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Question
Identify the cellular structure with the help of the following clue:
It is made up of DNA threads.
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Solution
Chromatin fibres
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RELATED QUESTIONS
Complete the crossword with the help of clues given below.
Across
1. This is necessary for photosynthesis.
3. Term for component present in the cytoplasm.
6. The living substance in the cell.
8. Units of inheritance present on the chromosomes.
Down
1. Green plastids.
2. Formed by collection of tissues.
4. It separates the contents of the cell from the surrounding medium.
5. Empty structure in the cytoplasm.
7. A group of cells.
What are centrioles? Write about their functions.
How many chromosome pairs are found in human cells?
Match the item in column 'A' with those in column 'B'.
| Column A | Column B |
| (a) Vacuoles | (i) Intracellular digestion |
| (b) Nucleolus | (ii) Respiratory enzymes |
| (c) Lysosomes | (iii) Covered by tonoplast |
| (d) Anthocyanin | (iv) Dissolved in the cytoplasm |
| (e) Cristae | (v) Forms RNA |
Fill in the blanks :
Very thin flexible, a living membrane which is differentially permeable, is called__________.
Distinguish between the following pairs of science :
Cell wall and cell membrane
Fill up the blank with the terms given below
Plastids contain ______.
Fill in the blanks:
The jelly-like fluid that surrounds the nucleus of a cell is called ______.
Write true or false for each statement. Rewrite the false statements correctly:
Ribosomes are the sites of respiration in a cell
Name the following:
The part of cytoplasm which is devoid of the organelles.
