Microbiology: An Introduction (13th Edition)
13th Edition
ISBN: 9780134605180
Author: Gerard J. Tortora, Berdell R. Funke, Christine L. Case, Derek Weber, Warner Bair
Publisher: PEARSON
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Textbook Question
Chapter 4, Problem 2R
Endospore formation is called (a) _____. It is initiated by (b) _____. Formation of a new cell from an endospore is called (c) _____. This process is triggered by (d) _____.
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Which of the following is NOT true about endospores?
O 1) Spores are resistant to heat, radiation, cold, and dessication.
O 2) One endospore germinates into one vegetative cell.
O
3) They are a method of reproduction for bacterial cells when growth conditions
are inhospitable.
O 4) Endospores are clinically significant in causing disease.
O 5) The endospore has a thick spore coat that protects it.
One of the common defense mechanisms pathogenic bacteria have to avoid phagocytosis is the presence of:(a) Pili(b) A cell membrane(c) Peptidoglycan(d) A capsule(e) Endospore formation
A. iMAGE 1
1. What is a special characteristic of the microorganism shown?
CHOICES: A.It shows colonies in clusters. ,B.It's movement is aided by its, C.monotrichous flagella., D.It's cells occur in pairs., E.It contains a waxy lipid on its walls., F.It has an endoflagella. ,GIt contains an endospore., H.It shows colonies in chains. I.It's movement is aided by its peritrichous flagella. J. It is eukaryotic.
2. What staining method is done?
CHOICES: A. Ziehl-Neelsen Stain, B. Schaeffer C. Fulton Stain, D. Flagella Stain, E. Gram Stain, F. KOH MounT
3.How do you describe the shape of the microorganism ?
CHOICES:A. Filamentous B. Cocci ,C. possible ,D. Spirochete, E. Bacilli ,F. Pleomorphic
4. How do you describe the shape of the microorganism?
CHOICES:A. Staphylococcus aureus ,B. Vibrio cholerae, C. Leptospira interrogans, D. Escherichia coli ,E. Malassezia furfur ,F. Neisseria gonorrhoeae ,G. Streptococcus pyogenes , H. Bacillus anthracis, I. Mycobacterium tuberculosis
5. What could…
Chapter 4 Solutions
Microbiology: An Introduction (13th Edition)
Ch. 4 - DRAW IT Diagram each of the following flagellar...Ch. 4 - Endospore formation is called (a) _____. It is...Ch. 4 - DRAW IT Draw the bacterial shapes listed in (a),...Ch. 4 - Match the structures in column A to their...Ch. 4 - Why is an endospore called a resting structure? Of...Ch. 4 - Compare and contrast the following a. simple...Ch. 4 - Prob. 7RCh. 4 - Starch is readily metabolized by many cells, but a...Ch. 4 - Match the characteristics of eukaryotic cells in...Ch. 4 - NAME IT What group of microbes is characterized by...
Ch. 4 - Which of the following is not a distinguishing...Ch. 4 - Which statement best describes what happens when a...Ch. 4 - Which statement best describes what happens when a...Ch. 4 - Which statement best describes what happens when a...Ch. 4 - Which of the following statements best describes...Ch. 4 - Which of the following is false about fimbriae? a....Ch. 4 - Which of the following pairs is mismatched? a....Ch. 4 - Which of the following pairs is mismatched? a....Ch. 4 - You have isolated a motile, gram-positive cell...Ch. 4 - The antibiotic amphothericin B disrupts plasma...Ch. 4 - How can prokaryotic cells be smaller than...Ch. 4 - The smallest eukaryotic cell is the motile alga...Ch. 4 - Two types of prokaryotic cells have been...Ch. 4 - In 1985, a 0.5-mm cell was discovered in...Ch. 4 - When E. coli cells are exposed to a hypertonic...Ch. 4 - Clostridium botulinum is a strict anaerobe; that...Ch. 4 - A South San Francisco child enjoyed bath time at...Ch. 4 - Live cultures of Bacillus thuringiensis (Dipel)...
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- Endospores are a) resistant to extreme temperatures b) produced by some prokaryotes c) can survive for decades d) all of the abovearrow_forwardWhich among statements A-D is not applicable to endospore formation? A) O It is likely to occur during the log phase of growth. B) O Formation of a mother cell occurs during the process. C) OIt is a property found in members of genus Bacillus and genus Clostridium. D) O Dipicolinic acid and calcium ions play an important role in making the spore highly resistant to environmental conditions, E) OA-D are all are applicable to endospore formationarrow_forwarda salt water protist is placed in fresh water. Which of the following events would most likely occur? a.) the cell would shrink b.) the cell would remain the same (no change in shape) c.) the cell would start to cry d.) the cell would swell e.) an increase in the action of its ciliaarrow_forward
- which of these are important in creating biofilms? (select all that apply) choose the correct answer. A) GLYCOCALYX B) FLAGELLA C) ARCHAELLA D) AXIAL FILAMENTS E) FIMBRIAEarrow_forwardIn the diagram below, identify the structures of a cyanobacterial cell based on the following descriptions: a) Outer cellular covering which includes: Mucilaginous layer – outermost layer covering the cell wall; protects the cell from harmful factors of the environment Cell wall – found just below the mucilaginous layer; 2 or 3-layered, the inner layer lies in between the outer wall layer and plasma membrane; the outer layer is made of peptidoglycan Innermost plasma membrane – selectively permeable membrane enclosing the cytoplasm b) Cytoplasm – found below the plasma membrane; the protoplasm which contains structures of different shapes and functions. Lamellae, which contain pigments such as chlorophylls, carotenes, xanthophylls, phycoerythrin and phycocyanin, are located in the peripheral region of cytoplasm. Ribosomes may also be found scattered in the cytoplasm. c) Nucleic material – the nucleoplasm that is centrally located in the cell and contains chromatin in the form…arrow_forwardWhat do we call cells that do not contain an endospore? a)lysogenic cells b)mother cells c)vegetative cells d)endospore cells e)vegetable cellsarrow_forward
- Endospores are..... is the answer a, b, c, d, or e? a - metabolically inactive. b - resistant to heat and chemical destruction. c - formed by certain gram + bacteria through sporulation. d - able to germinate when conditions are good. e - All of the choices are correct.arrow_forwardIn the period of bacterial growth,the phase where cells grow rapidly by binary fission is ? a)lag phase b) log phase c) stationary phase d) mitotic phase e )decline phasearrow_forwardwhich of these are important in creating biofilms? (select all that apply) A) GLYCOCALYX B) FLAGELLA C) ARCHAELLA D) AXIAL FILAMENTS E) FIMBRIAEarrow_forward
- Which of the following would occur if a motile bacterium were moving towards an attractant? A) Oa lower frequency of clockwise rotation of flagella B) Oa greater frequency of counterclockwise rotation of flagella C) Oa decrease in the frequency of tumbles D) OA, B, and C are correct E) OA and B are correct F) OB and C are correctarrow_forwardWhy do you think an infection caused by an endospore former might be harder to treat than one caused by a non-spore former?arrow_forwardAdherence to the intestinal lining by a bacterium may be due to its possession of _____. A) endospores B) pili C) a flagellum D) F+ plasmidarrow_forward
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Prokaryotic vs. Eukaryotic Cells (Updated); Author: Amoeba Sisters;https://www.youtube.com/watch?v=Pxujitlv8wc;License: Standard youtube license