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Question
What would have happened? If.........
Plasma membrane had not been selectively permeable.
Solution
The plasma membrane is selectively permeable which means it allows the entry or exit of selective materials inside and outside the cell. In its absence, the regulated movement of substances in and out of the cell will be affected.
RELATED QUESTIONS
Name the following
(a) The cell organelle which synthesizes protein.
(b) The type of plastid which stores food.
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 |
State the major function of the following :
Lysosomes
State the major function of the following :
Mitochondria:
Put a tick mark (✓) against the correct alternative in the following statement:
The vacuole contains:
State the difference between cytoplasm and protoplasm
Fill up the blank with the terms given below
______ are filled with water and dissolved substance.
Write true or false for each statement. Rewrite the false statements correctly:
Vacuoles are filled with a fluid called nucleoplasm
Analogy:
Plant organ: stem:: Animal organ: ______.
Identify the cellular structure with the help of the following clue:
It synthesizes the respiratory enzymes.
