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Question
What would have happened? If.........
Plasma membrane had not been selectively permeable.
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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
What would have happened? If .........
There had been no differences between mitochondria and plastids.
Give functions.
Nucleus
Name the part of the cell concerned with the following :
Liberation of energy
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__________.
Fill in the blanks :
__________ is a plastid which stores starch.
Distinguish between the following pairs of terms :
Nucleolus and nucleus
State the major function of the following :
Golgi apparatus
Fill in the blanks:
Golgi bodies are also called ______.
Analogy:
Plant organ: stem:: Animal organ: ______.
