the process by which chemical changes occur; atoms are rearranged and chemical bonds are broken and formed; atoms interact to produce new materials.
a type of molecule made up of subunits of sugars and used for energy and structure.
a type of molecule made up of subunits of fatty acids; found in the fats, oils, and waxes used for structure and to store energy.
one of many types of molecules made up of the chains of amino acids subunits; control the chemical activity of a cell and support growth and repair.
a type of molecule, made up of subunits of nuleotides, that is part of the genetic material of a cell and is needed to make proteins; example: DNA and RNA.
energy that is stored in the chemical compostition of matter; the amount in a substance depends on the types and arrangement of its atoms.
a sugar molecule that is a major energy source for most cells, produced by th process of photosynthesis
the process by which green plants and other producers use simple compounds and energy from light to make sugar, an enersy-rich compound
a light-absorbing chemical,a pigment, that traps the enrgy in sunlight and converts it to chemical energy. Found in chloroplasts of plants cells and the cells of other photosynthetic organisms
a process in which cells use oxygen to release energy stored in sugars
a chemical process by which cells release energy from sugar when no oxygen is present
the tendency of a substance to move from an area of higher concentration to an area of lower concentration
the movement of materials through a membrane without any input of energy
the movement of water through a membrane from an area of higher concentration to an area of lower concentration
the process of using energy to move materials through a membrane