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Lecture 4

BIOL 1201 Lecture Notes - Lecture 4: Nuclear Membrane, Endoplasmic Reticulum, Endomembrane System


Department
Biological Sciences
Course Code
BIOL 1201
Professor
Bill Wischusen
Lecture
4

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MASTERING BIOLOGY 4
1. A reaction involving an increase in Enthalpy and an increase in Entropy will always be?
a. Either depending on the exact values.
2. During a chemical reaction you observe that there is an increase in enthalpy and a
decrease in the entropy. Based on these observations please indicate whether the
following statement about this reaction is true or false. The products of this
reaction are more organized than the reactants.
a. T
3. Based on the observations of the chemical reaction in the question above indicate
whether the following statement is true or false. The products would be contain
less heat energy than the reactant.
a. F
4. Based on the observations of the chemical reaction in the question above indicate
whether the following statement is true or false. This reaction will be
spontaneous.
a. F
5. A spontaneous reaction occurring at 250K and with a 2.0Kcal decrease in entropy
can have which of the following changes in enthalpy?
a. -600Kcal
6. How can one increase the rate of a chemical reaction?
a. Add a catalyst
7. Which of the following represents the activation energy of this reaction when it is
enzyme catalyzed?
a. B
8. Based on the same figure, which of the following represents the change in free
energy for the reaction?
a. C
9. A molecule which is bound to a site other than the active site of an enzyme and
causes a decrease in the rate of the reaction would be best described as a
a. Non-competitive inhibitor
10. The most abundant lipids in most membranes are
a. Phospholipids
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11. Integral proteins (those embedded in the membrane) would be expected to:
a. Have hydrophobic regions
12. Which of the following correctly matches an organelle with its function?
a. central vacuole ... storage
13. Which of the following clues would tell you if a cell is prokaryotic or eukaryotic?
a. whether or not the cell is partitioned by internal membranes
14. Which statement correctly describes the nuclear envelope of a eukaryotic cell?
a. The nuclear envelope is continuous with the endoplasmic reticulum,
15. Which one of the following statements about the endomembrane system is
correct?
a. Proteins that will be secreted from the cell are likely to be found in
closed spaces bounded by membranes of the endomembrane system.
16. Which of the following are common traits of chloroplasts and mitochondria?
a. Both have their own DNA.
17. Which of the following functions is NOT associated with the cytoskeleton in
eukaryotic cells?
a. Movement of RNA molecules from the nucleus to the cytoplasm
18. What process occurs in Box A?
a. Glycolysis.
19. What process occurs within Box B?
a. Citric acid cycle
20. What molecule is indicated by the letter D?
a. Oxygen.
21. Which of these enters the citric acid cycle?
a. Acetyl CoA.
22. In the citric acid cycle, ATP molecules are produced by ___.
a. Substrate-level phosphorylation
23. Which of these is NOT a product of the citric acid cycle?
a. Acetyl CoA
24. How many NADH are produced by glycolysis?
a. 2
25. In glycolysis, ATP molecules are produced by ___.
a. Substrate-level phosphorylation
26. Which of these is NOT a product of glycolysis?
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