MCB2289 Online Quiz 2 Latest

 uestion 1 1 out of 1 points The antibiotics penicillin and cephalosporin are produced by Selected Answer: Fungi Answers: Algae Slime molds Fungi Protozoans  Question 2 1 out of 1 points Damage that can occur to the host cell as a result of viral infection include: Selected Answer: all answers are correct Answers: lysis altered cell shape detachment from tissue surface all answers are correct  Question 3 1 out of 1 points Transmissible spongiform encephalopathies are caused by Selected Answer: Prions Answers: Flavoviruses Virusoids Prions Orthomyxoviruses  Question 4 1 out of 1 points The stage of the growth curve where the bacteria are producing molecules necessary for cell division, but not undergoing cell division is called the ___________ Selected Answer: lag phase Answers: death phase This study source was downloaded by from CourseH on :14:28 GMT -05:00 This study resource was shared via CourseHgarithmic phase stationary phase lag phase  Question 5 1 out of 1 points Microorganisms that show optimal growth in moderate temperatures (between 20° C and 45° C) are called Selected Answer: Mesophiles Answers: Thermophiles Psychrophiles Mesophiles Psychrotroph s  Question 6 1 out of 1 points Viruses that infect bacteria are called _______. Selected Answer: Bacteriophages Answers: E. coli lytic viruses naked viruses Bacteriophages  Question 7 1 out of 1 points Bacteria that use organic compounds as the source of both carbon and energy are referred to as Selected Answer: Chemoheterotrophs Answers: Photoautotrophs Chemoautotrophs Photoheterotrophs Chemoheterotrophs  Question 8 This study source was downloaded by from CourseH on :14:28 GMT -05:00 This study resource was shared via CourseH1 out of 1 points Bacteria that use oxygen, but only at a low concentration, are classified as Selected Answer: Microaerophiles Answers: Obligate aerobes Microaerophiles Obligate anaerobes Aerotolerant anaerobes  Question 9 1 out of 1 points The viruses that cause chickenpox, shingles, and mononucleosis belong to which family of DNA viruses? Selected Answer: Herpesviridae Answers: Herpesviridae Papovaviridae Adenoviridae Poxviridae  Question 10 1 out of 1 points Legionella, Thiobacillus and Burkholderia are examples of Selected Answer: Gram-negative aerobic rods Answers: Facultative anaerobic gram-negative rods Gram-negative aerobic rods Spirochetes Anaerobic gram-negative cocci  Question 11 1 out of 1 points Organisms that require or are tolerant of salt concentrations in their environment are called: Selected Answer: halophiles Answers: psychrophiles aerobes This study source was downloaded by from CourseH on :14:28 GMT -05:00 This study resource was shared via CourseHlophiles heterotrophs  Question 12 1 out of 1 points Bacterial replication is accomplished primarily by Selected Answer: Binary fission Answers: Mitosis Meiosis Cytokinesis Binary fission  Question 13 1 out of 1 points Toxoplasma gondii belongs to which group of eukaryotic organisms? Selected Answer: Protozoans Answers: Algae Fungi Protozoans Helminths  Question 14 0 out of 1 points Fungi and some protozoa produce a compound called _____ which strengthens the cell membranes Selected Answer: estrogen Answers: cholesterol ergosterol hopanoids estrogen  Question 15 1 out of 1 points The correct sequence of stages in the multiplication of animal viruses is Selected Answer: This study source was downloaded by from CourseH on :14:28 GMT -05:00 This study resource was shared via CourseHtachment, penetration, uncoating, biosynthesis, assembly, release Answers: attachment, penetration, uncoating, biosynthesis, assembly, release penetration, attachment, assembly, uncoating, biosynthesis, release attachment, uncoating, penetration, biosynthesis, assembly, release penetration, uncoating, adsorption, biosynthesis, assembly, release  Question 16 1 out of 1 points Viruses can infect Selected Answer: All organisms Answers: Plants Bacteria Animals All organisms  Question 17 1 out of 1 points Staphylococci and streptococci are best classified in the group of Selected Answer: Gram-positive cocci Answers: Gram-positive cocci Gram-negative cocci Gram-negative aerobic rods and cocci Anaerobic gram-negative cocci  Question 18 1 out of 1 points Rod-shaped bacteria, some of which are endospore forming, are referred to as Selected Answer: Bacilli Answers: Cocci This study source was downloaded by from CourseH on :14:28 GMT -05:00 This study resource was shared via CourseHBacilli Spirals Vibrios  Question 19 1 out of 1 points Parasitic organisms that spend most of their time in a mammalian host are called ________ Selected Answer: helminths Answers: protozoans fungi helminths algae  Question 20 0 out of 1 points The subgroup of fungi that are used as food(edible mushrooms, morels, and truffles) are called Selected Answer: Lichens Answers: Basidiomycota Ascomycota Lichens Zygomycota  Question 21 1 out of 1 points The causative agent for Lyme disease is a Selected Answer: Spirochete Answers: Spirillium Spirochete Vibrio Diplococcus  Question 22 1 out of 1 points Fungi are free-living _________ organisms. This study source was downloaded by from CourseH on :14:28 GMT -05:00 This study resource was shared via CourseHSelected Answer: Heterotrophic Answers: Autotrophic Chemotrophic Heterotrophic Phototrophic  Question 23 0 out of 1 points All of the following viruses can cause the common cold except Selected Answer: Coronaviruses Answers: Coronaviruses Adenovirus Herpesviruses Rhinoviruses  Question 24 0 out of 1 points The so-called "red tide" is generally caused by which of the following organisms? Selected Answer: Diatoms Answers: Lichens Bacteria Diatoms Algae  Question 25 1 out of 1 points Beadlike chains of cocci formed after cell division along a single axis are called Selected Answer: Streptococci Answers: Diplococci Streptococci Tetrads staphlococci This study source was downloaded by from CourseH on :14:28 GMT -05:00 This study resource was shared via CourseHThis study source was downloaded by from CourseH on :14:28 GMT -05:00 This study resource was shared via CourseH Powered by TCPDF ()