AP Biology Test #2 Molecules And Cells

75 Questions  I  By Joemollica on November 18, 2010
Multiple Choice: Choose the BEST answer form the choices given.

  

Question Excerpt

Removing question excerpt is a premium feature

Upgrade and get a lot more done!
1.  Carbohydrate-containing layer at the surface of the plasma membrane
A.
B.
C.
D.
E.
2.  The process taking place in the diagram below is
A.
B.
C.
D.
E.
3.  Refer to the molecule below
A.
B.
C.
D.
E.
4.  Refer to the molecule below
A.
B.
C.
D.
E.
5.  Refer to the molecule below
A.
B.
C.
D.
E.
6.  Refer to the molecule below
A.
B.
C.
D.
E.
7.  Refer to the molecule below
A.
B.
C.
D.
E.
8.  The process taking place below is called
A.
B.
C.
D.
E.
9.  The process taking place below is called
A.
B.
C.
D.
E.
10.  From the appearance of the TURGID CELL, it can be concluded that
A.
B.
C.
D.
E.
11.  If the concentration of the FLACCID CELL is 2% then the solute concentration in the environment of the cell may be
A.
B.
C.
D.
E.
12.  When the cell membrane disconnects from the cell wall due to loss of fluid this process is know as
A.
B.
C.
D.
E.
13.  Refer to the EVENTS listed below and the DIAGRAM that follows: 1 - Guard cells become turgid 2 - Stomata close 3 - Guard cells become flaccid 4 - Stomata open 5 - Ions move into guard cells increasing the solute concentration 6 - Ions leave guard cells decreasing the solute concentration 7 - Water enters guard cells from the epidermal cells 8 - Water leaves guard cells and enters epidermal cells DIAGRAM When the sun rises and a leaf begins the process of photosynthesis, which sequence of events results in the appearance of the stomata as open
A.
B.
C.
D.
E.
14.  The ions, whose movement into and out of the guard cells cause the stomata and guard cells to open or close are
A.
B.
C.
D.
E.
15.  Human hair is an example of this type of secondary level protein
A.
B.
C.
D.
E.
16.  All of the following are considered proteins EXCEPT:
A.
B.
C.
D.
E.
17.  All of the following are true amino acids EXCEPT
A.
B.
C.
D.
E.
18.  Carbon 13 and Carbon 14 are isotopes and therefore have different numbers of
A.
B.
C.
D.
E.
19.  The biochemical process by which most organisms extract energy from food is known as
A.
B.
C.
D.
E.
20.  Cyanide poisoning is fatal within minutes since it binds irreversibly with the active sites of respiratory enzymes.  Cyanide acts as a(an)
A.
B.
C.
D.
E.
21.  Which of the following is a structural polysaccaride
A.
B.
C.
D.
E.
22.  During the synthesis of a polypeptide chain from 40 amino acids, the number of water molecules released is
A.
B.
C.
D.
E.
23.  Humans lack the enzyme necessary to digest which of the following carbohydrates?
A.
B.
C.
D.
E.
24.  The major component of the fluid bilayer of a plasma membrane.
A.
B.
C.
D.
E.
25.  Carrier molecule in the plasma membrane.
A.
B.
C.
D.
E.
26.  Steroid affecting the fluidity of the plasma membrane.
A.
B.
C.
D.
E.
27.  It is believed that an increase in the CO2 in the earth's atmosphere is causing
A.
B.
C.
D.
E.
28.  Lipid molecules are also known as triglycerides since they contain three
A.
B.
C.
D.
E.
29.  The chromosomes of eukaryotic cells contain DNA-histone complexes known as
A.
B.
C.
D.
E.
30.  A complex polysaccharide that forms the exoskeleton of insects, crustaceans and other invertebrates is
A.
B.
C.
D.
E.
31.  According to the fluid mosaic model of the plasma membrane all of the following constitute the membrane EXCEPT:
A.
B.
C.
D.
E.
32.  Unsaturated and saturated fatty acids differ in that the former have...
A.
B.
C.
D.
E.
33.  Strontium 90 is a radioactive isotope with a half-life of 28 years. Starting with 12g. of 90Sr, approximately how much of the isotope will remain in 84 years.
A.
B.
C.
D.
E.
34.  All of the following are found in prokaryotic cells EXCEPT:
A.
B.
C.
D.
E.
35.  MItochondria are referred to as the "power-houses" of the cell. Which of the following best supports this statement:
A.
B.
C.
D.
E.
36.  Which of the following is an structural isomer of glucose?
A.
B.
C.
D.
E.
37.  Buffers are important in living systems since they...
A.
B.
C.
D.
E.
38.  An organism could be classified as a bacterium based upon the presence of...
A.
B.
C.
D.
E.
39.  Which of the following is an organic compound?
A.
B.
C.
D.
E.
40.  Human red blood cells were placed into a solution isotonic to the cells. Which of the following resulted?
A.
B.
C.
D.
E.
41.  An organism that has a nutritional mutation preventing the synthesis of necessary metabolities is known as a(n)...
A.
B.
C.
D.
E.
42.  The inorganic cofactor found in the chlorophyll molecule
A.
B.
C.
D.
E.
43.  Required in ionic form for the activity of many enzymes, the maintenance of bone, and the contraction of muscle fibers. 
A.
B.
C.
D.
E.
44.  Which of the following is a stereoisomer of glucose
A.
B.
C.
D.
E.
45.  The diagram below shows a plasmodesmata connection between two adjacent plant cells, what is the type of pathway of fluid from living plant cell to another living plant cell called:
A.
B.
C.
D.
E.
46.  The diagram below shows three types of cell junctions. The ones near the top of the diagram are called:
A.
B.
C.
D.
E.
47.  Why is the phospholipid molecule so appropriate as the primary structural component of plasma membranes?
A.
B.
C.
D.
48.  Which increases the fluidity of the plasma membrane?
A.
B.
C.
D.
49.  Which best describes the structure of a plasma membrane?
A.
B.
C.
D.
50.  The movement of sodium ions from an area of higher concentration to an area of lower concentration is called...
A.
B.
C.
D.
51.  Sucrose cannot pass through the membrane of a red blood cell (RBC), but water and glucose can. Which solution would cause the RBC to shrink the most?
A.
B.
C.
D.
52.  Which of the following processes requires membrane proteins?
A.
B.
C.
D.
53.  Which of the following is not a second messenger?
A.
B.
C.
D.
54.  MHC proteins are...
A.
B.
C.
D.
55.  Plasmodesmata are a type of...
A.
B.
C.
D.
56.  Refer to the cell diagram below.  The organelle labelled 8 is:
A.
B.
C.
D.
E.
57.  Refer to the cell diagram below.  The organelle labelled 6 is:
A.
B.
C.
D.
E.
58.  A scientist chemically analyzes the plasma membrane of a cell.  He determines that it is an animal cell because he finds that it contains
A.
B.
C.
D.
E.
59.  Sugar and CO2 are dissolved in water to make soft drinks.  Which of the following is the solute
A.
B.
C.
D.
E.
60.  A researcher is observing a cell through a microscope.  She determines that it is a plant cell because she observes a
A.
B.
C.
D.
E.
61.  All of the following may be functions of proteins in the plasma membrane EXCEPT:
A.
B.
C.
D.
E.
62.  Two molecules with the same molecular formula have different biological effects.  This can be best explained if 
A.
B.
C.
D.
E.
63.  What would be the effect on an atom if the number of protons of the atom were changed?
A.
B.
C.
D.
E.
64.  What would be the effect on an atom if the number of neutrons of the atom were changed?
A.
B.
C.
D.
E.
65.  What would be the effect on an atom if the number of electrons of the atom were changed?
A.
B.
C.
D.
E.
66.  How is a saturated fatty acid different from an unsaturated fatty acid?
A.
B.
C.
D.
E.
67.  What is the correct term for the graph below?
A.
B.
C.
D.
E.
68.  The graph below shows a catalyzed reaction vs. an uncatalyzed reaction.  Which of the following statements is true about the graph?
A.
B.
C.
D.
E.
69.  The function of desmosomes is to
A.
B.
C.
D.
E.
70.  Each of the following is a polymer EXCEPT:
A.
B.
C.
D.
E.
71.  The diagram below shows a plant cell.  This can easily determined because of the presence of:
A.
B.
C.
D.
E.
72.  The diagram below shows a prokaryotic cell.  This can easily determined because:
A.
B.
C.
D.
73.  Refer to the diagram below.  The energy provided to run the pump comes from
A.
B.
C.
D.
E.
74.  In a laboratory a student found a cell under high power of the microscope.  In order to calculate the correct power of magnification she would:
A.
B.
C.
D.
75.  A person is diagnosed as having anemia characterized by the lack of red blood cells.  An insufficient amount of which inorganic cofactor could be the cause
A.
B.
C.
D.
E.
Back to top


to post comments.

Removing ad is a premium feature

Upgrade and get a lot more done!
Take Another Quiz