quizmass day 1- BioChem quiz/ intro to bio, sigfigs

what is a substance that speeds up chemical reaction?

enzyme

what is a macro molecule made of amino acids

Proteins

The basic unit of matter is called the

atom

A – is a type of compound made entirely of covalent bonds

molecule

macromolecule in the ratio of 1 :2: 1 (CHO) and is the bodies primary source of energy is a

carbohydrate

a - bond holds water molecules together

hydrogen

A macromolecule that stores genetic information is referred to as a – acid

Nucleic

A physical grouping a different substances is called a

Mixture

– – Creates macro molecules by removing water

Dehydration synthesis

– Describes the waters ability to stick to the surface of a glass beaker

Adhesion

COOH is one of the functional groups and is called

carboxyl

individual pieces that make up polymers are called

Monomer

nitrogenous bases are joined to ribose and a phosphate to produce a

Nucleotide

protons and neurons are found in the - of an atom

Nucleus

Pure substance having elements and fixed ratios is called a

compound

when salt dissolves in water, the salt is classified as the - in the water as the -

solute, solvent

A - molecule is formed when one side has a slight positive charge and other a slight negative charge

Polar

A chemical bond in which electrons are shared, describes a - bond

Covalent

when solved dissolves in water, the even distribution of ions creates a mixture called a

Solution

-NH2 represents a functional group called an – group

Amino

The carbohydrate is made of individual pieces called

Monosaccharide

A compound made of many monomer is called a

Polymer

A chain of amino acids builds up a

Polypeptide

water ability to stick to itself, describes the property of

Cohesion

A - is formed from the union of glycerol and 3 fatty acids

lipid

two examples of nucleotides are

DNA, RNA

The bond between amino acids is a – bond

Peptide

The process that links polymers together is called

polymerization

what is it

lipid

what is it

carbohydrate

what is it?

nucleic acid

what is it

protein

all non-zero digits are

significant

zeros between figures are themselves

Significant

zeros in front of numbers(leading zeros) are

Insignificant

zeros at the end, the numbers(lagging zero) are

Significant if there's a decimal

how many sig figs does 0.00032 have

2

how many sig figs does 0.05600 have

4