Answer Options:
Uronic acids
Sulfate groups
N-Glycosidic linkages
Answer: Both A and B are correct
Question: The following molecule is an example of which class of compounds? CH3CH2CH2COOCH2CH3
Answer Options:
Hydrocarbon
Acid
Ester
Ether
Aldehyde
Answer: Ester
Question: What is the best possible solution to the solar neutrino problem?
Answer Options:
The Sun is generating energy faster than by nuclear fusion.
The Sun is generating much less energy than we think it is.
We do not know how to detect electron neutrinos.
Past and future neutrino emission spectra.
Answer: The electron neutrinos created in the Sun change into another type of neutrino that we do not detect.
Question: What makes the Kepler mission so important to exoplanet research?
Answer Options:
It was the first ground-based telescope capable of using the Doppler effect technique to detect exoplanets.
It is a space-based observatory capable of detecting thousands of exoplanets, many with masses much smaller than Earth.
It is the first ground-based observatory that will not exhibit a selection effect.
It is to be the first space-borne telescope to use the transit method to detect exoplanets.
Answer: It is a space-based observatory capable of detecting thousands of exoplanets, many with masses much smaller than Earth.
Question: Lactose intolerance arises from:
Answer Options:
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: The three-dimensional structure of a protein is determined primarily by:
Answer Options:
electrostatic guidance from nucleic acid structure
how many amino acids are in the protein
hydrophobic interactions with lipids that provide a folding framework
modification during interaction with ribosomes
the sequence of amino acids in the protein
Answer: the sequence of amino acids in the protein
Question: Biological machines are derived from which class of compounds?
Answer Options:
Fats
Proteins
Carbohydrates
Ribosomes
B and C
Answer: Proteins
Question: Determine the net charge of the following tetrapeptide at pH 4 that contains the amino acids represented by the single letters “KLTW”, such that K is at the amino-terminal end of the peptide and W is at the carboxyl-terminal end.
Answer Options:
+2
+1
0
-1
-2
Answer: +1
Question: Most biomolecules can be considered to be derivatives of:
Answer Options:
Amino acids.
Carbohydrates.
Fats
Hydrocarbons
Alcohols
Answer: Fats
Question: What should you do if a chemical gets in your eye?
Answer: Go to the eye wash station and flush your eyes until medical assistance arrives.
Question: Rank Standards from Plate from Least to Most Polar:
Answer: Least Polar: Caffeine
2nd most polar: Acetaminophen
Most Polar: Aspirin
Question: The three most common homoglycans found in nature are cellulose, starch and ________.
Answer Options:
Amylose
Lactose
Fructose
Glycogen
Sucrose
Answer: Glycogen
Question: What is a common role of a coenzyme in a reaction as stated in class?
Answer Options:
To lower the activation energy of a reaction further
The donation of atoms to a reaction
To alter the enzymes shape
To assist the substrate by binding to the enzyme, enabling substrate to achieve site engagement
Answer: To lower the activation energy of a reaction further