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Plant Kingdom - Part 1
1
of
25
Q1. The horizontal underground stem of the Curcuma plant is called.
A. Rhizome
B. Corm
C. Bulb
D. Runner
Q2. Some plants flower only once in their lifetime. They are called.
A. Monocarpic
B. Monogamous
C. Monogenic
D. Monomorphic
Q3. The smallest living cell is that of a.
A. Bacterium
B. Bread mold
C. Mycoplasm
D. Virus
Q4. Which one of the following bears the smallest seeds?
A. Grasses
B. Legumes
C. Orchids
D. Sedges
Q5. Litmus is obtained from.
A. An alga
B. A bacterium
C. A fungus
D. Lichen
Q6. Double fertilization is a special feature of.
A. Angiosperms
B. Ferns
C. Gymnosperms
D. Mosses
Q7. A true fruit develops from the.
A. Anther
B. Carpel
C. Ovary
D. Ovule
Q8. It has been demonstrated that even mature plant cells,when freed from others,are able to develop into new plants. This phenomenon is called.
A. Apogamy
B. Parthenogenesis
C. Somatogenesis
D. Totipotency
Q9. Fruits infested with larvae of pests,imported from abroad are more dangerous in Pakistan than in the country of their origin since.
A. They will cause afforestation
B. They cannot be eliminated in Pakistan
C. Natural predators with prey on them are not available in Pakistan
D. They are likely to transmit exotic diseases to the crops in Pakistan
Q10. A spore is.
A. A commonly used medicine for cultivating bacteria
B. A common seaweed found in tropical regions
C. A reproductive unit of plants, protozoa and bacterias
D. A pore in the human skin
Q11. The pollen grains in plants are produced in plants are produced in the.
A. Anther
B. Carpel
C. Ovary
D. Ovule
Q12. The materialistic tissues are composed of.
A. Mature cells
B. Immature cells
C. Permanent cells
D. None of these
Q13. A grain of wheat is.
A. Embryo
B. Seed
C. Fruit
D. Seed and fruit
Q14. The red rust of tea is caused by.
A. A bacterium
B. Fungus
C. Green alga
D. Virus
Q15. What are the sites of bacteria in leguminous plants for fixing nitrogen?
A. Leaves
B. Root nodules
C. Root hairs
D. Stem
Q16. Dichotomous branching refers to the branching of a plant into.
A. Four
B. Three
C. Two
D. Many branches
Q17. The male part of a flower is called.
A. Androecium
B. Calyx
C. Thalamus
D. Gynoecium
Q18. Pollination means.
A. Development of pollen grains in f lowering plants
B. Germination of pollen grains on the stigma
C. Transfer of pollen grains from the stigma of one flower to another flower by wind water insects or some other agency
D. Transfer of pollen grains from the anther to the stigma of the same/dif ferent plant
Q19. Tomato brinjal,potato, tobacco,petunia and night jasmine belong to.
A. The same plant family
B. Two plant families
C. Three plant families
D. Five plant families
Q20. Which one of the following is not a fruit?
A. Coconut
B. Chilgoza
C. Mango
D. Wheat grain
Q21. Plantain is.
A. Atree
B. An annual herb
C. A perennial herb
D. A shrub
Q22. Hypogeal germination is found in.
A. Castor
B. Onion
C. Bean
D. Bengal gram
Q23. The germination of bean seed is said to be epigeal germination because.
A. The leaves are born outside the soil
B. The roots do not come out of the soil
C. With cotyledons are brought out of the soil
D. The roots come out of the soil
Q24. Smallest flowering plant is.
A. Raffesia
B. Polyalthia
C. Wolffia
D. Chlaymydomonas
Q25. Radish is a.
A. Bulb
B. Corm
C. Modified root
D. Tuber
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