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1. Coralloid root is the feature of:
(a) Cycas
(b) Mosses
(c) Pinus
(d) Selaginella
Ans. (a)
2. Which of the following is an edible ‘Fungi’?
(a) Mucor
(b) Penicillium
(c) Agaricus
(d) Rhizopus
Ans. (c)
3. Chromosome complement with 2n—1 is called as:
(a) Monosomy
(b) Nullisomy
(c) Trisomy
(d) Tetrasomy
Ans. (a)
4. Energy transferred from one trophic level to another is
(a) 5%
(c) 15%
(b) 10%
(d) 20%
Ans. (b)
5. The bioassay of auxin is:
(a) Avena curvature test
(b) Callus formation
(c) Culture of fungus
(d) Seed dormancy
Ans. (a)
6. Coir which is obtained from fruit of coconut is:
(a) Endocarp
(b) Periderm
(c) Mesocarp
(d) Epicarp
Ans. (c)
7. Solarisation is:
(a) Formation of chlorophyll
(b) Destruction of chlorophyll
(c) Utilisation of sunlight
(d) Effects of solar light
Ans. (b)
8. The most primitive in the following are:
(a). cyanobacteria
(b) Bryophytes
(c) Gymnosperms
(d) Monocots
Ans. (a)
9. Bacteria are considered plant because they:
(a) Are green in color
(b) Have rigid cell wall
(c) Have chlorophyll
(d) Have stomata
Ans. (b)
10. Which is not a monocot?
(a) Rose
(b) Orchids
(c) Palms
(d) Banana
Ans. (a)
11. Endoplasmic reticulum is in continuation with:
(a) Golgi body
(b) Nuclear wall
(c) Mitochondria
(d) Cell wall
Ans. (b)
12. ‘Pneumatophores’ are present /common in:
(a) Xerophytes
(b) Hygrophytes
(c) Mesophytes
(d) Halophytes
Ans. (d)
13. During the G1-phase of cell division:
(a) RNA and proteins are synthesized
(b) DNA and proteins are synthesized
(c) Cell prepares for M-phase
(d) Cell undergoes duplication
Ans. (a)
14. During the meiotic division, the:
(a) Homologous chromosomes are separated
(b) The linkage is disturbed
(c) The homologous chromosomes do not segregate
(d) all of the above
Ans. (a)
15. In Cycas, pollination takes place in:’
(a) 3 celled stage
(b) 4 celled stage
(c) 2 celled stage
(d) 1 celled stage
Ans. (a)
16. Trimerous flower, superior ovary and axile placentation is characteristics of:
(a) Liliaceae
(b) Cucurbitaceae
(c) Solanaceae
(d) Compositae
Ans. (a)
17. Viruses possess:
(a) DNA only
(b) Nucleic acid, DNA or RNA
(c) Protein only
(d) Nucleic acid and protein
Ans. (d)
18. Maximum absorption of rainfall water is done by:
(a) Tropical deciduous forest
(b) Tropical evergreen forest
(c) Tropical savanna
(d) Scrub forest
Ans. (b)
19. Which of the following is responsible for synthesis of enzyme in seed germination?
(a) IAA
(b) Gibberellin
(c) Cytokinin
(d) Ethylene
Ans. (b)
20. Which of the following form is an algae?
(a) Equisetum
(b) Selaginella
(c) Marsilea
(d) None of these
Ans. (d)
21. Most primitive members in which roots are not present, is
(a) Psilotum
(b) Rhynia
(c) Lycopodium
(d) Selaginella
Ans. (b)
22. In which form does the food transported in plants?
(a) Sucrose
(b) Fructose
(c) Glucose
(d) Lactose
Ans. (a)
23. Largest flower is:
(a) Rafflesia
(b) Lotus
(c) Rose
(d) Lily
Ans. (a)
24. Lady finger belongs to family:
(a) Malvacea
(b) Cucurbitaceous
(c) Liliaceous
(d) Brassicaceae
Ans. (a)
25. Which of the following is biogas?
(a) CO₂
(b) NO₂
(c) CH₄
(d) N₂
Ans. (c)