Exam 2
暂无描述。系统推荐的高质量记忆内容，适合每天坚持背诵学习。
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Animals have what kind of fat?
saturated
Plants have what kind of fat?
unsaturated exception; fish oils tend to be unsat
palm oil has the
highest saturated fat content
cocoa butter is an example of
a mixture of saturated and unsaturated fats - solid at room temp and liquid at body temp
atherosclerosis
lipid containing deposits = plaques that build up in blood vessels
C=C /
trans fat (greatest risk of atherosclerosis)
add H to C=C (unsat fats) and it converts to (this is called?)
unsaturated fats to saturated fats this process is called hydrogenation
polyunsaturated fats
fatty acids w C=C3 carbons away from end omega 3 fatty acids fish oils, walnuts protects against cancer and improves cardiovascular health
steroids characteristic structure
of 4 fused rings
cholesterol is a
steroid that is a precursor for steroid synthesis synthesized in liver, obtained in diet, common in animal cell membranes for fluidity a chemical that is transformed into another compound, as in the course of a chemical reaction, and therefore precedes that compound in the synthetic pathway: Cholesterol is a precursor of testosterone
estradiol
type of estrogen that is a steroid
testosterone
male-sex hormone that is a steroid
proteins are polymers of
of amino acids
characteristics of proteins
great diversity in structure and function provides support movement provides amino acids for growth helps transport substances
amino acid monomers are covalently joined in _____ that form a ___
dehydration reactions that form a peptide bond
carboxyl group donates
donates -OH
amino group donates
donates -H
oligopeptide
short chain <20
polypeptide (size)
long chains >100
one protein structure
one polypeptide in its properly folded form
the carboxyl and amino group are bonded by a
peptide bond
the amino, which ends in amine (H) is also called the
n-terminus
the carboxyl group is also called the
c-terminus +129
hydrophobic side chains
mostly C and H, exclude water interior of protein and domains crossing cell membranes