Test: Photosynthesis - Year 11 MCQ

To absorb water

To reflect sunlight

To absorb light energy

To release oxygen

To make the leaf more flexible

To break down cell membranes

To remove chlorophyll

To kill the leaf and stop all cell processes

It is always used immediately for energy

It is stored as starch, converted to cellulose, or used for respiration

It is lost to the environment

It is only used for nectar production

To increase light intensity

To absorb heat and prevent water temperature changes

To block light from reaching the beaker

To measure the volume of oxygen produced

By measuring its temperature

By counting the number of bubbles produced in water

By checking its color under a microscope

By measuring the leaf’s weight

To remove chlorophyll

To make starch visible as blue-black

To provide energy to the leaf

To change the leaf’s color to green

It decreases the rate

It has no effect

It initially increases the rate until another factor becomes limiting

It only affects the rate at night

Enzymes involved in photosynthesis become more efficient at higher temperatures

High temperatures can denature enzymes, reducing the rate of photosynthesis

Low temperatures enhance enzyme activity

Temperature does not affect the rate of photosynthesis

Increasing the distance between the lamp and the beaker

Using a higher wattage lamp

Decreasing the temperature of the water

Adding more carbon dioxide to the water

To show that chlorophyll is not needed for photosynthesis

To test areas with and without chlorophyll for starch presence

To increase the leaf’s photosynthetic rate

To make the leaf easier to observe under a microscope