Light-Dependent Reaction

Phase of photosynthesis where light energy is captured and converted to ATP

Process where chemical bonds are broken and new ones are formed

Organelle that absorbs sunlight and synthesizes organic compounds

The second of two light energy harvesting units of a chloroplast's thylakoid membrane; recharges NADP+ into NADPH

Protein that produces ATP using energy from H+ ions

Light-independent reactions that use CO2 and ATP/NADPH to make sugars

Electron Transport Chain

A sequence of electron carrier molecules that shuttle electrons during redox reactions to release energy used to make ATP.

Stack of thylakoids where light energy is trapped

Fluid in the chloroplast involved in synthesizing organic molecules

Organism that makes its own food

Organism that obtains energy from consuming food

Microscopic pores in leaves and stems for gas exchange

All chemical reactions within an organism

Negatively charged subatomic particles

A collection of pigment molecules that serve as the light collecting unit in thylakoid membranes.

An electron carrier molecule that picks up high-energy electrons from chlorophyll to form NADPH.

An electron carrier involved in photosynthesis, providing high-energy electrons for the Calvin cycle.

Ribulose biphosphate; a five-carbon carbohydrate that combines with CO2 in the Calvin Cycle.

Phosphoglycerate; a three-carbon molecule formed in the first step of the Calvin cycle.

A three-carbon molecule formed in the second step of the Calvin cycle used to make other organic compounds.

The first of two light energy harvesting units in a chloroplast's thylakoid membrane; splits water to produce ATP.

Light-dependent reactions

Reactions in photosynthesis that use energy from light to produce ATP, NADPH, and oxygen gas.

Light-independent reactions (Calvin Cycle)

Reactions in photosynthesis that do not require light; use ATP and NADPH to build high-energy compounds.

An iron-containing protein that is a component of electron transport chains in the mitochondria and chloroplasts of eukaryotic cells and the plasma membranes of prokaryotic cells

Accessory pigments that broaden the spectrum of colors that can drive photosynthesis.

An alternative pathway, prefacing the Calvin Cycle, that enables certain plants to fix CO2 into four carbon compounds called oxaloacetic acid. The purpose is to store CO2 until it is needed.

a water-conserving, carbon-fixing process; CAM plants take in carbon at night and fix it into various organic compounds and release it during the day

a chemical change in which electrons are gained, either by the removal of oxygen, the addition of hydrogen, or the addition of electrons

A chemical reaction involving the transfer of one or more electrons from one reactant to another; also called oxidation-reduction reaction.

A process for synthesizing ATP using the energy of an electrochemical gradient (high concentration of H+ ions in the lumen / low concentration in the stroma) and the ATP synthase enzyme.

A plant that uses the Calvin cycle for the initial steps that incorporate CO2 into organic material, forming a three-carbon compound, 3-PGA, as the first stable intermediate. About 85% percent of the plant species on the planet are C3 plants, including rice, wheat, soybeans and all trees.

Photosynthesis Equation

6CO2 + 6H2O --> light energy --> C6H12O6 + 6O2 (6 molecules of carbon dioxide + 6 molecules of water yields 1 molecule of glucose + 6 molecules of oxygen)

Photosynthesis Vocabulary Flashcards

Student preview

39 questions

Show all answers

1.

FLASHCARD QUESTION

Front

Photosynthesis

Back

Conversion of light energy into chemical energy

2.

FLASHCARD QUESTION

Front

ATP

Back

Main energy source for cells

3.

FLASHCARD QUESTION

Front

ADP

Back

Molecule formed when a phosphate group is removed from ATP

4.

FLASHCARD QUESTION

Front

Chemosynthesis

Back

Process by which certain bacteria use chemical energy to produce carbohydrates

5.

FLASHCARD QUESTION

Front

Chlorophyll

Back

Green pigment that absorbs light energy for photosynthesis

6.

FLASHCARD QUESTION

Front

Thylakoid

Back

Flattened sac inside a chloroplast where light energy is converted to chemical energy

7.

FLASHCARD QUESTION

Front

Light Independent Reactions

Back

Photosynthesis reactions that do not require light, using ATP and NADPH to build high-energy compounds

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