Question: What type of metal is present in the salts that make up the detection reagent in this experiment?
Answer Choices:
Zinc
Magnesium
Copper
Iron
Answer: Copper
Question: Lactose intolerance arises from:
Answer Choices:
Bacteria in the intestine that produce toxic metabolites.
The inability of intestinal enzymes to cleave the lactose.
A sensitivity to galactose.
A sensitivity to glucose.
An allergic reaction to glucose.
Answer: The inability of intestinal enzymes to cleave the lactose.
Question: Foods yield different amounts of energy based on their composition. How many kcal are obtained from one gram of alcohol?
Answer Choices:
0
4
7
9
Answer: 7
Question: Which of the following carbohydrates is a nonreducing sugar?
Answer Choices:
Glucose
Fructose
Lactose
Sucrose
Ribose
Answer: Sucrose
Question: Biological machines are derived from which class of compounds?
Answer Choices:
Fats
Proteins
Carbohydrates
Ribosomes
B and C
Answer: Proteins
Question: This lab exercise will determine the concentrations of individual amino acids in the protein solutions.
Answer Choices:
True
False
Answer: False
Question: _____ contains the cell’s genetic material and controls activities in the cell.
Answer Choices:
Cytoplasm
Mitochondria
Plasma membrane
Nucleus
Answer: Nucleus
Question: Which type of the six enzyme reactions are depicted in the image below.
Answer Choices:
Transferase
Hydrolase
Isomerase
Ligase
Answer: Transferase
Question: Glycoproteins lack which of the following groups typically found in proteoglycans?
Answer Choices:
Uronic acids
Sulfate groups
N-Glycosidic linkages
Answer: Both A and B are correct
Question: Choose the amino acid that is the least ideal substrate used to synthesize a stim-lurating neurotransmitter.
Answer Choices:
Glutamic acid
Glycine
Tyrosine
Tryptophan
Cysteine
Answer: Glycine
Question: Glycogenetics return from the constant triage of carbohydrates to proteins & ________.
Answer Choices:
Amino acids
Lipids
Nucleotides
Answer: Both A and B are correct
Question: The presence of which of the following molecules indicates that the cell has sufficient energy reserves?
Answer Choices:
ATP
Citrate
ADP
Fructose-2,6-bisphosphate
Answer: ATP
Question: Denaturation will increase the activity of an enzyme.
Answer Choices:
True
False
Answer: False
Question: ______ contains the cell’s genetic material and controls activities in the cell.
Answer Choices:
Cytoplasm
Mitochondria
Plasma membrane
Nucleus
Answer: Nucleus
Question: The ability of the microscope to distinguish as separate and distinct, objects that lie in close proximity is termed:
Answer Choices:
Linear Extension
Magnification
Resolution
Close Proximity
Answer: Resolution
Question: The binding of insulin to receptors on the surface of muscle cells stimulates which of the following processes?
Answer Choices:
Glycogenolysis
Glycogenesis
Release of ATP
Formation of cyclic AMP
Release of glycogen
Answer: Glycogenesis
Question: Cellulose is indigestible to most animals because:
Answer Choices:
Cellulose is not soluble in water.
Animals lack the enzymes required to hydrolyze the β links of the cellulose.
Cellulose has too few axial hydroxyls and therefore cannot be digested.
Both A and B are correct.
Answer: Both A and B are correct
Question: Reaction of an amino acid with Cl of a sylic acid produces which of the following linkages?
Answer Choices:
Ester
Amide
Glycosidic
Enzyme
Schiff base
Answer: Amide
Question: Which of the following amino acids contain a hydrophobic side chain?
Answer Choices:
Leucine
Arginine
Glutamic acid
Aspartic acid
Answer: Leucine
Question: Which of the following is not an example of a macromolecule?
Answer Choices:
A Chromoprotein
A Protein
A Polysaccharide
An Enzyme
An Amino acid
Answer: An Amino acid
Question: What does the first Korotkoff sound represent?
Answer Choices:
Systolic Blood Pressure
Diastolic Pressure
Rate-Pressure Product
Pulse Pressure
Answer: Systolic Blood Pressure