a half of the total carbon dioxide fixation on earth is carried out by algae through photosynthesis.
II:	They are of paramount importance as primary producers of energy-rich compounds which form the basis of the food cycles of all aquatic animals.
III:	Many species of Porphyra, Laminaria and Sargassum are among the 70 species of marine algae used as food.
IV:	Agar, one of the commercial products obtained from Gelidium and Gracilaria, are used to grow microbes and in preparations of ice-creams and jellies.
V:	Chlorella, a multicellular alga rich in proteins, is used as food supplement even by space travellers.

1. Only I, II, III and IV
2. Only I, II, IV and V
2. Only I, II and III
4. Only II, III and IV

18. The cell wall of the cells of an alga has cellulose and algin. Another feature expected in this alga would be:

1.	Floridean starch as stored food
2.	Phycoerythrin in addition to chlorophyll a, c
3.	2, unequal, lateral flagellar insertions
4.	Polysulphate esters in cell wall

19.

Pinus seeds cannot germinate and establish without fungal association. This is because:
1. its seeds contain inhibitors that prevent germination.
2. its embryo is immature.
3. it has an obligate association with mycorrhizae.
4. it has a very hard seed coat.

20. A dominant gametophyte will be seen in the life cycle of:
1. Marchantia
2. Sequoia
3. Adiantum
4. Eucalyptus

21. Identify the incorrectly matched pair:

1.	Phylogenetic classification systems	Based on evolutionary relationships
2.	Numerical Taxonomy	Based on all observable characteristics
3.	Cytotaxonomy	Based on a few vegetative characters only.
4.	Chemotaxonomy	Uses the chemical constituents of the plant

22. Match each item in Column I with one in Column II regarding Cycas and select the correct match from the codes given:

	Column I [Feature of Cycas]		Column II [Description]
A	Root symbiont	P	Mycorrhiza
B	Leaves	Q	Cyanobacteria
C	Stems	R	Palmate, fall early
		S	Pinnate, persist for few years
		T	Unbranched
		U	Branched

Codes:

	A	B	C
1.	Q	S	T
2.	Q	S	U
3.	Q	R	T
4.	P	S	U

23. The correct statements regarding the life cycle seen in various algae will be:

I.	Most algal genera are haplontic
II.	Genera such as Ectocarpus, Polysiphonia, and kelps are diplontic
III.	Fucus is diplontic

1. Only I
2. Only III
3. Only I and III
4. I, II and III

24.

Unlike bryophytes and pteridophytes, in gymnosperms:

I:	there is development of ovule and later the seed
II:	pollen tubes carry male gametes to archegonia
III:	gametophytes do not have an independent free living existence

1.	Only I and II are correct
2.	Only I and III are correct
3.	Only II and III are correct
4.	I, II and III are correct

25.

Which one of the following pairs is wrongly matched?
1. Salvinia - Prothallus
2. Viroids – RNA
3. Mustard-Synergids
4. Ginkgo-Archegonia

26.

All the following statements regarding the importance of algae are correct except:

1.	Agar is obtained from Gelidium and Gracilaria.
2.	Porphyra, Laminaria and Sargassum are marine algae used as food.
3.	Algin and carrageen are both obtained from brown algae.
4.	Chlorella is rich in proteins and is used as a food supplement even by space travellers.

27. Identify the correct statements:

I:	The gametes are flagellated and similar in size in Ulothrix or non-flagellated (non-motile) but similar in size in Spirogyra.
II:	Fusion of two gametes dissimilar in size, as in species of Eudorina is termed as anisogamous.

1. Only I
2. Only II
3. Both I and II
4. Neither I nor II

28.

Given are the following five statements (I - V) for your consideration:

I:	In Equisetum, the female gametophyte is retained on the parent sporophyte
II:	In Ginkgo, male gametophyte is not independent
III:	The sporophyte in Marchantia is more developed than that in Polytrichum
IV:	Sexual reproduction in Volvox is isogamous
V:	The spores of slime moulds lack cell walls

How many of the above statements is/are correct?

1.	Three	2.	Four
3.	One	4.	Two

29. Though their main body is sporophyte, yet, free-living photosynthetic gametophyte can be seen in:

1.	Bryophytes	2.	Pteridophytes
3.	Gymnosperms	4.	Angiosperms

30. Asexual reproduction in brown algae is by:

1.	biflagellate biconcave disc shaped zoospores
2.	non-motile spherical aplanogametes
3.	biflagellate pear shaped zoospores
4.	non-motile zoospores produced in zoosporangia

31. Which of the following is not correct regarding differences between liverworts and mosses in general?

		Liverworts	Mosses
1.	Rhizoids	Unicellular	Multi-cellular
2.	Sporophyte	Less elaborate	More elaborate
3.	Asexual reproduction	Gemmae	Budding in secondary protonema
4.	Dominant generation	Gametophyte	Sporophyte

32. Study the Assertion statement followed by the Reason statement given below:

Assertion (A):	Mosses reduce the impact of falling rain and prevent soil erosion.
Reason (R):	Mosses form dense mats on the soil.

1.	(A) is True and (R) is False.
2.	Both (A) and (R) are True and (R) is the correct explanation of (A).
3.	Both (A) and (R) are True but (R) is not the correct explanation of (A).
4.	(A) is False and (R) is True.

33.

Consider the following statements:

I:	Pteridophytes are the first terrestrial plants to possess vascular bundles.
II:	Main plant body in pteridophytes is sporophyte which is differentiated into true stem and leaves.
III:	Genera like Selaginella and Salvinia are heterosporous.

Which of the above statements are true?
1. I and II only
2. I and III only
3. II and III only
4. I, II and III

34. Consider the two statements:

Statement I:	Classification for flowering plants given by George Bentham and Joseph Dalton Hooker is a natural system of classification.
Statement II:	Classification for flowering plants given by Linnaeus is an artificial system of classification.

1. Statement I is correct; Statement II is correct
2. Statement I is incorrect; Statement II is correct
3. Statement I is correct; Statement II is incorrect
4. Statement I is incorrect; Statement II is incorrect

35. Consider the given two statements:

Assertion (A):	Bryophytes are also called amphibians of the plant kingdom.
Reason (R):	Bryophytes play an important role in plant succession on bare rocks/soil.

1.	Both (A) and (R) are True and (R) explains (A)
2.	Both (A) and (R) are True and (R) does not explain (A)
3.	(A) is True but (R) is False
4.	(A) is False but (R) is True

Biology-I-Section-B

36. One of the commercial products obtained from Gelidium and Gracilaria and which is used to grow microbes and in preparations of ice-creams and jellies is:
1. Agar
2. Algin
3. Carrageen
4. Inulin

37. How many of the comparisons between Pinus and Cycas given below are correct:

	Pinus	Cycas
I:	Coralloid roots	Mycrorrhizal associations
II:	Stems are branched	Stems are unbranched
III:	The male or female cones or strobili are borne on different trees	The male or female cones or strobili are borne on the same tree

1. 0
2. 2
3. 1
4. 3

38.

Which one is wrongly matched?
1. Uniflagellate gametes - Polysiphonia
2. Biflagellate zoospores - Brown algae
3. Gemma cups - Marchantia
4. Unicellular organism - Chlorella

39. The leaves in pteridophyta are:
1. microphylls in Selaginella or macrophylls in ferns.
2. macrophylls in Selaginella or microphylls in ferns.
3. microphylls in Selaginella and ferns.
4. macrophylls in Selaginella and ferns.

40. The classification based on the premise that organisms belonging to the same taxa have a common ancestor is called as:
1. Cytotaxonomy
2. Phylogenetic system
3. Chemotaxonomy
4. Numerical taxonomy

41. In Cycas:

I:	coralloid roots are associated with N₂-fixing cyanobacteria
II:	the stems are unbranched
III:	the pinnate leaves persist for a few years

1.	Only I and II are correct
2.	Only I and III are correct
3.	Only II and III are correct
4.	I, II and III are correct

42. What is the correct description of a prothallus?

1.	A structure in gymnosperms formed just after fertilisation
2.	A sporophytic free living structure formed in pteridophytes
3.	A gametophytic free living structure formed in pteridophytes
4.	Sex organs bearing stage in Bryophytes

43. Which of the following pteridophytes does not belong to the same class as the other three?

1.	Dryopteris	2.	Pteris
3.	Adiantum	4.	Equisetum

44.

Match each item in Column I with one in Column II and select the correct match from the codes given:

	Column I [Pteridophyte class]		Column II [Example]
A	Psilopsida	P	Psilotum
B	Lycopsida	Q	Adiantum
C	Sphenopsida	R	Selaginella
D	Pteropsida	S	Equisetum

Codes:

	A	B	C	D
1.	P	R	Q	S
2.	P	R	S	Q
3.	P	S	R	Q
4.	Q	S	R	P

45. Which of the following statement is correct?

1.	Ovules are enclosed by ovary wall in gymnosperms
2.	Selaginella is heterosporous, while Salvinia is homosporous
3.	Pteridophytes are the first terrestrial plants to possess xylem and phloem.
4.	Stems are usually unbranched in both Cycas and Pinus

46. Which of the following will not be applicable to the gymnosperm Pinus?

1.	Coralloid roots
2.	Mycorrhizal association
3.	Male and female cones or strobili are borne on the same tree
4.	Branched stems

47. Consider the two statements:

Statement I:	Green algae are usually grass green due to the dominance of pigments chlorophyll a and b.
Statement II:	Red algae vary in colour from olive green to various shades of brown depending upon the amount of fucoxanthin.

1. Statement I is correct; Statement II is correct
2. Statement I is incorrect; Statement II is correct
3. Statement I is correct; Statement II is incorrect
4. Statement I is incorrect; Statement II is incorrect

48. Consider the two given statements:

Assertion (A):	The spread of living pteridophytes is limited and restricted to narrow geographical regions.
Reason (R):	Pteridophytes are terrestrial plants that possess vascular tissues – xylem and phloem.

1.	Both (A) and (R) are True and the (R) correctly explains (A)
2.	(A) is True but (R) is False
3.	(A) is False but (R) is True
4.	Both (A) and (R) are True but (R) does not correctly explain (A)

49.

The given diagram shows :

1. An alga that lacks flagellated cells
2. A liverwort
3. A heterosporous pteridophyte
4. A gymnosperm with non-motile sperms

50. All the following will be correct for bryophytes in general, except:

1.	The sex organs are multicellular.
2.	The female sex organ called archegonium is flask-shaped and produces a single egg.
3.	They produce biflagellate antherozoids.
4.	Zygotes undergo reduction division immediately.

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