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Photosynthesis and Respiration Question (AQA BIOL4)

Does rate of photosynthesis in a plant change with rate of respiration? I remember hearing that as respiration increases, the rate of photosynthesis decreases, why is this?

Reply 1

jkb114

During photosynthesis, the plant needs carbon dioxide and water-- both of which are released into the air during respiration. And during respiration, the plant needs oxygen and glucose, which are both produced through photosynthesis
So they would increase at the same time and a similar rate

Reply 2

ps1265A

The link here is that as rate of photosynthesis increases, more oxygen is produced per unit of time. Essentially, this oxygen can be used for respiration.

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