1. Plant cells contain mitochondria TRUE
2. Cholesterol is found in the plasma membrane TRUE
3. An enzyme catalyzes the forward and the reverse reaction TRUE
4. All life on earth can perform glycolysis TRUE
5. Rubisco has more affinity for O2 than for CO2.FALSE
6. In living organisms, 96% of matter is composed of four
elements. Which of the choices below is NOT one of these elements?
A. Carbon B. Sodium
C. Nitrogen D. Oxygen
E. Hydrogen
7. The Profiler looks at the clues at a crime. She
then matches these clues to well-established psychological models to generate
a profile of the killer. This is an example of:
A. inductive reasoning B. deductive reasoning
8. Which of the below is now thought to be the explanation of
why giraffes have long necks?
A. to eat leaves on the tops of branches (where others
can't reach)
B. to use in ritualistic combat for mates
C. to better see predators
D. none of the above
9. Which of the following statements about the process of science
is FALSE?
A. A scientific hypothesis can be proven to be true
B. A good hypothesis is (or can be written as) an "if-then" statement
C. Scientists perform experiments to test their hypothesis
D. Based upon the results of their experiments, scientists modify
and repeat their experiments
E. All of the above are TRUE
10. What type of reaction will form a bond between two monomers
to form a polymer?
A. condensation B. reduction
C. hydrolysis D. polymerization
E. none of the above
11. In a reduction-oxidation reaction, a substance that loses
electrons is:
A. oxidized B. reduced
12. A polymer composed of amino acids is better known as a:
A. polysaccharide B. protein
C. nucleic acid D. lipid
13. The molecule to the right
is what type of molecule?
A. polysaccharide
B. protein
C. nucleic acid
D. lipid
14. All of the following are properties of living organisms EXCEPT:
A. Order B. Reproduction C. Homeostasis D.
Evolutionary Adaptation
E. All of the above are basic properties of life
15. The theory of chemical evolution proposed by Oparin
and Haldane included many conditions which must have been met for chemical
evolution to occur. Which of the below is NOT one of these conditions?
A. Small, carbon-containing compounds like formaldehyde
(H2CO) and hydrogen cyanide (HCN), must be formed
B. Small molecules react, forming sugars, amino acids,
and nitrogenous bases
C. Small molecules of prebiotic soup link together to
form nucleic acids and proteins.
D. A single molecule acquires the ability to self-replicate,
becoming the first living entity and marking the end of chemical evolution,
beginning of biological evolution.
E. ALL of the above are conditions of the Oparin-Haldane
model of chemical evolution
16. Which of the following reactants are thought by scientists
to have combined to produce formaldehyde and cyanide, the first reduced-carbon
products?
A. atmospheric molecules: NH3, CO2, N2, H2O
B. energy from sunlight
C. energy from heat
D. A and B are correct.
E. A and C are correct
17. Which of the below statements best represents one major
problem in the chemical evolution of proteins:
A. amino acids can be formed in outer space
B. amino acids are chiral - however only left-handed
forms are used in biological systems
C. peptide bond formation can be catalyzed by clays
D. NONE of the above are major problems in the chemical
evolution of proteins
18. The atmospheric conditions used in Stanley Miller's
experiments are what most scientists think were present in the early earth's
atmosphere
A. True B. False
19. Place the following steps in order for a G-protein-linked receptor sequence
I. A signal molecule binds to a receptor on the plasma membrane
II. The GTP bound to the G-protein is hydrolyzed to GDP,
inactivating the G-protein
III. A molecule of GTP displaces a molecule of GDP on the
G-protein
IV. An activated G-protein binds to a nearby enzyme, altering
the enzyme configuration, thereby altering the enzyme's function
V. The G-protein-linked receptor molecule activates a nearby
G-protein
A. I, III, V, II, IV B. V, III, IV, I,
II
C. I, II, III, IV, V D. I, V, III,
IV, II
20. If you put a fresh-water plant cell in salt water, what will
happen to the cell
A. Water will rush in, causing the cell to burst
B. Water will rush in, but the cell will not burst because
of the cell wall
C. Water will rush out, causing the cell to shrink away
from the cell wall
D. Water will rush out, causing the cell and the cell wall
to shrink
E. Water will neither rush in nor out
Oops, in my haste to get the answers up, I made a mistake when I originally posted the answer. The correct answer is "C"
21. Which of the following is NOT a component of the cell
theory of life?
A. All organisms are composed of cells
B. The cell is the structural unit of life - units smaller
than cells are not alive
C. Cells can arise by spontaneous generation
D. Cells can be cultured to produce more cells
E. All of the above ARE components of the cell theory of
life.
22. The plasma membrane is composed primarily of what amphipathic
molecules?
A. Phospholipds B. Polysaccharides
C. Proteins D. Cholesterol
23. The nuclear membrane is continuous with the:
A. Golgi apparatus B. mitochondrial membrane
C. plasma membrane D. endoplasmic
reticulum
24. The Fluid-Mosaic Model of the plasma membrane contains
all of the following characteristics EXCEPT:
A. The membrane is a fluid mosaic of phospholipids and
proteins
B. All proteins associated with the plasma membrane
are found on the surface
C. The proteins may move laterally about the plasma membrane
D. Membrane regions differ in protein configuration and
concentration
25. Which of the following structures aid in maintaining plant
turgor pressure?
A. chloroplast B. ribosome C. lysosome
D. central vacuole
26. Which of the following statements about ribosomes is FALSE?
A. Ribosomes are the "factories" of the cell involved in
protein synthesis
B. Ribosomes may either be free or bound to ER
C. Ribosomes are made up of two subunits, the large subunit
and the small subunit
D. The ribosomes of prokaryotes and eukaryotes are identical
E. ALL of the above statements are TRUE
27. Which of the following statements about noncompetitive inhibitors
is FALSE?
A. noncompetitive inhibitors bind to the active site
and interfere with substrate binding
B. noncompetitive inhibitors alter the conformation of
the enzyme
C. noncompetitive inhibitors are involved in the regulation
of metabolism
D. All of the above statements about noncompetitive inhibitors
are TRUE
28. Which of the following statements about mitochondria is FALSE?
A. Mitochondria contain DNA with functional genes
B. The proteins involved in electron transport phosphorylation
are found on the outer membrane of the mitochondria
C. The enzymes involved in the Kreb's cycle are localized
in the matrix
D. The pH of the intermembrane space is often lower than
the pH of the matrix
E. ALL of the above statements about mitochondria are TRUE
29. Enzymes function by
A. Adding energy to the system B. being
consumed in the chemical reaction
C. Lowering the activation energy D.
Increasing the amount of free energy in
E. None of the above
Oops, in my haste to get the answers up, I made a mistake when I originally posted the answer. The correct answer is "C"
30. When does photorespiration occur?
A. When oxygen is fixed to RuBP, not carbon dioxide
B. When oxygen is used in the mitochondria to break down
sugars
C. When water is split to form H+, e-, and oxygen gas in
the light-dependent reaction
D. None of the above
31. Cyclic photophosphorylation:
A. Involves photosystem II (p680)
B. Allows the chloroplast to make ATP without NADPH
C. Does not require energy from a photon
D. Has the lost electron replaced by an electron from water
E. None of the above
32. Which of the following statements about the Calvin-Benson
Cycle is FALSE?
A. The reactions of the Calvin-Benson Cycle occur in the
stroma
B. PEP Carboxylase is the enzyme responsible for fixing
CO2 in the Calvin-Benson Cycle
C. A glucose molecule is produced for every six "turns"
of the cycle (i.e. six CO2's are brought in and fixed)
D. Reaction is fueled by the ATP and the NADPH produced
in the light-dependent reactions
E. All of the above statements are TRUE
33. If all of the thylakoid membranes were dispupted (i.e.
broken open) but all of the enzymes were still intact and functional, could
the cell (chloroplast) still manufacture ATP?
A. Yes B. No
(I had to change the wording from "cell" to "chloroplast" because if it said "cell" then the answer would be yes, because the mitochondria could still make ATP. While this would have been the only answer, it would be too much of a trick question)
34. From where does p680 replenish its lost electron?
A. CO2 B. O2 C. H2O D. p700
E. it is never lost
35. Oxygen gas is a _________ to Rubisco.
A. substrate B. competitive
inhibitor
C. noncompetitive inhibitor D. enhancer
(I accepted both answers - I was shooting for Comptetative Inhibitor, but technically, oxygen is also a substrate)
36. Which of the following reaction sequences does NOT produce
CO2?
A. Glycolysis B. The conversion
of pyruvate to acetyl CoA
C. The Kreb's Cycle D. Alcoholic fermentation
E. All of the above produce CO2
37. What stage of aerobic respiration produces the most ATP?
A. Glycolysis B. The conversion of pyruvate
to acetyl CoA
C. The Kreb's Cycle D. Electron transport
phosphorlyation
38. A C4 plant does not perform the Calvin-Benson Cycle
A. True B. False
39. Alcoholic Fermentation:
A. Occurs in oxygen-starved muscle cells during a strenuous
workout
B. Converts pyruvate to lactic acid and produces 2 ATP's
C. Converts NADH to NAD+
D. Can cause dangerous buildups of CO2 in muscle cells
E. None of the above
40. The majority of a plant's ATP is produced:
A. in the chloroplast B. in the
cytoplasm during glycolysis
C. in the central vacuole D. in the mitochondria
41. EXTRA CREDIT: In class, you filled out a survey about:
A. The teaching quality at UIC
B. The use of email in your education
C. Drug use among college-aged students
D. Cultural diversity and its role in education
E. We didn't fill out no stinkin' survey in class...