2026 Microbiology Exam 1 McGraw-Hill – NEW Updated Version | Latest Exam Questions & Verified Correct Answers | Guaranteed Pass A+

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2026 Microbiology Exam 1 Mcgraw Hill questions (NEW UPDATED VERSION) LATEST
ACTUAL EXAM QUESTIONS AND CORRECT ANSWERS (VERIFIED QUESTIONS AND
ANSWERS)- GUARANTEED PASS A+ UPDATED GRADED A+

Biofilms provide pathogens with an adhesion mechanism and aid in resistance to antimicrobial
agents

T/F - CORRECT ANSWER True



QUESTION : Microbes are associated with life-sustaining benefits as well as life-threatening
diseases

T/F - CORRECT ANSWER True



QUESTION : The primary role of microbes on the planet involves causing disease in animals
and humans

T/F - CORRECT ANSWER False



QUESTION : Common commercial benefits of microorganisms include synthesis of -
CORRECT ANSWER Riboflavin, acetone, and insulin



QUESTION : The term used to describe a disease-causing microorganism is - CORRECT
ANSWER Pathogen



QUESTION : Each of the following organisms would be considered a microbe except:
bacterium, protozoan, yeast, virus, or mushroom - CORRECT ANSWER Mushroom



QUESTION : Microorganisms are involved in each of the following processes except: smog
production, O2 production, food production, decomposition of organic material, infection -
CORRECT ANSWER Smog production



QUESTION : All cells possess a cell wall

T/F - CORRECT ANSWER False




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QUESTION : A student has obtained a sample of pond water for study. Using the high-power
lens, he observes several cells with nuclei. He can conclude that the cells are not bacteria

T/F - CORRECT ANSWER True



QUESTION : Single-celled and multi-cellular organisms, with a defined nucleus and a variety
of nutritional sources - CORRECT ANSWER Eukarya



QUESTION : Archaea differ from bacteria in that archaea
-lack nuclei
-have diverse cell wall compositions
-reproduce by binary fission
-are prokaryotic

-use organic compounds for food - CORRECT ANSWER Have diverse cell wall
compositions



QUESTION : Classification of organisms into three domains is based on - CORRECT
ANSWER Cellular organization



QUESTION : The infectious agent that causes AIDS is a _______ - CORRECT ANSWER
Virus



QUESTION : Protozoan motility structures include ______________ - CORRECT ANSWER
cilia, flagella, and pseudopods


QUESTION : Viruses are not considered living organisms because they
-are structurally very simple
-cannot reproduce by themselves
-are typically associated with disease
-can only be visualized using an electron microscope

-are ubiquitous in nature - CORRECT ANSWER Cannot reproduce by themselves




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QUESTION : A prokaryotic cell may possess each of the following cellular components except
-ribosomes
-flagella
-a nucleus
-a cell membrane

-a cell wall - CORRECT ANSWER A nuclues



QUESTION : Which of the following is not associated with viruses
-chemical reactions
-protein coat
-envelope
-nucleic acid

-organelles - CORRECT ANSWER Organelles



QUESTION : The formal system for classifying and naming organisms was developed by? -
CORRECT ANSWER Carolus Linnaeus



QUESTION : In the name Staphylococcus aureus, aureus is the? - CORRECT ANSWER
Species


QUESTION : The process of pasteurization to reduce food spoilage utilizes high heat to kill all
bacteria present

T/F - CORRECT ANSWER False



QUESTION : Anton van Leeuwenhoek was the first microbiologist to use a microscope to
examine environmental samples for the presence of microorganisms

T/F - CORRECT ANSWER True



QUESTION : Spontaneous generation refers to living cells arising only from other living cells

T/F - CORRECT ANSWER False



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QUESTION : Penicillin was discovered by accident by? - CORRECT ANSWER
Alexander Fleming



QUESTION : Which disease has been eliminated through the use of vaccines? - CORRECT
ANSWER Smallpox



QUESTION : Molecular biology includes the study of?
-protein synthesis
-RNA replication
-enzyme function
-how genetic information directs protein synthesis

-DNA synthesis - CORRECT ANSWER How genetic information directs protein synthesis



QUESTION : Which physician is first associated with vaccination? - CORRECT ANSWER
Jenner



QUESTION : Mycology is the study of? - CORRECT ANSWER Molds, yeast, and
mushrooms



QUESTION : Proof that a microbe could cause disease was provided by? - CORRECT
ANSWER Koch



QUESTION : The arguments supporting spontaneous generation were finally disproved by? -
CORRECT ANSWER Louis Pasteur



QUESTION : Recombinant DNA technology has become an increasingly important part of our
life. It is used for all of the following except
-drug production
-increasing the nutritional value of food
-vaccine production



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