Atoms/ Molecules/ Chem
Simplest form of matter
Atom
What type of bond is between oxygen and hydrogen in a water molecule?
Polar Covalent Bond
This is a measure of how acidic or basic a substance is. The range is 0-14
pH Scale
What biological unit uses diffusion to receive nutrients and eliminate waste?
Cells
A repeating unit in a polymer like a link on a chain
Monomer
A covalent bond involves sharing__________________
Electrons
This type of bonding is used to describe the attraction between an oxygen atom of one water molecule to the hydrogen atom in another water molecule
Hydrogen Bonding
A substance that forms H+ in water
Acid
Diffusion is the net movement of particles to go from areas of high concentration to ____________________
Low Concentration
The monomer for a protein which contains carbon, hydrogen, oxygen, and nitrogen
Amino Acids
Atoms come together to form ?
Molecules, compounds
A substance that dissolves a solute
Solvent
A pH is of 7 is considered to be
The idea that suspended particles are moved around because of the random movement of liquids (solids and gasses too)
Brownian Motion
Monomer contains a sugar, nitrogen-containing base, and a phosphate
Nucleic Acid
Substances can undergo ____________ to change into another substance
A chemical reaction
Water holds together by through hydrogen bonds to keep its shape
Surface Tension
Any substance that gives off OH- in water
Base
Increase in temperature increases or decreases the rate of diffusion?
Increases
This biomolecule is responsible for insulation and energy storage
Lipids
A(n)______________ is a substance that can not be broken down into simpiler chemical substances
elements
A ______________ is a mixture in which one or more substances are disolved or evenly distributed in a solvent
Solution
pH of 2 is acidic, basic, or neutral
Acidic
When does diffusion stop?
When the concentration is equal throughout and there isn't a net change in concentration
This polysaccharide gives plants structural support
Cellulose