Prescotts Principles of Microbiology 1st Edition Willey Sherwood Woolverton Test Bank

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Prescotts Principles of Microbiology 1st Edition Willey Sherwood Woolverton Test Bank Download

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ISBN-10: 0077213416

ISBN-13: 9780077213411 978-0077213411

1. Which of the following is useful in distinguishing between procaryotic and eucaryotic cells?
A. The use of DNA for the storage of genetic information
B. The presence of ribosomes for the synthesis of proteins
C. The presence of membrane-delimited organelles within the cytoplasm
D. All of the choices
2. The endoplasmic reticulum is composed of flattened sacs called
A. Thylakoids
B. Cristae
C. Cisternae
D. Vacuomes
3. The Golgi apparatus is responsible for the
A. The assembly of ribosomes
B. Packaging of materials for excretion
C. Formation of mesosomes
D. Replication of chromosomes
4. A (n) __________ is a special type of lysosome used by a cell to digest portions of its own
cytoplasm.
A. Suicide vacuole
B. Turnover lysosome
C. Recycling vacuole
D. Autophagic vacuole
5. Which of the following is a function of the mitochondrion?
A. Tricarboxylic acid cycle enzyme reactions
B. Electron transport
C. ATP synthesis
D. All of the choices
6. The nucleolar organizer is a part of a specific chromosome that directs the synthesis of
A. Transfer RNA (tRNA)
B. Ribosomal RNA (rRNA)
C. Messenger RNA (mRNA)
D. Heterogeneous nuclear RNA (hnRNA)
7. A cell with a diploid number of 12 chromosomes undergoes mitosis. The number of chromosomes in
each of the daughter cells is
A. 24
B. 6
C. 12
D. 16
8. A cell with a diploid number of 12 chromosomes undergoes meiosis. The number of chromosomes in
each of the daughter cells is
A. 24
B. 6
C. 12
D. 16
9. Construction of flagella and/or cilia is directed by the
A. Axoneme
B. Tubulin
C. Centriole
D. Basal body
10. Membrane delimited intracellular structures that perform specific functions in cells are called
A. Organelles
B. Organs
C. Tissues
D. Systomis
11. Protein filaments with a diameter of 4-7 nm that play a role in cell movement and shape change are
called
A. Microtubules
B. Microfilaments
C. Intermediate filaments
D. Mycelia
12. Protein filaments with a diameter of 8-10 nm that are major components of the cytoskeleton are
called
A. Microtubules
B. Microfilaments
C. Intermediate filaments
D. Mycelia
13. A filamentous organelle comprised of tubulins with a diameter of 25 nm is called
A. Microtubule
B. Microfilament
C. Intermediate filament
D. Mycelia
14. The process by which a cell imports large particles by enclosing them in vesicles pinched off from the
plasma membrane is called
A. Exocytosis
B. Phagocytosis
C. Pinocytosis
D. Nutrient cytosis
15. A lysosome containing undigested material is called
A. A phagosome
B. An endosome
C. A residual body
D. A coated vesicle
16. An organism with two copies of each chromosome is said to be
A. Haploid
B. Diploid
C. Aneuploid
D. Monoploid
17. An organism with one copy of each chromosome is said to be
A. Haploid
B. Diploid
C. Aneuploid
D. Monoploid
18. Which of the following organelles is involved in the modification, packaging, and secretion of materials?
A. Lysosomes
B. Golgi apparatus
C. Mitochondria
D. Centrioles
19. Enzymes needed to digest all types of macromolecules are found in
A. Lysosomes
B. Golgi apparatus
C. Mitochondria
D. Centrioles
20. Proteins are synthesized on structures called
A. Mesosomes
B. Lysosomes
C. Ribosomes
D. Chromosomes
21. The major site of cell membrane synthesis is the
A. Nucleus
B. Plasma membrane
C. Lysosome
D. Endoplasmic reticulum
22. Receptor mediated endocytosis
A. Depends on formation of clathrin coated pits that pinch off
B. Allows for concentration of molecules such as hormones, growth factors, and cholesterol
C. Involves formation of caveolae that are enriched in cholesterol and caveolin
D. Is typically used to internalize plasma membranes added by exocytosis
E. All of the choices
F. Two of the choices
23. The proteosome
A. Functions to degrade most misfolded eucaryotic proteins
B. Produces peptides for antigen presentation during immunological responses
C. Hydrolyzes ubiquitin-marked eucaryotic proteins in an ATP dependent process
D. All of the choices
24. An arrangement of microtubules located in the matrix of cilia and flagella is called the __________.
A. Axial bundle
B. Axial filament
C. Axoneme
D. Axillary tubule
25. The Golgi apparatus is comprised of vesicles called __________, which may be clustered in one region or
scattered throughout the cell.
A. Cristae
B. Thylakoids
C. Cisternae
D. Vesiculae
26. The enzymes and electron carriers involved in electron transport and oxidative phosphorylation are
located in the __________ membrane of the mitochondrion.
A. Inner
B. Outer
C. Inner and outer
D. Neither inner nor outer
27. The organelle responsible for harvesting light as an energy source for photosynthesis is the
A. Kinetoplast
B. Centriole
C. Chloroplast
D. Mitochondrion
28. The formation of carbohydrate (CO2
fixation) in the dark reaction of photosynthesis, takes place in
the
A. Stroma
B. Cytoplasm
C. Thylakoid membrane
D. Nucleus
29. The light reactions of photosynthesis, which form ATP and NADPH, take place in the
A. Stroma
B. Cytoplasm
C. Thylakoid membrane
D. Nucleus
30. Flimmer filaments
A. Permit flagella to pull rather than push the cell
B. Function to move cells on solid surfaces
C. Are components of all eucaryotic flagella
D. None of the choices are true
31. Stacks of cisternae in the Golgi apparatus are referred to as
A. Stigmata
B. Golgisomes
C. Dictyosomes
D. Lamellisomes
32. An important function of the Golgi apparatus and ER is synthesis of
A. Mitochondria
B. Lysosomes
C. Ribosomes
D. Nucleolus
33. The nucleolus plays a major role in synthesis of
A. MRNA
B. TRNA
C. RRNA
D. Transcription activation proteins
34. Lysosomes maintain an acidic environment by actively pumping protons into their interior.
True False
35. Mitosis is the process in eucaryotes in which the cell divides after the chromosomes in the nucleus have
been duplicated.
True False
36. Chloroplasts are the site for both the light and dark reactions of photosynthesis.
True False
37. The majority of mitochondrial proteins are manufactured under the direction of the nuclear DNA by
cytoplasmic ribosomes.
True False
38. DNA is replicated prior to the start of mitosis.
True False
39. The membrane bound structure that contains the chromosomes of eucaryotes is called the nucleus.
True False
40. Eucaryotes usually have more than one chromosome for the storage of genetic information.
True False
41. The endoplasmic reticulum is mostly devoid of ribosomes (smooth) when cells are producing large
quantities of lipid.
True False
42. Although similar in function, the eucaryotic ribosome is generally smaller and more complex than the
procaryotic ribosome.
True False
43. Coenocytic cells are produced when mitosis takes place in the absence of cytokinesis.
True False
44. Like procaryotic cells, most eucaryotic cells have an external cell wall.
True False
45. The nucleolus is a highly active region of the chromatin that is required for synthesis of ribosomes.
True False
46. The major difference between the storage vacuoles of eucaryotes and the inclusion bodies of procaryotes
is that the former are membrane bound whereas the latter are not.
True False
47. Electron transport reactions that occur in the mitochondria of eucaryotes take place on the inner
membrane of that structure.
True False
48. In addition to being more complex chemically, the basic structure of the plasma membrane of eucaryotic
cells is very different from that of procaryotic cells.
True False
49. Coated pits containing clathrin do not permit concentration of ingested macromolecules prior to
endocytosis.
True False
50. Endoplasmic reticulum (ER) with many ribosomes attached is called __________ ER, whereas
endoplasmic reticulum that is mostly devoid of ribosomes is called __________ ER.
________________________________________
51. Ribosomes synthesizing proteins that are to be excreted are located on the __________.
________________________________________
52. Loosely organized genetic material containing those genes being actively expressed is called
__________, whereas tightly organized (condensed) genetic material containing those genes not being
actively expressed is called __________.
________________________________________
53. Long filaments containing microtubules and used for cellular locomotion are called __________, whereas
short fibers containing microtubules and used for cellular locomotion are called __________.
________________________________________
54. The __________ is a complex structure or set of structures lying beneath the plasma membrane of many
protozoa and some algae, which gives some cells their characteristic shape.
________________________________________

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