English Medium कक्षा १० - CBSE Question Bank Solutions for Science

Trace the path a male gamete takes to fertilise a female gamete after being released from the penis.

State the number of sets of chromosomes present in a zygote.

Sexual maturation of reproductive tissues and organs are necessary link for reproduction. Elucidate.

Name the reproductive parts of an angiosperm. Where are these parts located? Explain the structure of its male reproductive part.

In flowering plants, the pollen grains are transferred to stigma by pollination but the female germ cells are present in the ovary.
Explain with the help of a labelled diagram (only concerned parts), how the male germ cell reaches the ovary.

Consider the following three flowers namely X, Y and Z. Which flower(s) would develop into a fruit?

Flower X	Flower Y	Flower Z

Explain the post fertilization changes that occur in the ovary of a flower.

Given below is a diagram of a germinating seed. Label the parts that:

1. gives rise to future shoot.
2. gives rise to future root system.
3. stores food. 

State the post-fertilisation changes that lead to fruit formation in plants.

What is the common name of the compound CaOCl₂?

Which compound of calcium is used for disinfecting drinking water supply?

Name one compound of calcium which is used for removing the colour of a coloured cloth.

What is “baking powder”?

State two uses of the following compound:

Chlorine

What is the common name of the compound CaOCl₂?

What is bleaching powder?