Revision Quiz

Which of the following is not true about cells?

• Cells are the basic blocks of life.

• Cells with a similar function form a tissue.

• Cells have the same organelles across all organisms.

• Cells can be highly adapted to their functions.

What is the correct level of organisation in an organism?

• cells, tissue, system, organ, organism

• cell, tissue, organ, organism, system

• cell, tissue, organism, organ, system

• cell, tissue, organ, system, organism

What is the function of a red blood cell?

• to transport carbon dioxide

• to transport oxygen

• to transport mineral salts

• to transport water

Which of the following is not true about a red blood cell?

• It contains haemoglobin.

• It contains a nucleus.

• It contains cell membrane.

• It contains cytoplasm.

Which of the following is not a function of the xylem?

• transporting oxygen

• transporting mineral salts

• transporting water

• providing mechanical support to a plant

Which of the following is/are true about a root hair cell?

Tick all that applies.

• It absorbs water from the soil.

• It has a long, narrow extension.

• It has chloroplasts.

• It has a large surface area to volume ratio.

_____________ refers to the net movement of water molecules from a solution of higher water potential to a solution of lower water potential.

Water has ______________ (higher/lower) water potential than salt solution.

Which of the following is/are true about diffusion?

• It requires a concentration gradient.

• It requires energy.

• It can take place in both living and non living systems.

• It only applies to the movement of water molecules.

Osmosis requires the presence of a _________________ ________________ ___________________.