Life Science Chapter 3 Vocabulary Words

A type pf protein that regulates nearly all chemical reactions in a cell

Combination of substances in which individual substances do not change or combine chemically

Movement of substances through a cell membrane without the use of energy

Compounds that always contain hydrogen and carbon

Chemical reactions occur that break down food molecules into simpler substances ......

Energy-requiring - proteins bind with particles and move them through a cell membrane

Passive transport - water diffuses through a cell membrane

Process-plants use light energy to produce a sugar from carbon dioxide and water to give off O

Compound - made from elements other than carbon and whose atoms can be arranged in 1 structure

Oxygen lacking cells and 1 cell organisms release small amounts of energy from glucose

Occurs when molecules of one substance are spread evenly throughout another substance

The total of all chemical reactions in an organism

Process by which a cell takes in a substance by surrounding it with a cell membrane

Passive transport-molecules move from areas where there are more to areas where there are less

Vesicles release their contents outside a cell