IB Biology Sub-topic C1.3 Definitions
This page contains our IB Biology definitions for sub-topic C1.3. By learning each one of these definitions, you will fully cover the content for IB Biology 'Further photosynthesis'.
chemiosmosis in photosynthesis
The process by which proton pumps use the energy of electrons to pump protons from the stroma into the thylakoid space to build a concentration gradient
photoactivation
The process by which chlorophyll reaction centers of photosystems absorb energy from light and their electrons become exited
photolysis
The process by which water is split into oxygen, protons, and electrons in the thylakoid space by an oxidized photosystem II after photoactivation
photophosphorylation
The process by which protons travel down the concentration gradient into the stroma via ATP synthase, which phosphorylates ADP into ATP
photosynthesis
The production of glucose and oxygen from light, CO2, and water, within the chloroplast
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