Biology
Draw a neat and labelled diagram of the section of a typical flower. From the parts labelled by you, name the parts matching the description given below :
(a) This part attaches the flower to the shoot.
(b) The flattened part of the pedicel.
(c) The outermost whorl of the flower.
(d) The male reproductive organ of the flower.
(e) The part of carpel which receives pollen grains.
Reproduction in Plants
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Answer
Below labelled diagram shows the section of a typical flower:
(a) This part attaches the flower to the shoot — Pedicel
(b) The flattened part of the pedicel — Thalamus
(c) The outermost whorl of the flower — Calyx
(d) The male reproductive organ of the flower — Androecium
(e) The part of carpel which receives pollen grains — Stigma
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Aarav's mother bought a sack of potatoes because she planned to prepare several potato dishes for a family get-together. But the party got cancelled, so she stored the potatoes in a dark corner of the kitchen. After 2 weeks, Aarav noticed that several potatoes had developed small outgrowths that looked like tiny horns. Curious, he asked his mother if the potatoes have "gone bad". His mother told him that the potatoes have sprouted and they are actually starting to grow new plants from these outgrowths. This is a type of vegetative reproduction and these outgrowths are called buds or new shoots.
(a) Potatoes are underground, swollen parts of a plant. Do you consider them as root, fruit or stem ? Give reason in support of your answer.
(b) Aarav decided to plant one of the sprouted potatoes in the garden. Before planting, he cut the potato into smaller pieces. Will each piece grow into a new plant ? What must each piece contain in order to grow into a new plant ?
(c) Which of the following plants does not undergo vegetative propagation ?
(i) Ginger
(ii) Sugarcane
(iii) Mango
(iv) Strawberry