Biology Core Edition Cell Energy

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chapters 8.1 8.2 9.1 and 9.3

Pigment

Light-absorbing molecule

Chlorophyll

Green pigment in plants that absorbs light energy used to carry out photosynthesis

Thylakoids

Saclike photosynthetic membranes where pigments, such as chlorophyll, are located

Stroma

The fluid of the chloroplast surrounding the thylakoid membrane; involved in the synthesis of organic molecules from carbon dioxide and water

NADP+

One of the carrier molecules that transfers high-energy electrons from chlorophyll to other molecules

Light-dependent Reactions

reactions of photosynthesis that use energy from light to produce ATP and NADPH

Light-independent Reactions

phase of photosynthesis where energy form light dependent reactions is used to produced glucose and additional ATP molecules

calorie

The amount of energy needed to raise the temperature of one gram of water one degree Celsius; 1 Calorie is equal to 1000 calories

Cellular Respiration

The process that releases energy from food in the presence of oxygen

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