O Level Pure Biology TYS Movement of Substances

Which process(es) take place only through a membrane?

The following apparatus was set up.

The level of liquid in the glass tube went up.

Which statement explains this change?

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?

Which row describes active transport?

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?

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?

How does the cell wall help to maintain the turgor of a plant cell?

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?

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?

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?

The diagrams show the apparatus used during an investigation.

What explains the changes in levels?