Chapter 3 Flashcards
(29 cards)
The reactive _______ contributes to the ability of aldehydes and ketones to be involved in energy reactions.
C=O (carbonyl)
The “R” groups of amino acids have certain properties and allow for amino acids to be organized into all of the following groups except
positively charged and hydrophobic.
Carbohydrates
are a base from which other molecules can be made.
Optical isomers
are mirror images of each other in structure.
What is not a typical functions of protein?
information storage.
Fats and proteins share _______ in establishing their three-dimensional structure.
van der Waals forces
The three-dimensional structure of a protein(s)
is determined by the sequence of amino acids in the polypeptide chain.
wo important polysaccharides made up of glucose monomers are _______ and _______.
cellulose; starch
Proteins, carbohydrates, and nucleic acids are large molecules made up of monomers linked together by
covalent bonds
What is not a chemically modified carbohydrates?
cellulose
Triglycerides are composed of
glycerol and fatty acids.
A molecule with the formula C6H12O6 can be classified as
a carbohydrate.
Molecules with the same chemical formula but different arrangement of atoms are
isomers.
Monomers are joined together by _______ and broken down by _______
condensation; hydrolysis
A molecule that has an N—C—C repeat in its structure is classified as a
protein
A hydrolysis reaction requires
water
Glucose
is broken down for energy.
Monosaccharides are joined together by
glycosidic linkages.
A peptide linkage forms between
an amino group and a carboxyl group.
What is not a simple sugar?
sucrose
Cells break down stored energy into the usable monosaccharide glucose using
hydrolysis.
An amino acid is considered both an acid and a base because it has an amino and a carboxyl functional group, which are ionized by the addition or loss of
a hydrogen ion
Cholesterol
is involved in membrane integrity.
Phospholipids are
amphipathic with hydrophilic and hydrophobic properties
