The action of disrupting the three-dimensional shape of a protein is termed
Dehydration
denaturation
deamination
hydrolysis
What is the role of hydrogen bonds in the structure if DNA?
to code for proteins
to synthesize proteins
to separate the strands
to connect the base pairs
Free fatty acids are able to travel from adipose tissue to muscle or liver
As independent water soluble compounds in the blood
By using receptors on red blood cells
Bound to serum proteins
By using enzymes that modify them
The site of amino acid catabolism is the:
Stomach
Small intestine
Large intestine
Liver
Which of the following is true of urea?
more toxic to human cells than ammonia
the primary nitrogenous waste products of humans.
insoluble in water
the primary nitrogenous waste product of most aquatic invertebrates
Transamination is the process where
carboxyl group is transferred from amino acid
α-amino group is removed from the amino acid
polymerization of amino acid takes place
none of the above
Transamination is the transfer of an amino
acid to a carboxylic acid plus ammonia
group from an amino acid to a keto acid
acid to a keto acid plus ammonia
group from an amino acid to a carboxylic acid
During which of the following process a new copy of a DNA molecule is precisely synthesized?
Which of the following enzyme is used for synthesis of RNA under the direction of DNA?
RNA polymerase
DNA ligase
DNA polymerase
RNA ligase
Which of the following is a product of transcription?
mRNA
tRNA
rRNA
all of these
Where in the cell is the DNA transcribed into mRNA?
Cytoplasm
Nucleus
Golgi
Cell cytoskeleton
The site of protein synthesis is
Ribosome
Nucleus
Endoplasmic reticulum
Chromosome
Which of the following is not necessary for protein synthesis to occur, once transcription is completed?
tRNA
Ribosomes
mRNA
D. DNA
What is the role of small nuclear RNAs in protein synthesis?
It translates genetic code to a specific amino acid
It modifies mRNA molecules prior to protein synthesis
It provides a genetic blueprint for the protein
It catalyzes the process
Which is required for protein synthesis?
