BIOLOGY
12th Edition
ISBN: 9781260169614
Author: Raven
Publisher: RENT MCG
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Chapter 27, Problem 4U
Bacteria and archaebacteria may be distinguished based on
- a. the type of
nucleic acid used as genetic material. - b. cell membrane structure and chemistry.
- c. the presence and absence of organelles.
- d. size.
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Which of the following statement about the bacterial cell wall is INCORRECT?
a. The cell wall is relatively nonpermeable and restricts the passage of sugars and amino acids.
b. Gram-positive cells have more peptidoglycan in theircell walls than Gram-negative cells.
c. Gram-negative cells have a membrane both inside andoutside their cell walls.
d. The cell wall establishes a bacterium’s shape as a coccus,bacillus, or spirillum.
For bacteria to infect cells, it produces an extracellular protease that
destroys tissue structure particularly transmembrane proteins. The
bacteria are grown in culture so that the protease can be isolated.
Then the culture is centrifuged. In which sample would the
protease be most likely found?
A. Precipitate containing whole bacteria
B. Cell-free filtrate; that is, the supernatant
C. The lysate of the whole culture
D. Lysed bacteria only
E. All of these
Bacteria tend to stain more readily with cationic (positively charged) dyes because bacterial surfaces a. contain large amounts of alkaline substances. b. contain large amounts of acidic substances. c. are neutral. d. have thick cell walls.
Chapter 27 Solutions
BIOLOGY
Ch. 27.1 - Prob. 1LOCh. 27.1 - Prob. 2LOCh. 27.1 - Describe classification systems for prokaryotes.Ch. 27.2 - Prob. 1LOCh. 27.2 - Prob. 2LOCh. 27.2 - Prob. 3LOCh. 27.3 - Prob. 1LOCh. 27.3 - Prob. 2LOCh. 27.3 - Prob. 3LOCh. 27.4 - Describe the metabolic strategies employed by...
Ch. 27.4 - Compare and contrast the ways prokaryotes can...Ch. 27.5 - Describe the role of prokaryotes in biogeochemical...Ch. 27.5 - Prob. 2LOCh. 27.5 - Prob. 3LOCh. 27.6 - Prob. 1LOCh. 27.6 - Prob. 2LOCh. 27.6 - Prob. 3LOCh. 27 - Data analysis If the excision of an F plasmid Is...Ch. 27 - Prob. 1IQCh. 27 - Prob. 1UCh. 27 - A bacteria that obtains carbon from the atmosphere...Ch. 27 - Prob. 3UCh. 27 - Bacteria and archaebacteria may be distinguished...Ch. 27 - Prob. 5UCh. 27 - Prob. 6UCh. 27 - Prob. 7UCh. 27 - Prob. 1ACh. 27 - Prob. 2ACh. 27 - Prob. 3ACh. 27 - Prob. 4ACh. 27 - Prob. 5ACh. 27 - Some bacteria are capable of forming NH4+ from...Ch. 27 - Prob. 7ACh. 27 - Prob. 1SCh. 27 - Prob. 2SCh. 27 - Use of multiple antibiotics is not a bad idea if...Ch. 27 - Soil-based nitrogen-fixing bacteria appear to be...
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
- Compare the following features of bacteria to those of eukaryotic microorganisms: a. size. b. organization of genetic material. c. ribosomes. d. cell wall. e. respiration and photosynthesis. f. motility mechanisms.arrow_forwardDescribe how the size of prokaryotic cells compares to that of eukaryotic cells. A. they are about the same size B. prokaryotic cells are larger than eukaryotic cells C. eukaryotic cells are larger than prokaryotic cellsarrow_forwardWhich of the following are ordered correctly from LARGEST to SMALLEST? a. virus, yeast cell, bacterium, ribosome, water molecule b. virus, bacterium, ribosome, yeast cell, water molecule c. yeast cell, virus, bacterium, ribosome, water molecule d. yeast cell, bacterium, virus, ribosome, water molecule e. bacterium, ribosome, virus, yeast cell, water moleculearrow_forward
- The cell wall of bacteria is composed ofa. lipopolysaccharide.b. phospholipids.c. cellulose.d. peptidoglycan.e. protein capsomers.arrow_forwardCompare and contrast the structure and function of the following among bacteria and eukaryotes: a. ribosome b. flagellum c. glycocalyxarrow_forwardIn microbiology, biochemical tests are conducted to determine............. and .............. characteristics of bacteria. A. Morphology and behavior B. Metabolic and nutrition C. Metabolic and morphology D. Arrangement and nutrition E. None of the abovearrow_forward
- Which of the following is NOT a true statement about bacterial structure and function? A. Bacteria can have membrane-enclosed organelles such as mitochondria or chloroplasts B. Bacteria have a single circular chromosome made of double-stranded DNA C. Bacterial cell walls are made of a substance called peptidoglycan D. Bacterial flagella rotate to propel the cell E. Some bacteria have a capsule surrounding the cell, made of a sticky polysaccharide or proteinarrow_forwardWhich of the following can differentiate prokaryotic cells from eukaryotes (or vice-versa)? A. presence of compartmentalized and membranous organelles B. ribosomal protein synthesis C. location of the genetic material D. cytoskeletal system B, C, D only A, B, C, D A, B, C only A, C, D onlyarrow_forwardBacteria tend to stain more readily with cationic (positively charged) dyes because bacteria a. contain large amounts of alkaline substances c. are neutral b. contain large amounts of acidic substances d. have thick cell wallsarrow_forward
- 3) Which statement explains a way in which a researcher could cause a cytoplasmic protein to localize to the nucleus? a. Fuse an NLS to the cytoplasmic protein. b. Fuse an NES to the cytoplasmic protein. c. Fuse an NPC to the cytoplasmic protein. d. Create a nucleoporin specific to the cytoplasmic protein. 4) During the import of proteins into the nucleus, an importin subunit binds directly to: a. FG nucleoporins b. Ran-GDP c. basic nuclear localization signals in cargo proteins d. none of the abovearrow_forwardA bacterium has the following characteristics: I. It adheres to the human intestinal lining using a feature that protects it from phagocytes , bacteriophages, and dehydration. II. It can survive being boiled. III. It contains no plasmids and relatively little peptidoglycan. Which of the following characteristics allows this bacteria to survive in a human who is taking penicillin pills? A. gram-negative cell wall B. peptidoglycan in the cell wall C. lipopolysaccharides in the cytoplasm D. long polypeptides in the cell wallarrow_forwardBacteria lack independent internal membrane systems, but are able to perform photosynthesis and respiration, both of which use membranes. They are able to perform these functions because a. they actually have internal membranes, but only for these functions. b. invaginations of the plasma membrane can provide an internal membrane surface. c. they take place outside of the cell between the membrane and the cell wall. d. they use protein-based structures to take the place of internal membranes.arrow_forward
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