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Please Define the Following Key Terms

question 79

Essay

Please define the following key terms. Show Who? What? Where? When? Why Important?
-Delian League


Definitions:

Fluid-filled Sac

A structure encapsulated by membranes containing liquid, which can serve various biological functions in animals and plants.

Thylakoid Discs

Membrane-bound structures within chloroplasts where the light-dependent reactions of photosynthesis occur.

Granum

A stack of thylakoids within the chloroplasts of plant cells, crucial for the light reactions of photosynthesis.

Porphyrin Ring

A large, heterocyclic macrocycle composed of four modified pyrrole subunits interconnected via methine bridges, essential in the structure of heme groups and chlorophyll.

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