Answer Options:
True
False
Answer: True
Question: Urea broth is an example of a medium that is:
Selective
Differential
Both
Answer: Both
Question: Which of the following is a characteristic of exploratory data? (select all that apply)
Answer: Small sample size
Data analysis is non-statistical
Question: In which stage of mitosis do the identical sets of chromosomes uncoil and resume their chromatin form?
Answer Options:
A. anaphase
B. telophase
C. metaphase
D. prophase
Answer Options:
A. anaphase
B. telophase
C. metaphase
D. prophase
Answer: B. telophase
Question: The electron microscope has revealed that one of the components within the cell consists of pinwheel array of 9 triplets of microtubules arranged to form a hollow tube. This structure is a ________.
Answer Options:
A. centrosome
B. ribosome
C. centriole
D. chromosome
Answer Options:
A. centrosome
B. ribosome
C. centriole
D. chromosome
Answer: C. centriole
Question: Which of the following is an example of a suspension?
Answer Options:
a) salt water
b) blood
c) rubbing alcohol
d) cytosol
Answer: b) blood
Question: Amino acids joining together to make a peptide is a good example of a(n) _______ reaction.
Answer Options:
A. decomposition
B. exchange
C. synthesis
D. reversible
Answer: C. synthesis
Question: A pair of tweezers is a good example of a second-class lever.
Answer Options:
A. True
B. False
Answer: B. False
Question: Which of the following statements is false?
Answer Options:
A. Chemical reactions proceed more quickly at higher temperatures.
B. Chemical reactions progress at a faster rate when the reacting particles are present in higher numbers.
C. Catalysts increase the rate of chemical reactions, sometimes while undergoing reversible changes in shape.
D. Larger particles move faster than smaller ones and thus collide more frequently and more forcefully.
Answer: D. Larger particles move faster than smaller ones and thus collide more frequently and more forcefully.
Question: Which of the following is an example of a suspension?
Answer Options:
a) salt water
b) blood
c) rubbing alcohol
d) cytosol
Answer: b) blood
Question: Bending your head back until it hurts is an example of ________.
Answer Options:
circumduction
extension
hyperextension
flexion
Answer: hyperextension
Question: Mitochondria ________.
Answer Options:
A. contain some of the DNA and RNA code necessary for their own function
B. synthesize proteins for use outside the cell
C. are single membrane structures involved in the breakdown of ATP
D. are always the same shape
Answer Options:
A. contain some of the DNA and RNA code necessary for their own function
B. synthesize proteins for use outside the cell
C. are single membrane structures involved in the breakdown of ATP
D. are always the same shape
Answer: A. contain some of the DNA and RNA code necessary for their own function
Question: In which stage of mitosis do the identical sets of chromosomes uncoil and resume their chromatin form?
Answer Options:
A. anaphase
B. telophase
C. metaphase
D. prophase
Answer Options:
A. anaphase
B. telophase
C. metaphase
D. prophase
Answer: B. telophase
Question: There is only one cell type in the human body that has a flagellum.
Answer Options:
True
False
Answer Options:
True
False
Answer: True
Question: A cell engulfing a relatively large particle will likely utilize _______.
Answer Options:
a) phagocytosis
b) pinocytosis
c) receptor-mediated endocytosis
d) exocytosis
Answer: a) phagocytosis
Question: Pointing the toes is an example of _______.
Answer Options:
pronation
circumduction
plantar flexion
protraction
Answer: plantar flexion
Question: A gene can best be defined as ________.
Answer Options:
A. a segment of DNA that carries the instructions for one polypeptide chain
B. noncoding segments of DNA up to 100,000 nucleotides long
C. a three-base triplet that specifies a particular amino acid
D. an RNA messenger that codes for a particular polypeptide
Answer Options:
A. a segment of DNA that carries the instructions for one polypeptide chain
B. noncoding segments of DNA up to 100,000 nucleotides long
C. a three-base triplet that specifies a particular amino acid
D. an RNA messenger that codes for a particular polypeptide
Answer: A. a segment of DNA that carries the instructions for one polypeptide chain
Question: Which of the following statements is false?
Answer Options:
A. Enzymes require contact with substrate in order to assume their active form.
B. Enzymes may use coenzymes derived from vitamins or cofactors from metallic elements.
C. Enzymes may be damaged by high temperature.
D. Enzymes have the ability to accelerate reactions as much as a billion-fold.
Answer: A. Enzymes require contact with substrate in order to assume their active form.
Question: Select the most correct statement regarding nucleic acids.
Answer Options:
A. Three forms exist: DNA, RNA, and mDNA.
B. DNA is a long, double-stranded molecule made up of A, T, G, and C bases.
C. tRNA is considered a molecular slave of DNA during protein synthesis.
D. RNA is a long, single-stranded molecule made up of the bases A, U, G, and C.
Answer: B. DNA is a long, double-stranded molecule made up of A, T, G, and C bases.