Biology-I-Section-A
1. 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
2. Match each item in Column I with one in Column II and select the correct match from the codes given:
|
Column I
[Algal class] |
|
Column II
[Feature of flagella] |
A |
Chlorophyceae |
P |
2, unequal, lateral |
B |
Phaeophyceae |
Q |
Absent |
C |
Rhodophyceae |
R |
2-8, equal, apical |
Codes:
|
A |
B |
C |
1. |
R |
P |
Q |
2. |
R |
Q |
P |
3. |
P |
R |
Q |
4. |
Q |
R |
P |
3. Diadelphous stamens are seen in:
1. China rose
2. Pea
3.Citrus
4. Mustard
4. A plant with the given floral formula must belong to:
% ⚥ K(5) C1+2+(2) A(9)+1 G1
1. Fabaceae
2. Solanaceae
3. Brassicaceae
4. Liliaceae
5. A and B in the given diagram respectively show:
1. |
Male thallus of Marchantia and Female thallus of Marchantia |
2. |
Female thallus of Marchantia and Male thallus of Marchantia |
3. |
Male thallus of Funaria and Female thallus of Funaria |
4. |
Female thallus of Funaria and Male thallus of Funaria |
6. Consider the following statements about the different classes of algae:
I: |
The members of Chlorophyceae have a rigid cell wall made of an inner layer of cellulose and an outer layer of pectose |
II: |
The members of Rhodophyceae do not have a flagellum |
III: |
Members of Phaeophyceae store food as floridean starch which is very similar to amylopectin and glycogen in structure |
1. |
Only I and III are correct |
2. |
Only I and II are correct |
3. |
Only II and III are correct |
4. |
All I, II and III are correct |
7. Which of the following is/are a correct match?
|
|
Fabaceae |
Solanaceae |
I. |
Ovary |
Inferior |
Monocarpellary unilocular |
II. |
Fruit |
Endospermous |
Non-endospermic |
1. Only I
2. Only II
3. Both I and II
4. Neither I nor II
8. Identify the incorrectly matched pair:
1. |
Pneumatophores |
Rhizophora |
2. |
Leaf tendrils |
Gourds |
3. |
Stilt roots |
Maize |
4. |
Palmately compound leaves |
Silk cotton |
9. In brinjal, stamens are:
1. Epipetalous
2. Epiphyllous
3. Monoadelphous
4. Six in number
10. Pyrenoids:
I: |
are found in chloroplasts of many algae. |
II: |
contain protein besides starch. |
1. Only
I is correct
2. Only
II is correct
3. Both
I and
II are correct
4. Both
I and
II are incorrect
11. Select the option where the given characters are correct match for members of Rhodophyceae:
|
Major pigments |
Stored food |
Cell wall |
Flagella |
1. |
Chlorophyll a, d; phycoerythrin |
Mannitol. Laminarin |
Cellulose, pectin, polysulphate esters |
2-8, equal, apical |
2. |
Chlorophyll a, d; phycoerythrin |
Floridean starch |
Cellulose, pectin, polysulphate esters |
Absent |
3. |
Chlorophyll a, c; Fucoxanthin |
Mannitol. Laminarin |
Cellulose and algin |
2, unequal, lateral |
4. |
Chlorophyll a, b; |
Starch |
Cellulose |
2-8, equal, apical |
12. Stamen of an angiosperm will consist of:
1. stigma
2. ovary
3. anther
4. style
13. Study the Assertion statement followed by the Reason statement given below:
Assertion (A): |
A flower with staminode is best suited for pollinating the pistil in artificial hybridisation experiments in angiosperms. |
Reason (R): |
Flowers with staminodes are unisexual and produce a large number of pollens. |
1. |
Both (A) and (R) are 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 but (R) is True. |
14. Evolutionarily, pteridophytes are the first:
1. |
plants with haplontic life cycle |
2. |
terrestrial plants with dominant gametophytic generation |
3. |
plants to produce flowers pollinated by insects |
4. |
terrestrial plants to possess vascular tissues |
15. The fruit is a drupe in:
I: Mango
II: Coconut
1. Only I
2. Only II
3. Both I and II
4. Neither I nor II
16. The figure represents the floral diagram of Family:
1. Fabaceae
2. Liliaceae
3. Solanaceae
4. Brassicaceae
17. In
Selaginella and
Equisetum:
1. |
spores produced are of one kind. |
2. |
heterospory is seen. |
3. |
gametophyte is the dominant generation in the life cycle. |
4. |
sporophylls form distinct compact structures called strobili or cones. |
18. Consider the given two statements:
Statement I: |
In a pinnately compound leaf, several leaflets are present on a common axis, the rachis, which represents the midrib of the leaf (as in neem). |
Statement II: |
In palmately compound leaves, the leaflets are attached at a common point, i.e., at the tip of the petiole (as in silk cotton). |
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 |
19. Ovary is one-chambered but becomes two-chambered due to the formation of the false septum in:
1. Argemone
2. Salvia
3. Cassia
4. Primrose
20. Consider the following statements:
I: |
Whorled phyllotaxy is seen in Alstonia. |
II: |
Flowers of mustard, datura and chilli are actinomorphic. |
III: |
The ovary in plum, peach and rose is epigynous. |
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 |
21. Unlike bryophytes and pteridophytes, in gymnosperms:
I: |
the male and the female gametophytes do not have an independent free-living existence. |
II: |
vascular tissues [xylem and phloem] are present. |
1. Only
I is correct
2. Only
II is correct
3. Both
I and
II are correct
4. Both
I and
II are incorrect
22. The members of phaeophyceae or brown algae;
1. |
are found primarily in fresh water habitats. |
2. |
possess chlorophyll a, c, carotenoids and xanthophylls. |
3. |
store food as glycogen. |
4. |
do not reproduce asexually. |
23. In majority of the pteridophytes:
I: |
transfer of male gamete to the female gamete does not require water |
II: |
all the spores are of similar kinds |
1. Both
I and
II are correct
2. Both
I and
II are incorrect
3. Only
I is correct
4. Only
II is correct
24. Coralloid roots in Cycas are associated with nitrogen fixing:
1. |
Rhizobium |
2. |
Frankia |
3. |
Azospirillum |
4. |
Cyanobacteria |
25. A ‘protonema’ stage in the life cycle of a moss is the:
1. |
first stage in gametophyte generation |
2. |
second stage in gametophyte generation |
3. |
first stage in sporophyte generation |
4. |
second stage in sporophyte generation |
26. Which of the following pteridophytes does not belong to the same class as the other three?
1. Dryopteris
2. Pteris
3. Adiantum
4. Equisetum
27. Colchicum autumnale:
1. is non-endospermous
2. has dithecous anther
3. has reticulate venation
4. exhibits axile placentation
28. Regarding the aestivations shown in the given figure:
I: |
A is seen in Calotropis. |
II: |
B is seen in Pea. |
1. Only
I is correct
2. Only
II is correct
3. Both
I and
II are correct
4. Both
I and
II are incorrect
29. Study the given diagram and select the correct statements:
Statement I: |
A is micropyle through which the pollen tube had entered into the embryo sac. |
Statement II: |
B is hilum through which the developing seeds were attached to the fruit. |
1.
Statement I is correct;
Statement II is correct
2.
Statement Iis correct;
Statement II is incorrect
3.
Statement I is incorrect;
Statement II is correct
4.
Statement I is incorrect;
Statement II is incorrect
30. What structure covers the embryonic root in monocots?
1. hypodermis
2. scutellum
3. coleorhiza
4. radicle
31. In a floral formula, the symbols \(\over{G}\) and \(\oplus\) respectively denote:
1. Superior ovary and Zygomorphic flower
2. Inferior ovary and Zygomorphic flower
3. Superior ovary and Actinomorphic flower
4. Inferior ovary and Actinomorphic flower
32. Identify the incorrectly matched pair:
|
Pteridophyte class |
Example |
1. |
Psilopsida |
Adiantum |
2. |
Lycopsida |
Lycopodium |
3. |
Sphenopsida |
Equisetum |
4. |
Pteropsida |
Dryopteris |
33. Correct position of floral parts over thalamus in the guava plant is:
1. |
Gynoecium occupies the highest position, while the other parts are situated below it. |
2. |
Margin of the thalamus grows upward, enclosing the ovary completely, and other parts arise above the ovary. |
3. |
Gynoecium is present in the center and other parts cover it partially. |
4. |
Gynoecium is situated in the center, and other parts of the flower are located at the rim of the thalamus, at the same level. |
34. The leafy stage in the life cycle of a moss:
1. |
develops from the primary protonema. |
2. |
consists of upright, slender axes bearing spirally arranged leaves. |
3. |
is attached to the soil through unicellular and unbranched rhizoids. |
4. |
lacks the sex organs. |
35. The reduced male gametophyte in a gymnosperm is called a:
1. pollen grain
2. microsporangium
3. microsporophyll
4. antheridium
Biology-I-Section-B
36. Regarding regions of roots in angiosperms
I: |
the apex is covered by a thimble-like structure called the root cap |
II: |
cells of the region of meristematic activity divide repeatedly |
III: |
Root hairs are found in the region of elongation |
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
37. What part of the flower in an angiosperm becomes the fruit after fertilization?
1. the stamen
2. the pistil
3. the ovule
4. the ovary
38. How many of the given statements are correct regarding economic importance of algae?
I: |
Many species of Porphyra, Laminaria and Sargassum are used as food. |
II: |
Hydrocolloids (water holding substances), e.g., algin from red algae and carrageen from brown algae are used commercially. |
III: |
Agar is obtained from Gelidium and Gracilaria. |
IV: |
Chlorella a unicellular alga rich in proteins is used as food supplement. |
1. 1
2. 2
3. 3
4. 4
39. The pattern where a dominant, independent, photosynthetic, thalloid or erect phase is represented by a haploid gametophyte and it alternates with the short-lived multicellular sporophyte totally or partially dependent on the gametophyte for its anchorage and nutrition is seen in:
1. Pteridophytes
2. Bryophytes
3. Gymnosperms
4. Angiosperms
40. How many of the given pairs are correctly matched?
A: |
Actinomorphic flower |
Pea |
B: |
Zygomorphic flower |
Mustard |
C: |
Asymmetric flower |
Canna |
1. 0
2. 1
3. 2
4. 3
41.
Statement I: |
Red algae do not occur in well-lighted regions close to the surface of water. |
Statement II: |
Red algae reproduce by non-motile spores and non-motile gametes. |
1. |
Statement I is correct; Statement II is correct |
2. |
Statement I is correct; Statement II is incorrect |
3. |
Statement I is incorrect; Statement II is correct |
4. |
Statement I is incorrect; Statement II is incorrect |
42. 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. |
43. Artificial systems of classification give equal weightage to vegetative and sexual characteristics which is not acceptable because:
1. |
Sexual characters are not genetically determined |
2. |
Vegetative characters are more easily affected by environment |
3. |
Sexual characters are not easily observable in living beings |
4. |
Vegetative reproduction is equally common as sexual reproduction |
44. All the following are members of family Malvaceae except:
1. Gossypium species
2. Abelmoschus esculentus
3. Arabidopsis thaliana
4. Hibiscus rosa-sinensis
45. Green algae usually have a rigid cell wall made of:
1. |
an inner layer of cellulose and an outer layer of pectose |
2. |
an inner layer of pectose and an outer layer of cellulose |
3. |
an inner layer of cellulose and an outer layer of lignin |
4. |
an inner layer of cellulose and an outer layer of chitin |
46. Consider the given two statements:
Assertion(A): |
In cymose type of inflorescence, the main axis is limited in growth. |
Reason (R): |
In cymose type of inflorescence, the flowers are borne in a basipetal order. |
1. |
Both (A) and (R) are True and (R) correctly explains (A). |
2. |
Both (A) and (R) are True but (R) does not correctly explain (A). |
3. |
(A) is True; (R) is False |
4. |
Both (A) and (R) are False |
47. The classification system given by Bentham and Hooker is a/an:
1. Artificial system
2. Natural system
3. Phylogenetic system
4. Useless system
48. How many of the given pairs are correctly matched?
|
Leaf modification for |
Example |
A: |
Protection |
Argemone |
B: |
Mechanical support |
Pea |
C: |
Storage of food |
Onion |
D: |
Trapping insects |
Nepenthes |
1. 1
2. 2
3. 3
4. 4
49. Although a root system performs many functions, a fibrous root system may especially be excellent for:
1. storage of food
2. absorbing water from the deeper layers of soil
3. nitrogen fixation
4. providing good anchorage to the plant
50. How many of the given statements regarding various modifications in leaves are correct?
I. |
Leaves are modified into tendrils for climbing as in pea. |
II. |
Leaves are modified into spines for defence as in cacti. |
III. |
The leaves of onion and garlic store food. |
IV. |
In Australian acacia, petioles expand, become green and synthesize food. |
V. |
The trapping structure of venus fly trap and pitcher of pitcher plant are modified leaves. |
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