[TYS] Biology Paper 1

Biology Pro TYS

Unit 1.2

Movement of Substances

Paper 1

Paper 2A

Paper 2B

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Question 1 of 11

1. Question
1 point(s)
Which process(es) take place only through a membrane?
- A
- B
- C
- C
Correct

Incorrect

Hint

Diffusion occurs with or without a membrane.
Question 2 of 11

2. Question
1 point(s)
The following apparatus was set up.

The level of liquid in the glass tube went up.

Which statement explains this change?
- More sugar molecules move out of the Visking tubing than move in.
- More water molecules move into the Visking tubing than move out.
- Sugar molecules move only out of the Visking tubing.
- Water molecules move only into the Visking tubing.
Correct

Incorrect

Hint

Osmosis.
Question 3 of 11

3. Question
1 point(s)
The diagram shows the apparatus used in an investigation.

After 20 minutes, there was a change in the volume of the Visking tubing contents.

Which row describes solution 1 and solution 2 and the change in volume of the Visking tubing contents?
- A
- B
- C
- D
Correct

Incorrect

Hint

Osmosis.
Question 4 of 11

4. Question
1 point(s)
Which row describes active transport?
- A
- B
- C
- D
Correct

Incorrect

Hint

It is an active process.
Question 5 of 11

5. Question
1 point(s)
A plant cell containing sap with a concentration equivalent to a 10% sugar solution is placed in a solution containing 5% sugar.

Which statement describes the movement of water?
- into the cell through the cell membrane by osmosis
- into the cell through the cell wall by osmosis
- out of the cell through the cell membrane by osmosis
- out of the cell through the cell wall by osmosis
Correct

Incorrect

Hint

Down a concentration gradient.
Question 6 of 11

6. Question
1 point(s)
Some processes occurring in organisms are listed.
1. absorption of glucose by villi
2. reabsorption of minerals by the kidney
3. translocation of sugars in the phloem
4. transpiration from the leaves of a plant
5. uptake of minerals by root hairs
6. uptake of water by root hairs
Which processes may involve respiration?
- 1, 2, 3 and 5
- 1, 3, 4 and 5
- 2, 3, 4 and 6
- 2, 4, 5 and 6
Correct

Incorrect

Hint

Processes involving respiration require energy.
Question 7 of 11

7. Question
1 point(s)
How does the cell wall help to maintain the turgor of a plant cell?
- It maintains the concentration gradient.
- It prevents mineral ions from leaving the cell.
- It prevents water from leaving the cell.
- It supports the cell membrane.
Correct

Incorrect

Hint

Cell wall is fully permeable.
Question 8 of 11

8. Question
1 point(s)
The diagrams show four identical plant cells.

The dots show the concentration of a chemical. The arrows represent the direction of movement of the chemical.

Which diagram or diagrams show a cell where active transport is taking place?
- 1 and 2
- 2 and 3
- 2 and 4
- 3 only
Correct

Incorrect

Hint

Active transport requires energy.
Question 9 of 11

9. Question
1 point(s)
The diagrams show four identical plant cells.

The number of dots represent the concentration of a chemical and the arrows show the directions in which the chemical is moving.

Which diagrams represent the cells carrying out active transport?
- 1 and 2
- 1 and 4
- 2 and 3
- 3 and 4
Correct

Incorrect

Hint

Active transport is used to move substances against a concentration gradient.
Question 10 of 11

10. Question
1 point(s)
The diagram shows a plant cell in a 5% glucose solution.

The concentration of the solution in the vacuole is equivalent to a 10% glucose solution.

Which row states where osmosis occurs and the direction of water movement?
- A
- B
- C
- D
Correct

Incorrect

Hint

Must fit the condition in the definition of osmosis.
Question 11 of 11

11. Question
1 point(s)
The diagrams show the apparatus used during an investigation.

What explains the changes in levels?
- Glucose molecules have diffused against the concentration gradient.
- The membrane allows only water molecules to diffuse through it.
- Water molecules diffuse through the membrane more rapidly than glucose molecules.
- Water molecules have diffused both up and down the concentration gradient.
Correct

Incorrect

Hint

The level of the glucose solution in the glass tube increases before decreasing back to the original level.