QUESTIONS AND CORRECT DETAILED ANSWERS (VERIFIED
ANSWERS) |ALREADY GRADED A+ (2025) (2 VERSIONS)
What is the basic structure of an amino acid? What do they
look like? - CORRECT ANSWER amino group (NH2 or
NH3), carboxyl group (COO or COOH), alpha carbon (C), and
variable group
what is a phospholipid? - CORRECT ANSWER similiar to
triglycerides; has two fatty acids and one phosphate. love
and hates H20
what is a micelle? - CORRECT ANSWER spherical single
layer of phospholipids; transport fatty acids, vitamins, and
cholesterol
what is an adipocytes? - CORRECT ANSWER fat cells
what is lipase? - CORRECT ANSWER enzyme that
catalyzes triglyceride breakdown
what is lipolysis? - CORRECT ANSWER breakdown of
lipids
what is beta oxidation? - CORRECT ANSWER fatty acid
breakdown in mitochondria to 1 acetyle COA, 1 NADH, and 1
FADH2
,what are ketone bodies? - CORRECT ANSWER
alternative energy form; comes from fatty acid breakdown
what is ketoacidosis? - CORRECT ANSWER
accumulation of too many ketones within the body
what is MCADD? - CORRECT ANSWER defect in enzyme
used for beta oxidation; need to avoid fasting, eat slow
release carbs
what is fatty acid synthesis? - CORRECT ANSWER
linking of acetylCOA repeatedly to make new fatty acids in
the cytoplasm
what is oxaloacetate? - CORRECT ANSWER
Intermediate that couples with acetyl Co-A to form citrate
what is citrate? - CORRECT ANSWER Bridge between
carb and fatty acid metabolism; important for fatty acid
synthesis
what is amphipathic? - CORRECT ANSWER molecules
that are hydrophilic and hydrophobic
what is the phospholipid bilayer? - CORRECT ANSWER
polar heads interact with watery environment; nonpolar tails
remain inside to avoid water. controls in/out of cell.
,what is the plasma membrane? - CORRECT ANSWER
boundary of every cell, acts as selective barrier, regulates
chemical composition
what is a glycolipid? - CORRECT ANSWER lipid + sugar;
bases for A, B, and O blood types
what is a glycoprotein? - CORRECT ANSWER sugar +
protein; basis for A, B, and O blood types
what is an essential fatty acid? - CORRECT ANSWER
omega 3 and omega 6 fatty acids, must be eat thru diet
what is an eicosanoid? - CORRECT ANSWER class of
lipids derived from essential fatty acids; act as local
hormones generated as needed; control
fever/pain/BP/reproduction/blood coagulation
what is an arachidonic acid? - CORRECT ANSWER
precursor to ecosanoids
what is chylomicron? - CORRECT ANSWER Lipid
transport globule composed of fats mixed with cholesterol
and coated with proteins
what is a cis fat? - CORRECT ANSWER have both
hydrogen atoms on the same side of the double bond; have a
kind or bend in the carbon chain, make it difficult for the
fatty acids to pack together
, what is a trans fat? - CORRECT ANSWER hydrogen
atoms are on opposite sides of the double bond; trans fatty
acids can pack tightly like saturated fats = higher melting
point
example of cis fat? - CORRECT ANSWER unsaturated
natural oils
example of trans fat? - CORRECT ANSWER margarine;
raises blood cholesterol levels and increases risk of heart
disease
what makes LDL? - CORRECT ANSWER high cholesterol
what is cholesterol needed for? - CORRECT ANSWER
synthesize vitamin D in the skin, cholic acid, steroid
hormones
what don't RBCs have? - CORRECT ANSWER
mitochondria
what supplies glucose to RBCs? - CORRECT ANSWER
cori cycle
why does a runner eat high carbs a day before a race? day
of? - CORRECT ANSWER day before - gluconeogensis
building up for race day; day of - glycolysis because its
burned right away
How do you identify the 3 different types of side chains: non-
polar/hydrophobic, polar, and charged? - CORRECT