Codons are part of
A) tRNA. B) rRNA. C) mRNA. D) proteins.
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Question 2) The maintenance of a steady body temperature in the face of fluctuating environmental
conditions illustrates homeostasis.
Indicate whether the statement is true or false
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Question 3) An isotonic solution
A) has more water entering than leaving a cell.
B) has a greater concentration of solute particles than a cell.
C) has the same osmotic pressure as the cells in the solution.
D) causes a cell to shrink.
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Question 4) A biomarker is
A) any chemical in the body.
B) a gene that encodes a particular protein.
C) always a protein.
D) a body chemical associated with a particular disease or exposure to a toxin.
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Question 5) A gomphosis is a ______ joint.
A) fibrous B) synovial
C) cartilagenous D) synchondrosis
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Question 6) It is possible to determine if a child's long bone is growing by examining a radiograph of
the
A) diaphysis. B) medullary cavity.
C) articular cartilage. D) epiphyseal plate.
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Question 7) After a severe burn, new skin may grow outwards from the hair follicles. New growth
begins here because
A) a person has many hair follicles.
B) a hair follicle contains stem cells in the bulb region.
C) the hair follicles are located in the subcutaneous layer.
D) the hair follicles are very resistant to fire and heat.
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Question 8) Homeostasis is the body's maintenance of an unstable internal environment.
Indicate whether the statement is true or false
(
Question 9) A chaperone protein
A) attracts ATP.
B) brings amino acids to the appropriate tRNAs.
C) brings a tRNA to the appropriate codon on mRNA.
D) helps a protein to fold.
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Question 10) Which of the following molecules does not have a polar region?
A) Water B) Water-soluble amino acid
C) Triglyceride D) Glucose
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