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Question
Where are chromosomes found in a cell? State their function.
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Solution
The nucleus contains thread-like structures called chromosomes. Chromosomes play an important role in the inheritance of characters. They carry genes that help in the transfer of characters from the parents to the offspring.
RELATED QUESTIONS
Who discovered cells and how?
Make a comparison and write down ways in which plant cells are different from animal cells.
Which part of the cell contains organelles?
Explain why chloroplasts are found only in plant cells?
Do you think the cells of an elephant would be larger than the cells of a rat? Explain briefly.
Try to find the names of four cell organells hidden in this maze, (hint: The hidden words can appear horizontally or vertically; forwards or backward or even mixed up). Write them in the lines provided. For example : “NUCLEUS” in the last row, seven backward letters.
| A | J | F | B | H | E | M | O | E | L | O | U | C | A | V |
| H | V | L | E | U | C | O | P | L | A | S | T | N | O | E |
| C | H | R | O | M | O | P | L | A | S | T | X | T | E | R |
| S | U | E | L | C | U | N | W | P | L | A | S | T | I | D |
Write a short answer.
Why is a cell called the structural unit of a living organism?
What was the contribution of the following to our knowledge of cells?
Robert Hooke
When will you use a simple microscope and when, a compound microscope? Explain in detail how you will use them.
Matching:
| 1. | Discovery of cell | a. | Nerve cell |
| 2. | Unicellular organism | b. | spirogyra |
| 3. | Multicellular organism | c. | Robert Hooke |
| 4. | Longest cell | d. | Cyanobacteria |
| 5. | Prokaryotic cell | e. | Amoeba |
