IGCSE Biology Paper-2: Specimen Questions with Answers 3 - 4 of 203
Passage
The diagram shows two solutions of strong glucose and weak glucose solution, which are separated by a partially permeable membrane. This membrane will allow the transfer of water molecules not glucose molecules.
Question 3 (1 of 2 Based on Passage)
Question MCQ▾
The diagram shows two solutions of strong glucose and weak glucose solution, which are separated by a partially permeable membrane. This membrane will allow the transfer of water molecules not glucose molecules. As a result?
Choices
Choice (4) | |
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a. | No change will occur in both solutions |
b. | Water can move from the left to right |
c. | Water can move from the right to the left |
d. | From left to right against their concentration gradient |
Answer
c.Explanation
The diagram shows two glucose solutions of strong glucose and weak glucose solution, which are separated by a partially permeable membrane. This membrane will allow the transfer of water molecules not glucose molecules. As a result water can move from the right, where there is high concentration of water molecules is present, to the left, where water concentration is low.
Question 4 (2 of 2 Based on Passage)
Question MCQ▾
The above diagram shows which type of process?
Choices
Choice (4) | |
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a. | Osmosis |
b. | Reverse osmosis |
c. | Dissolution |
d. | Active transport |
Answer
a.Explanation
Osmosis is the result of diffusion by a semipermeable membrane. A semipermeable membrane separates two different concentration՚s solution and movement across the membrane from the low solute concentration to the more solute concentrated solution. This process is called osmosis.