dynamic study modules ch 5
what bonds link nucleotides together? what links fatty acids together?
-phophodiester linkages -ester linkages
A shortage of phosphorus in the soil would make it especially difficult for a plant to manufacture __________.
DNA
Sugars are molecules that have __________ C:H:O and are called __________.
a 1:2:1 ratio of; carbohydrates
The peptide bond is __________.
a covalent bond joining amino acids together to form a polypeptide
Sickle-cell anemia is a disease that is caused by __________ in the __________ of the protein.
a single amino acid change; primary structure
Protein molecules are polymers (chains) of __________.
amino acid molecules
When comparing saturated and naturally occurring unsaturated fats, the unsaturated fats have __________ and are __________ at room temperature.
cis double bonds; liquids
The type of bond that forms to join monomers (such as sugars and amino acids) into polymers (such as starch and proteins) is a(n) __________ bond.
covalent
Carbohydrates are used in our bodies mainly for __________.
energy storage and release
A polysaccharide that is used for storing energy in human muscle and liver cells is __________.
glycogen
The subunits (monomers) in cellulose are linked together by __________.
glycosidic linkages
The secondary structure of a peptide backbone is stabilized by __________ forming either a(n) __________ or a(n) __________.
hydrogen bonds; α helix; β pleated sheet
The tertiary structure of a protein includes all of the following interactions except _________ bonds.
peptide
what type of bonds link amino acids
peptide bonds
The lipids that form the main structural component of cell membranes are __________.
phospholipids
The sequence of amino acids in a protein is called the __________ structure of the protein.
primary
One characteristic shared by sucrose, lactose, and maltose is that __________.
they are all disaccharides
In a dehydration synthesis reaction, __________ is always formed as a by-product of the reaction.
water
