Nutrition 1020 Exam 3 questions with verified answers
Proteins Correct Answer ✔✔-Macronutrients, contains 4 kcals/gram,
provides energy, Approximately 22,000 different proteins carry out
functions in the body.
Structure of Protein Correct Answer ✔✔-Composed of carbon,
hydrogen, oxygen, and nitrogen; Amino acids are the building blocks of
protein.
Amino acids Correct Answer ✔✔-Glycine, serine, tryptophan
Essential Amino Acids Correct Answer ✔✔-9, must be obtained in the
diet, cannot be made in the body
How are proteins made? Correct Answer ✔✔-Made in the cells.
What determines a proteins function? Correct Answer ✔✔-The specific
function of each type of protein is determined by the specific three
dimensional shape, which is determined by the order of amino acids in
the chain. Two step process: transcription and translation.
Protein digestion and absorption Correct Answer ✔✔-Absorbed by
mucosal cells with the assistance of transport proteins
Where does transcription occur? Correct Answer ✔✔-Occurs in the cell
nucleus
, Where does translation occur? Correct Answer ✔✔-In the cytoplasm
What role does DNA. mRNA, tRNA, and ribosomes play in protein
synthesis? Correct Answer ✔✔-Ribosomes read the mRNA sequence
and translates it into the amino acid sequence to assemble the protein.
tRNA brings specific amino acids to the ribosomes. The ribosome
directs a tRNA matching the mRNA code to the correct position and the
amino acid is added to the chain.
Why is providing energy considered a secondary function for protein?
Correct Answer ✔✔-When carbohydrates and lipids are in short supply,
protein from both the body and food. is broken down into amino acids
and converted to glucose: Gluconegensis.
What does the term "amino acid wasting" refer to? Correct Answer ✔✔-
When proteins are not being used for antibodies, cell growth, hormones,
or enzymes. It is the body's least favorite energy source.
What does the body do if excess amino acids are present in the pool of
amino acids? Correct Answer ✔✔-They are converted to energy or
stored as fat.
How do researchers determine nitrogen balance? Correct Answer ✔✔-
Nitrogen balance is measured when you first measure the protein intake,
and then the nitrogen output from that is measure in the urine and feces.
Proteins Correct Answer ✔✔-Macronutrients, contains 4 kcals/gram,
provides energy, Approximately 22,000 different proteins carry out
functions in the body.
Structure of Protein Correct Answer ✔✔-Composed of carbon,
hydrogen, oxygen, and nitrogen; Amino acids are the building blocks of
protein.
Amino acids Correct Answer ✔✔-Glycine, serine, tryptophan
Essential Amino Acids Correct Answer ✔✔-9, must be obtained in the
diet, cannot be made in the body
How are proteins made? Correct Answer ✔✔-Made in the cells.
What determines a proteins function? Correct Answer ✔✔-The specific
function of each type of protein is determined by the specific three
dimensional shape, which is determined by the order of amino acids in
the chain. Two step process: transcription and translation.
Protein digestion and absorption Correct Answer ✔✔-Absorbed by
mucosal cells with the assistance of transport proteins
Where does transcription occur? Correct Answer ✔✔-Occurs in the cell
nucleus
, Where does translation occur? Correct Answer ✔✔-In the cytoplasm
What role does DNA. mRNA, tRNA, and ribosomes play in protein
synthesis? Correct Answer ✔✔-Ribosomes read the mRNA sequence
and translates it into the amino acid sequence to assemble the protein.
tRNA brings specific amino acids to the ribosomes. The ribosome
directs a tRNA matching the mRNA code to the correct position and the
amino acid is added to the chain.
Why is providing energy considered a secondary function for protein?
Correct Answer ✔✔-When carbohydrates and lipids are in short supply,
protein from both the body and food. is broken down into amino acids
and converted to glucose: Gluconegensis.
What does the term "amino acid wasting" refer to? Correct Answer ✔✔-
When proteins are not being used for antibodies, cell growth, hormones,
or enzymes. It is the body's least favorite energy source.
What does the body do if excess amino acids are present in the pool of
amino acids? Correct Answer ✔✔-They are converted to energy or
stored as fat.
How do researchers determine nitrogen balance? Correct Answer ✔✔-
Nitrogen balance is measured when you first measure the protein intake,
and then the nitrogen output from that is measure in the urine and feces.
