Page 90 - Biology - XII

COMPETENCY BASED QUESTIONS

Multiple Choice Questions

Q1. Identify the set consisting of plants that produce unisexual fl owers
(a) Mustard, Cucumber, Petunia (b) Rose, Petunia, Corn

(c) Cucumber, Corn, Papaya (d) More than one of the above
Q2. Relationship between a fl ower and honey-bee will help the fl ower for/in
(a) Faster development (b) Pollination

(c) Quick germination of pollen (d) None of the above
Q3. Which one of the following combination of events represent the correct sequence during
reproduction in fl owering plants?
(a) Egg → zygote, zygote → embryo; ovule → seed, ovary → fruit

(b) Embryo → Egg, ovary → fruit; ovule → zygote, zygote → seed
(c) Ovary → fruit, zygote → egg; embryo → ovule, seed → fruit
(d) None of the above

Q4. Transfer of pollen grains from the anther to the stigma of another fl ower of the same plant is
called _______________ .

(a) Autogamy (b) Geitonogamy (c) Xenogamy (d) None of the above
Q5. The correct sequence of parts of female reproductive organ in plants

(a) Ovary, Style, Thalamus and Stigma (b) Stigma, Style, Ovary and Thalamus
(c) Ovary, Stigma, Style and Thalamus (d) Style, Stigma, Ovary and Thalamus
Q6. _______________ is a unisexual fl ower.

(a) Papaya (b) Mustard (c) Hibiscus (d) Sunfl ower
Q7. The sexual reproductive part of the plant are _______________ .
(a) Flowers (b) Stamens (c) Pistil (d) Zygote

Q8. Brophyllum, reproduces by _______________ .
(a) Vegetative propagation (b) Fragmentation
(c) Budding (d) Spore formation

Q9. What is the basis of on which the parts of the fl owers are present?
(a) Placenta (b) Sepal (c) Fallopian tube (d) Thalamus

Q10. Which of the following parts of a plant take part in sexual reproduction?
(a) Fruit and fl ower (b) Only fl ower
(c) Flower, seed and fruit (d) Fruit, Branch and seed

Answer key

1. (c), 2. (b), 3. (a), 4. (b), 5. (b), 6. (a), 7. (a), 8. (a), 9. (d), 10. (c)

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