'Brick and cell are one and the same'. Explain this sentence.

(a) A jelly-like substance is present in a cell. What is it called as? Also give its function.
(b) Give the meaning of protoplasm. Name the four elements which make up major part of protoplasm.

A cell has A as its control centre. A contains B that plays an important role in inheritance with the help of C. The cell also contains a jelly-like substance D. D contains various cell organelles like E that is essential for obtaining energy from food. The cell is surrounded by an F that is a living component. What could A, B, D, E and F be? Also write a short note on C.

The following is a brief paragraph based on cells, their structure and function, provide the missing terms and write one line about each. A biologist was looking at a cell with a ...(i)... He observed the presence of small green structures called ______(ii) __________ These structures are important as they provide the cell with __________ (iii)__________ that helps in the process of (iv) ________ The outer boundary of the cell is __________ (v) , which holds the cell together.

Rohit while gardening observed many beautiful flowering plants. He got attracted by the brightly coloured flowers and their beautiful appearance. He was curious to know about the variation of colours in flowers and asked her biology teacher about it. Teacher told her about the plastids found in plant cells.
(a) A particular plastid is responsible for the variation in colours of flowers. Which is it?
(b) Name the plastids known as kitchen of the cell.
(c) Are all plastids coloured?
(d) Will we be able to observe plastid in an animal cell?
(e) Identify values shown by Rohit.

What is a gene? What are its functions?

Describe the various parts of a cell.

Explain the functions of plastids.

Explain the position and functions of nucleus in a cell