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Write the functions of mitochondria, golgi bodies and ribosomes.
Mitochondria : It performs the function of respiration and provides the cell with energy. It is called the power house of cell.
Golgi bodies : These collect and distribute substances made in cell, synthesis and secretions of many materials.
Ribosomes : They help in the synthesis of proteins.
Make a sketch of the human nerve cell. What function do nerve cells perform?
Write short notes on the following :
Cytoplasm
Write short notes on the following :
Nucleus of a cell
Which part of the cell contains organelles?
Make sketches of animal and plant cell. State three differences between them.
State the difference between eukaryotes and prokaryotes.
Where are chromosomes found in a cell? State their function.
‘Cells are the basic structural units of living organism.’ Explain.
Explain why chloroplasts are found only in plant cells?
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. Unit 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.
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