CHEM 210 - Module 3 [ACTUAL EXAM] LATEST VERSION
[QUESTIONS AND ANSWERS] WITH PRACTICE EXAM
DETAILED AND VERIFIED FOR GUARANTEED PASS- LATEST
UPDATE 2025 GRADED A
protein functions - CORRECT ANSWER - transport
- hormones
- catalysis
- structure
- protection
transport - CORRECT ANSWER proteins help move molecules around cell &
organism (eg. hemoglobin)
hemoglobin - CORRECT ANSWER blood-based protein that carries O2 from lungs to
tissue
- quaternary tetramer
hormones - CORRECT ANSWER communicate messages b/w cells (eg. relaxin)
relaxin - CORRECT ANSWER protein hormone that helps women during childbirth by
relaxing pelvic ligaments to make delivery easier
catalysis - CORRECT ANSWER enzymes speed up chemical reactions (eg.
protease)
protease - CORRECT ANSWER enzyme that breaks down proteins in cells to help
organisms recycle unneeded proteins
- also added to laundry detergent to degrade stains w/ protein (blood, food)
structure - CORRECT ANSWER proteins give strength to cells, organelles, tissues
(eg. collagen)
collagen - CORRECT ANSWER structural protein found in cartilage, skin, and
tendons
protection - CORRECT ANSWER human body protects itself from outside proteins &
toxins by making proteins called antibodies
antibodies - CORRECT ANSWER fight foreign invaders
amino acids - CORRECT ANSWER 20 standard amino acids exist, monomers used
as building blocks
, - contain amine & carboxylic acid group connected to alpha carbon
- same HN3, CH, COO- groups, different R side chain
- at physiological pH 7.4, ~all carboxylic acid groups lose the COOH hydrogen and have
an extra proton (NH3+)
R side chain - CORRECT ANSWER 20 side chains; differ in composition, size, &
charge
- grouped by charge, size, & polarity
nonpolar aliphatics - CORRECT ANSWER straight chain amino acids
- small so they can interact w/ other groups
- often found in protein interior
- glycine
- alanine
- valine
- proline
- leucine
- isoleucine
- methionine
glycine - CORRECT ANSWER gly, G
alanine - CORRECT ANSWER ala, A
valine - CORRECT ANSWER val, V
proline - CORRECT ANSWER pro, P
- the only amino acid where side chain bonds to nitrogen backbone
- not flexible structure
leucine - CORRECT ANSWER leu, L
isoleucine - CORRECT ANSWER ile, I
methionine - CORRECT ANSWER met, M
nonpolar aromatics - CORRECT ANSWER side chains containing a ring of carbons,
not as small as aliphatic but more rigid
- phenylalanine
- tryptophan
- tyrosine
[QUESTIONS AND ANSWERS] WITH PRACTICE EXAM
DETAILED AND VERIFIED FOR GUARANTEED PASS- LATEST
UPDATE 2025 GRADED A
protein functions - CORRECT ANSWER - transport
- hormones
- catalysis
- structure
- protection
transport - CORRECT ANSWER proteins help move molecules around cell &
organism (eg. hemoglobin)
hemoglobin - CORRECT ANSWER blood-based protein that carries O2 from lungs to
tissue
- quaternary tetramer
hormones - CORRECT ANSWER communicate messages b/w cells (eg. relaxin)
relaxin - CORRECT ANSWER protein hormone that helps women during childbirth by
relaxing pelvic ligaments to make delivery easier
catalysis - CORRECT ANSWER enzymes speed up chemical reactions (eg.
protease)
protease - CORRECT ANSWER enzyme that breaks down proteins in cells to help
organisms recycle unneeded proteins
- also added to laundry detergent to degrade stains w/ protein (blood, food)
structure - CORRECT ANSWER proteins give strength to cells, organelles, tissues
(eg. collagen)
collagen - CORRECT ANSWER structural protein found in cartilage, skin, and
tendons
protection - CORRECT ANSWER human body protects itself from outside proteins &
toxins by making proteins called antibodies
antibodies - CORRECT ANSWER fight foreign invaders
amino acids - CORRECT ANSWER 20 standard amino acids exist, monomers used
as building blocks
, - contain amine & carboxylic acid group connected to alpha carbon
- same HN3, CH, COO- groups, different R side chain
- at physiological pH 7.4, ~all carboxylic acid groups lose the COOH hydrogen and have
an extra proton (NH3+)
R side chain - CORRECT ANSWER 20 side chains; differ in composition, size, &
charge
- grouped by charge, size, & polarity
nonpolar aliphatics - CORRECT ANSWER straight chain amino acids
- small so they can interact w/ other groups
- often found in protein interior
- glycine
- alanine
- valine
- proline
- leucine
- isoleucine
- methionine
glycine - CORRECT ANSWER gly, G
alanine - CORRECT ANSWER ala, A
valine - CORRECT ANSWER val, V
proline - CORRECT ANSWER pro, P
- the only amino acid where side chain bonds to nitrogen backbone
- not flexible structure
leucine - CORRECT ANSWER leu, L
isoleucine - CORRECT ANSWER ile, I
methionine - CORRECT ANSWER met, M
nonpolar aromatics - CORRECT ANSWER side chains containing a ring of carbons,
not as small as aliphatic but more rigid
- phenylalanine
- tryptophan
- tyrosine
