Photosynthesis Year 9

Plants often turn some of the food they make into another substance for storage. The name of this substance is:

• glucose

• fibre.

• starch

• pasta

Which of these shows the correct word equation for photosynthesis?

• glucose + carbon dioxide ® water + oxygen (+ energy)

• glucose (+ energy) ® oxygen + glycerol

• water + carbon dioxide (+ energy) ® glucose + oxygen

• chlorophyll + carbon dioxide ® water + glycogen

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

Aerobic respiration is a process which:

• stores chemical energy in food

• makes food for plants living under water.

• does not happen in plants but only in humans when they exercise hard.

• releases energy from food.

Tags

NGSS.MS-LS1-7

Leaves are often wide so that they can:

• absorb as much sunlight as possible

• catch as much rain as possible.

• provide shelter for animals living under them

• float to the ground when they drop in autumn

Gases get into and out of a leaf by:

• diffusion

• conduction.

• absorption.

• convection.

Look at this list of substances.

glucose fat cellulose protein

Which of these substances can plants make?

• glucose and cellulose only

• glucose, cellulose and fat

• glucose, cellulose and protein

• all of them

Tags

NGSS.MS-LS1-6

Plants need cellulose to:

• store energy.

• repair damaged cells.

• make cell walls.

• make cell surface membranes.

The picture shows a cell from a root.

What is it called?

• xylem cell

• root cortex cell

• root palisade cell

• root hair cell

If plants do not get enough water they start to:

• shrink.

• grow towards the light.

• grow bigger roots.

• wilt.

Tags

NGSS.MS-LS1-5

NGSS.MS-LS2-1

One important type of mineral salt is:

• nitrate.

• sodium chloride.

• clay.

• loam.