Pearson eText Microbiology: An Introduction -- Instant Access (Pearson+)
13th Edition
ISBN: 9780135789377
Author: Gerard Tortora, Berdell Funke
Publisher: PEARSON+
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Chapter 10, Problem 9MCQ
Summary Introduction
Introduction:
Three domains includes Archaebacteria, prokaryotes and eukaryotes. Archaebacteria has the 70S ribosome and plasma membrane. Prokaryotes also has both 70S and plasma membrane. Eukaryotes also 70S and plasma membrane. These are the two unique characteristics found in all three domains.
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Members of the mycoplasma genus of bacteria do not have a cell wall for protection, existing with only a simple cell membrane made up of fatty acids and phospholipids. They cannot however, synthesize their own fatty acids. How is this possible?
A. They use host materials
B. They use peptidoglycan from other bacteria
C. They use anabolism as a way to create their outer membrane
D. They use amino acids to build their membranes
Match the terms with their correct descriptions.
a.
Many cells adhering to each other after division forming a small or possibly large mass of cells. May have other regular geometries like sets fo 4 cells.
b.
Spherical cells
c.
Many cells adhering to each other after division, end to end forming a long string of cells
d.
Cell membrane surrounded by a thick peptidoglycan cell wall
e.
Elongated or cylindrical cells with spherical ends
f.
Corkscrew or twisted elongated cells
g.
Cell membrane surrounded by a thin peptidoglycan cell wall which is then surrounded by an outer cell membrane
1.
Cocci
2.
Bacilli
3.
Spirilli
4.
Gram +
5.
Gram -
6.
Filamentous
7.
Clumped
What do you call a finger-like projection that arises from epithelial layer in
some organs that helps to increase surface area allowing for faster and more
efficient adsorption?
A. cillia
B. flagella
C. microvilli
D. villi
Cell modification is the change in the structure of cell to carry out
specialized function. Which of the following words will BEST describe the
cell modification?
A. alteration
B. differentiation
C. evolution
D. mutation
You learned that cells are structurally modified so that they can perform
their function efficiently and effectively. Which of the following structures
have specialized functions due to cell modification?
I.
Guard cells
II.
Haemoglobin
Trichomes
Xylem vessels
III.
IV.
A. 1, II and III
B. I, II and Iv
C. I, III, and IV
D. I, II, III and IV
Which of the following statements best illustrate the adaptation and function of
nodified cell?
A. The xylem in the leaf helps the leaf to be positioned horizontally towards
the sun.
B. The hair-like structure in…
Chapter 10 Solutions
Pearson eText Microbiology: An Introduction -- Instant Access (Pearson+)
Ch. 10 - Which of the following organisms are most closely...Ch. 10 - Here is some additional information on the...Ch. 10 - DRAW IT Use the additional information below to...Ch. 10 - DRAW IT Use the information in the table below to...Ch. 10 - NAME IT Use the key in the Applications of...Ch. 10 - Sergeys Manual of Systematic Bactenoiogy differs...Ch. 10 - Bacillus and Lactobacillus are not in the same...Ch. 10 - Prob. 3MCQCh. 10 - Which of the following is false about scientific...Ch. 10 - You could identify an unknown bacterium by all of...
Ch. 10 - The wall-less mycoplasmas are considered to be...Ch. 10 - Use the following choices to answer questions 7...Ch. 10 - Prob. 8MCQCh. 10 - Prob. 9MCQCh. 10 - Use the following choices to answer questions 9...Ch. 10 - The GC content of Micrococcus is 66-75 moles %,...Ch. 10 - Describe the use of a DNA probe and PCR for: a....Ch. 10 - SF medium is a selective medium, developed in the...Ch. 10 - Prob. 1CAECh. 10 - Prob. 2CAECh. 10 - Prob. 3CAE
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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.arrow_forwardAll of the following are characteristics of the bacterial flagellum except: Select one: a. It has a hook-like insertion to a basal body in the cell wall. b. It is composed of protein c. It is used in conjugation d. Counterclockwise rotation moves bacteria forward All the following are characteristics of prokaryotes except: Select one: a. Prokaryotes have cell wall b. Prokaryotes have ribosomes c . Prokaryotes have organelles d. Prokaryotes lack a nucleus e. Prokaryotes have genesarrow_forwardWhich of the following best distinguishes a prokaryotic cell from aeukaryotic cell?a. Prokaryotic cells have a cell wall, but eukaryotic cells never do.b. Prokaryotic cells are much larger than eukaryotic cells.c. Prokaryotic cells have flagella, but eukaryotic cells do not.d. Prokaryotic cells do not have a membrane-bound nucleus,but eukaryotic cells do have such a nucleus.e. Prokaryotic cells have ribosomes, but eukaryotic cells do nothave ribosomes.arrow_forward
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