Question

photorespiration

• one of the biggest problems in plants is _-

water loss through the stomata of leaves.

• on hot, dry days, plants close their stomata to

conserve water.

• this limits photosynthesis as co, levels decline and o,

levels build up.

• this causes _, where o, is added to the

calvin cycle instead of co,

• photorespiration is considered wasteful, because no

atp or sugar is produced by this process, while a lot of
the carbon compounds in the plant are consumed.

Explanation:

Plants face water loss via leaf stomata. On hot - dry days, stomata close to conserve water. This leads to a situation where \(O_2\) enters the Calvin cycle instead of \(CO_2\) (photorespiration). The first blank is about the problem (water loss), and the second blank is the process (photorespiration).

Answer:

The first blank: water loss; The second blank: photorespiration