Photosynthesis STARTER - Marmaroti, 2007

Why are plants green?

• because of chlorophyll, a green pigment

  responsible for the colour of plants

• because of haemoglobin, a green pigment

  responsible for the colour of plants

• because of xantophyll, a yellow pigment

  responsible for the colour of plants

In which part of the plant does photosynthesis take place?

• In the roots

• In the leaves

• In the whole plant

• In all green parts of the plant

Which part of the plant contains chlorophyll?

• the roots

• the leaves

• the green parts of the plant

• the whole plant

When does photosynthesis

take place?

• during the day

• continuously

• when there is light

Which is the role of the Sun

in photosynthesis?

• warms up the plants

• provides plants with the nutrients they need to survive

• provides plants with the energy required for photosynthesis

• provides heat energy for photosynthesis

Which form of energy is

necessary for photosynthesis?

• Light energy

• Light energy and heat

• Heat

• None of them

During photosynthesis, energy is...

• produced

• trapped

• lost

• stored

Which pair of substances

are used in photosynthesis?

• Carbon dioxide and oxygen

• Oxygen and water

• Carbon dioxide and water

• Oxygen and glucose

Which pair of substances is produced

during photosynthesis?

• Glucose and oxygen

• Carbon dioxide and glucose

• Oxygen and water

• Carbon dioxide and water

Chlorophyll is...

• essential for photosynthesis

• produced during photosynthesis

• irrelevant to photosynthesis

• consumed during photosynthesis