Linking two paragraphs to the same topic for importance AQA A Level Biology Essay

This might be a bad example but if one paragraph was on the calvin cycle and another was on oxyhaemoglobin dissociation and for importance i related both to respiration, would that be okay as long as the justification is specific to the main topic?

Yeah should be fine as long as the content/science part of the paragraphs are different spec points, I've done the same in mock essays and it's always been okay
Just for a bit of variety with the importances, if I was writing about the dissociation curve I'd link that to respiration and what ATP is needed for, and for importance of Calvin cycle/photosynthesis I'd talk about uses of the organic molecules made in plants, such as the cellulose cell wall allowing cells to stay turgid + have high Ψ which allows photosynthesis to keep occurring and then possibly link that to resp if I have space/time
But as long as the main bulk of the paragraph is 2 different spec points, anything related to those paragraphs is okay to write about for importance

thanks so much we haven't had the chance to do any mock essays yet in school haha so i was a little worried. that's a good point too x
good luck on wednesday by the way we've got this 🙏