RESPIRATION

Respiration happens during:

• the day

• the night

• never

During the ........, plants exchange gases with the atmosphere.

Plants don't produce oxygen.

• true

• false

During the day, when photosynthesis happens, plants produce more...... than they need

• water

• food

• oxygen

The rest of the oxygen into the atmosphere through the leaf :

• blade

• stomata

• veins

• xylem

At night, when the photosynthesis stops, plants absorb more oxygen and release more