Physiology V01 - Introduction to Human Physiology » Fall 2021 » Lecture Quiz 2

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Question #1
The diffusion rate is inversely proportional to which of the following?
A.   temperature, diffusion gradient, lipid solubility and molecular weight of the solute
B.   molecular weight of the solute
C.   temperature
D.   diffusion gradient
E.   lipid solubility
Question #2
A cell placed in a hypertonic solution will gain water.
A.   FALSE
B.   TRUE
Question #3
During primary active transport, what causes the pump protein to change shape after the attachment of the three sodium ions?
A.   release of sodium ions
B.   attachment of phosphate (from the breakdown of ATP)
C.   attachment of potassium ions
D.   attachment of an enzyme
E.   release of potassium ions
Question #4
During metaphase of mitosis, the centromeres split and the daughter chromosomes are pulled to opposite ends of the cell.
A.   FALSE
B.   TRUE
Question #5
During transcription, RNA polymerase facilitates the bonding of nucleotides to their corresponding bases along the template strand of DNA.
A.   TRUE
B.   FALSE
Question #6
Starting with the attachment of m-RNA to the small ribosome subunit, which step of translation is not correct?
A.   first t-RNA detaches from the ribosome
B.   the adjacent nucleic acids on the ends of the t-RNA bond
C.   matching anticodon of another t-RNA attaches to the next codon
D.   a large ribosomal subunit joins the complex
E.   matching anticodon of t-RNA attaches to the first codon of m-RNA
Question #7
The two pyruvate molecules produced in glycolysis each undergo decarboxylation, resulting in the formation of two molecules of CO2.
A.   TRUE
B.   FALSE
Question #8
The two acetyl coenzyme -A molecules that enters the Krebs cycle produces which of the following products?
A.   6 NADH and 2 ATP
B.   2 FADH2 and 2 ATP
C.   4 CO2
D.   4 CO2, 6 NADH, 2 FADH2 and 2 ATP
Question #9
In the electron transport chain, ATP is formed when H+ is pumped from the matrix into the intermembrane space.
A.   TRUE
B.   FALSE
Question #10
Which of the following steps of DNA replication is incorrect? Be careful with this question, there is only one word that makes the statement incorrect.
A.   on the other side, DNA polymerase attaches complementary bases in short segments as it moves toward the replication fork forming the lagging strand
B.   DNA polymerase , moving toward the replication fork, attaches complementary bases to the template strand continuously to form the leading strand
C.   the point of separation is called the replication fork
D.   at the origin of replication, helicase unwinds the helix and separates the bases
E.   the (Okazaki) fragments are then linked together by DNA ligase
Question #11
Which of the following is true of glycolysis?
A.   there is a net production of 4 molecules of ATP
B.   ATP is formed by oxidative phosphorylation
C.   glucose is decarboxylated producing 4 molecules of CO2
D.   occurs within the mitochondria
E.   glucose is converted into two molecules of pyruvate

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