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These flashcards are from Biology Alberta 20 chapter 6

Photon

Packet of light

Chlorophyll

light absorbing green colored pigment that begins the process of photosynthesis

Chloroplast

a membrane bound organelle in green plant and algal cells that carry out photosynthesis

Stroma

The protein rich semiliquid material in the interior of the chloroplast

Thylakoid

a system of interconnected flattened membrane sacs forming a seperate compartment within the stroma of a chloroplast

Grana (granum)

Stacks of thylakoids

Lamellae (Lamella)

groups of unstacked thylakoids between grana

Thylakoid membrane

the photosynthetic membrane within a chloroplast that contains light gathering pigment molecules and electron transport chains

Thylakoid lumen

the fluid filled space inside the thylakoid

ATP

a molecule containing 3 high energy phosphate bonds that act as the primary energy transfer molecule of living organisms

ADP

a molecule containing 2 high energy phosphate bonds that may be formed by breaking one of the phosphate bonds of the ATP

NADP+

A compound(+) that (accepts) 1 hydrogen atom and 2 electrons, forming NADPH..an electron acceptor or taker.

NADPH

a compound that (donates) 1 hydrogen atom and 2 electrons to another molecule to reform or put back to NADP+, this one is a donar.

Light dependant reactions

the first set of reactions of photosynthesis in which light energy excites electrons in the chlorophyll molecules..powers chemiosmotic ATP synthesis and results in the (reduction) of NADP+ to NADP

Carbon Fixation

The process of incorporating CO2 into carbs

Calvin Cycle

a cyclic set of reactions occuring in the STROMA of chloroplasts that fixes the carbon of CO2 into carb molecules and recycles coenzymes..

Light (independant) reactions

the second set of reactions in the photosynthesis. (the CalvinCycle) these dont need solar energy

Photosystem

this is a cluster of photosynthetic pigments imbedded in the thylakoid membrane of a chloroplast that absorbs light energy

Electron transport chain

a series of stonger electron acceptors, every time an electron is transferred, energy is released..

Photolysis

a chemical reaction in which a compound is broken down by light. In photosynthesis (water) molecules are split by ..this.. (2 H2O +energy=4H+ + 4e- + O2 )

Energy

2 classes of energy,, kenetic and potential.. potential is stored and kenetic is moving

Oxidation

a reaction in which an Atom or molecule loses electrons(giver)

Reduction

a reaction in which an atom or molecule gains electrons(taker)

ATP Synthase complex

a special protein complex embedded in the thylakoid membrane that allows H+ ions to escape from the lumen and uses the resulting energy to generate or make ATP

Chemiomosis

a process for synthesizing ATP using the energy of an electrochemical gradient and the ATP synthase enzyme..

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