General Unit
a homogeneous mixture of two or more substances that are uniformly mixed
solution
A state of balance among all the body systems needed for the body to survive and function correctly.
Homeostasis
two solutions have equal concentrations of solutes
isotonic
The smallest unit that can live on its own and that makes up all living organisms and the tissues of the body.
cell
The smallest unit of matter that retains all of the chemical properties of an element.
atom
the tendency of molecules of the same type to stick together
cohesion
chemical compounds that show, in water solution, a sharp taste, a corrosive action on metals, and the ability to turn certain blue vegetable dyes red.
amino acid
allowing only some materials to pass through, while blocking others
semipermeable
the biological process by which a new member (or members) of a species is created from a parent (or parents)
reproduction
a tiny, negatively charged particle that orbits the nucleus of an atom.
electron
A tentative explanation that can be tested to explain an observed phenomenon. It's a core part of scientific inquiry.
Hypothesis
a substance made up of two or more different elements that are chemically joined together
compound
a mixture where solid particles are dispersed in a liquid without dissolving
suspension
The process by which living things change over time
evolution
A group of two or more atoms that are held together by chemical bonds, forming the smallest unit of a substance with its unique properties
molecule
a large, complex molecule composed of long chains of amino acids, playing crucial roles in the structure, function, and regulation of an organism's tissues and organs
protein
The net movement of molecules from an area of greater concentration to an area of lesser concentration.
difusion
The process by which water or other solvents move through a semipermeable membrane from a region of high concentration to a region of low concentration.
osmosis
Process of attachment of a substance to the surface of another substance
adhesion
A pure substance that occurs naturally in, around and on the earth, and cannot be further broken down chemically.
element
fatty compounds that perform a variety of functions in your body
lipid
organic compounds that consist of carbon, hydrogen, and oxygen atoms
carbohydrate
_________ means having a lower concentration of solute, while ________ means having a higher concentration of solute.
hypotonic / hypertonic
nucleic acid
a small molecule that joins with other _____ acids to form proteins.
amino acids