Biology Vocab Unit 1-3

Hydrogen bond

attraction between a slightly positive hydrogen

cohesion

attraction between molecules of the same substance

adhesion

The attraction among molecules of different substances

solution

mixture of substances that is the same throughout

solvent

The substance that is present in greater amounts

Solute

substance that dissolves in a solvent

acid

compound that releases a proton

Base

water (A chemical base that releases hydrogen ions in water that helps maintain proper peach levels essential biological processes)

amino acid

public blocks of proteins

carbohydrates

sugars and starches that provide energy

PH

A scale measures acidic or basic a substance is (0-14)

fatty acids

components of fats used for energy and cell structure

lipids

fats and oils used for energy storage and installation

Micro molecule/organic molecules

large molecules essential for like proteins and DNA

Monomer

A small unit that joins with others to form polymers

proteins

molecules that do work in the body made of amino acids

Denature

to change the structure of a protein,

equilibrium

A state of balance were opposing forces rates are equal

enzyme

A biological catalyst usually a protein that speeds up chemical reaction

reaction rate

the sped up at which reactants are converted into products in chemical reaction?

endothermic

A chemical reaction that absorbs energy from its surroundings

substrate

The specific reactant molecule that an enzyme acts upon

Active site

The region on an enzyme where the substrate binds and the reaction occurs

Lock and key model

A model that describes how an enzyme active site(Lock ) has the precise shape to fit a specific substrate( Key)