Biology
Flowers borne on the shoot system of a plant serve as reproductive part. Which of the following reasons supports this statement ?
P. Flowers bear stamens and carpels.
Q. Flowers make the plant attractive.
R. Flowers produce fruits with seeds.
- Only P
- Only Q
- Only P and R
- Only Q and R
Reproduction in Plants
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Answer
Only P and R
Reason — Flowers contain stamens (male reproductive organs) and carpels (female reproductive organs) which are essential for fertilization. Flowers develop into fruits after fertilization, and these fruits contain seeds, which are the next generation of plants.
Flowers indeed make the plant look attractive, but this does not serve the purpose of being the reproductive part of a plant.
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Related Questions
Grafting is a method of :
- Artificial vegetative propagation
- Sexual reproduction
- Artificial pollination
- Cross-pollination
Sanjay, a research scholar wants to develop a disired variety of Guava in his orchard. Which of the following methods of vegetative propagation will be the most suitable for him?
- Cutting
- Grafting
- Layering
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Mamta is curious to study different kinds of pollination among flowers present in her garden. She has performed artificial pollination in the following ways :
P. Pollination within a flower.
Q. Pollination between flowers of same plant.
R. Pollination between two flowers of two different plants of same species.
S. Pollination between two flowers of two different plants of the different species.Which of the ways given abo explains 'cross-pollination'?
- Only R
- Only P, Q and S
- Only P, R and S
- Only P and S
Cross-pollination is considered better than self-pollination because it produces healthier and more viable seeds. But it cannot occur by itself. Cross-pollination occurs with the help of certain agents like wind, water, insects, etc. Which of the following features of flowers are not suitable for insect-pollination ?
P. Flowers are usually small and of dull colours.
Q. Flowers are not scented and do not produce nectar.
R. Flowers produce sticky pollen grains.- Only Q
- Only Q and R
- Only P and R
- Only P and Q