Biology
Draw a neat diagram of male (♂) and female (♀) reproductive organs of a flower.
(a) Label two important parts of the male reproductive organ.
(b) Label four important parts of the female reproductive organ.
(c) Write the collective name/whorl of each reproductive organ.
(d) Name the unicellular, sexual structures produced in each.
(e) Name the parts of the female reproductive organ that develop into a fruit and seed respectively.
Flower
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Answer
Below is the labelled diagram of male (♂) and female (♀) reproductive organs of a flower:
(c) The collective name of male reproductive organs is Androecium and female reproductive organs is Gynoecium.
(d) Pollen grains are produced in male reproductive organs and Ovules are produced in female reproductive organs.
(e) Ovary develops into fruit and Ovules develop into seeds, respectively.
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The figure given alongside represents generalised arrangement of the different parts of a bisexual flower. Name the parts numbered 1-10.
Given alongside are two figures (A & B) of a certain part of a flower. Study the figures carefully and answer the following questions:
(a) Which major organ of a flower does the figure A represent? What is the collective term for this organ?
(b) Are the contents of the pollen sacs in B, male or female?
(c) Can you state how the contents of the pollen sacs would come out?
Draw either an entire flower or a part of it showing the following conditions :
(a) Polysepalous calyx
(b) Gamosepalous calyx
(c) Polypetalous corolla
(d) Gamopetalous corolla
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