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In this IBDP Biology blog post, we will see the different locations where aqueous solutions are present in different parts of the body, let's go!
Common reactions

Cytoplasm
Fluid inside cell but outside organelles
Glycolysis/protein synthesis reactions
Nucleoplasm
Fluid inside nuclear membrane
DNA replication/transcription

Stroma
Fluid inside chloroplast membrane
Light-independent reactions of photosynthesis

Blood plasma
Fluid in arteries, veins and capillaries
Loading and unloading of respiratory gases/clotting
That is all the main compenents!

References:
- https://www.google.com/url?sa=i&url=https%3A%2F%2Fwww.toppr.com%2Fguides%2Fbiology%2Fcell-the-unit-of-life%2Fcytoplasm-function-and-facts%2F&psig=AOvVaw0u0-yhLktL9eC269kg6S_W&ust=1627580794979000&source=images&cd=vfe&ved=0CAsQjRxqFwoTCICKlpOphvICFQAAAAAdAAAAABAD
- https://www.google.com/url?sa=i&url=https%3A%2F%2Fbmcplantbiol.biomedcentral.com%2Farticles%2F10.1186%2F1471-2229-14-175&psig=AOvVaw2tiz1bzMs9oYadXNPZ3s-i&ust=1627580855157000&source=images&cd=vfe&ved=0CAsQjRxqFwoTCJjb3amphvICFQAAAAAdAAAAABAJ
- https://www.google.com/url?sa=i&url=https%3A%2F%2Fwww.oneblood.org%2Fabout-donating%2Fblood-donor-basics%2Fwhat-is-blood%2F&psig=AOvVaw13NYPVCtlgxDWw4zYHR_cA&ust=1627580917889000&source=images&cd=vfe&ved=0CAsQjRxqFwoTCNjsksephvICFQAAAAAdAAAAABAD
Drafted by Venetia (Biology)