organisms, such as animals, that cannot use the sun's energy directly.

one of the principal chemical compounds that living things use to store energy

a process where plants use the energy of sunlight to convert water and carbon dioxide into oxygen and high-energy carbohydrates-sugars

light absorbing molecules that plants use to gather the sun’s energy

the plants’ principal pigment

saclike photosynthetic membranes

the region outside the thylakoid membranes

a compound carrier molecule

reactions that require light

a protein inside the membrane which allows H+ ions to pass through it

where plants use the energy that ATP and NADPH contain to build high-energy compounds that can be stored for a long time

the amount of energy needed to raise the temperature of 1 gram of water 1 Celsius degree.

the process in which one molecule of glucose is broken in half, producing two molecules of pyruvic acid, a 3-carbon compound.

the process that releases energy by breaking down food molecules in the presence of oxygen.

an electron carrier that accepts a pair of high-energy electrons.

a process that releases energy from food molecules in the absense of oxygen

not in air

pathways that require oxygen

the second stage of cellular respiration

a transport chain that uses high-energy electrons from the Krebs cycle to convert ADP into ATP