13 Jun Mehran has heard from some of his teammates that drinking a high-protein
Question
Question 1
Mehran has heard from some of his teammates that drinking a high-protein supplement after football training will improve his muscle mass. He decides to test this hypothesis by comparing the muscle mass of teammates who drink the high-protein drink with a control group who drink only water. Which of the following would be the BEST control for his experiment?
Randomly selected teammates who are given only small amounts of a protein drink
Randomly selected teammates in training who are given a placebo instead of a protein drink
Volunteers from the general campus population who are not given any protein drink
Volunteers from the football team who agree to take a placebo instead of a protein drink
8 points
Question 2
Which of the following situations has the greatest potential for observer bias in an experimental process?
Dr. Jones is evaluating cancer patients for their responses to a new therapeutic drug. She knows which patients are receiving the placebo and which are receiving the drug.
Mr. Bromley is conducting a survey of weight loss for his professor. He asks each student in the study the same questions.
Ms. Bradley is an outside consultant who is conducting a health and wellness survey for a pharmaceutical company. She does not know the name of the company, nor does she know the name of the drug being tested during the survey.
Dr. Postgate is analyzing biopsy samples from rats that have been given either a placebo or an experimental drug believed to reduce inflammation. Each sample is identified by a code number so that Dr. Postgate cannot tell which treatment the rats received.
8 points
Question 3
What is the purpose of double-blind experiments?
Ensure that the hypothesis is scientifically testable
See if the experimental group will respond differently than the control group
Help the subjects in an experiment understand the treatment they are receiving
Minimize the effects of human bias on the results
8 points
Question 4
An atom will be least likely to form chemical bonds with other atoms when:
the number of protons equals the number of electrons.
the number of protons equals the number of neutrons.
there is only one electron in the valence shell.
the valence shell is full of electrons.
8 points
Question 5
Sally is trying to eat healthier and watch her intake of saturated fats. Which of the following oils would be the best choice for Sally to use when she cooks?
Lard
Olive oil
Bacon grease
Butter
8 points
Question 6
Match the following term to its definition.
-A.B.C.D.E.F.G.H.I.J.K.L.M.N.O.P.
Primary Source
-A.B.C.D.E.F.G.H.I.J.K.L.M.N.O.P.
Protons
-A.B.C.D.E.F.G.H.I.J.K.L.M.N.O.P.
Amino acids
-A.B.C.D.E.F.G.H.I.J.K.L.M.N.O.P.
Carbohydrates
-A.B.C.D.E.F.G.H.I.J.K.L.M.N.O.P.
Nucleic acids
-A.B.C.D.E.F.G.H.I.J.K.L.M.N.O.P.
Prokaryotic
-A.B.C.D.E.F.G.H.I.J.K.L.M.N.O.P.
Plasma membrane
-A.B.C.D.E.F.G.H.I.J.K.L.M.N.O.P.
Mitochondria
-A.B.C.D.E.F.G.H.I.J.K.L.M.N.O.P.
Ribosomes
-A.B.C.D.E.F.G.H.I.J.K.L.M.N.O.P.
Diffusion
-A.B.C.D.E.F.G.H.I.J.K.L.M.N.O.P.
Active transport
-A.B.C.D.E.F.G.H.I.J.K.L.M.N.O.P.
Cellular respiration
-A.B.C.D.E.F.G.H.I.J.K.L.M.N.O.P.
Fermentation
-A.B.C.D.E.F.G.H.I.J.K.L.M.N.O.P.
Diabetes
-A.B.C.D.E.F.G.H.I.J.K.L.M.N.O.P.
HDL
A.
Positively charged particles found in the nucleus of an atom
B.
The major source of energy for animals
C.
Movement of molecules across a membrane powered by ATP
D.
Composed of nucleotides forming RNA and DNA
E.
The net movement of molecules down a concentration gradient
F.
Movement of water across a membrane
G.
Special fats containing more protein than cholesterol
H.
Organelle where the citric acid cycle and electron transport occur
I.
Carbohydrate metabolism disorder
J.
Energy transformation resulting in alcohol, cheese, and yogurt
K.
Cells that do not contain a nucleus
L.
Building blocks of proteins
M.
The site of protein synthesis
N.
The process of converting energy in food to usable energy for cells
O.
The outer boundary of cells
P.
Published material written by the actual researcher
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