Semester Test Vocab Period 1

Protein that helps to speed up chemical reactions

Role or position an organism has in its environment

Concentration of solute is higher outside the cell

Negatively charged particles in shells around the nucleus

Concentration of solute is equal inside and outside the cell

Variable that you measure; changes due to independent variable

A cell that does not have any membrane-bound organelles

Bond that forms when two atoms share electrons

Monomers of proteins

Place where two neurons meet

When both species in a symbiotic relationship benefit

Membrane allows some substances through but not others

An organism that collects energy from the sun is a(n)

Something that will cause a response is called a(n)

An educated guess or prediction based on observations

Pigment that absorbs light in plants

Multiple populations living and interacting in the same area

The process by which organisms keep their internal conditions relatively stable

The study of organisms and how they interact with each other and the environment

The diffusion of water

Life's basic unit of structure/function

A reaction that builds large molecules from smaller ones and requires an input of energy

Variable that you select for an experiment (experimenter changes it)

When a new community forms in an area that already has topsoil

Something that is the same across all experiment groups so that only one variable is measured

Breaks down glucose into pyruvate

Movement of a substance from high concentration to low concentration

The sum of all chemical reactions in a cell