Activity . Dissolve about gm of sugar in mL of water. Take mL of this solution in a test tube and add a pinch of yeast granules to it. Put a cotton plug on the mouth of the test tube and keep it in a warm place.
After or hours, put a small drop of yeast culture from the test tube on a slide and cover it with a coverslip. Observe the slide under a microscope. Wet a slice of bread, and keep it in a cool, moist and dark place. Observe the surface of the slice with a magnifying glass.
Record your observations for a week. Compare and contrast the ways in which yeast grows in the first case, and how mould grows in the second. Having discussed the context in which reproductive processes work, let us now examine how different organisms actually reproduce. The modes by which various organisms reproduce depend on the body design of the organisms.