MARRS/VAUGHN SP' 2025 - EXAM 1
QUESTIONS AND ANSWERS 100%
PASS
A ________ bond is a covalent bond joining amino acids together to form a polypeptide
A. peptide
B. ester
C. glycosidic
D. phosphodiester - correct answer-A
Protein molecules are polymers (chains) of __________ molecules
A. DNA
B. amino acid
C. sucrose
D. purine and pyrimidine
E. fatty acid - correct answer-B
the sequence of amino acids along a polypeptide chain
A. primary structure
B. secondary structure
C. tertiary structure
D. quaternary structure - correct answer-A
which of the following lists represents the chemical components of a nucleotide?
A. a series of nitrogenous bases, a nucleic acid backbone, and a hexose sugar
B. a nitrogenous base, an amino acid, and a pentose sugar
C. a nitrogenous base, a fatty acid, and an amino acid
D. nitrogenous base, an amino acid, and a phosphate group
E. a nitrogenous base, a phosphate group, and a pentose sugar - correct answer-E
A ______ is constructed from fatty acids and glycerol - correct answer-fat
,what functional group gives a fatty acid its name? - correct answer-carboxyl
why are fatty acids hydrophobic? - correct answer-non polar hydrocarbon chains
what is joined together to make a fat? what kind of bond? - correct answer-three fatty
acids are joined to a glycerol by an ester linkage
__________ fatty acids have fewer hydrogen atoms on each double bonded carbon -
correct answer-unsaturated
the major function of fats is ________ - correct answer-energy storage
Match the human disease with the organelle or cell structure: ALD
A. peroxisome
B. Lamina A
C. lysosome
D. hemoglobin - correct answer-A
Match the human disease with the organelle or cell structure: Progeria
A. peroxisome
B. Lamina A
C. lysosome
D. hemoglobin - correct answer-B
Match the human disease with the organelle or cell structure: Tay Sachs
A. peroxisome
B. Lamina A
C. lysosome
D. hemoglobin - correct answer-C
Match the human disease with the organelle or cell structure: Sickle cell
A. peroxisome
, B. Lamina A
C. lysosome
D. hemoglobin - correct answer-D
a _________ is 2 fatty acids attached to glycerol - correct answer-phospholipid
cholesterol is a ____________ - correct answer-steroid
which molecule is a precursor for sex hormones? - correct answer-cholesterol
steroids are _________
A. proteins
B. carbohydrates
C. lipids - correct answer-C
four fused rings - correct answer-steroid
atherosclerosis
A. high cholesterol
B. low cholesterol - correct answer-A
A bond between amino acids - correct answer-peptide
a polymer of amino acids - correct answer-polypeptide
a _______ is made up of polypeptides - correct answer-protein
a protein is made up of ____________ - correct answer-polypeptides
which functional groups make up an amino acid? - correct answer-amino and carboxyl
parts of an amino acid - correct answer-amino group