Question

2. What is a semi-permeable membrane? Where can it be found in a cell?
3. Where are chromosomes found? Why are they important?
4. List the functions of the cell wall in plants.
5. What are plastids? Name the three different kinds of plastids and their functions.
9. Long answer questions​

Answer 1

Answer:

1. semi permeable membrane is the outer covering of the animal cells it allows only useful selected particles to move in and out of the cell, it prevent the inner substances to move out.
2. chromosomes are found in the nucleus of the cell. It is important because it contains genes.
3. cell wall protects plant cell from outer environment. It is only present in plants.It helps plant cell to withstand the hypertonic and hypotonic conditions.
4. plastids are membrane bound cell organelles in plants. the different kinds of plastids are

• luecoplasts-colourless
• chromoplasts-colourful
• chloroplast-green

Explanation:

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