Practice Food Microbiology Multiple Choice Questions with Answers Quiz-1

Q.1.

How do viruses cause disease?

by secreting toxins
by producing excess waste
by damaging or killing cells
by competing with healthy cells for nutrients

Q.2.

What is most likely the greatest economic benefit for North Carolina from biotechnology?

improvements in DNA testing leading to more arrests
fewer people who use laboratory-created human insulin
increased disease-resistant crops and greater crop yields

Q.3.

Which disease is caused by a virus?

rabies
AIDS
lyme disease

Q.4.

Which characteristic makes bacteria suitable for scientific research of disease?

They are multicellular.
They reproduce rapidly.
They keep virus populations under control.
They grow in four stages allowing growth control.

Q.5.

Which helps humans to resist an infectious disease?

heredity
immunity
pathogens
vectors

Q.6.

Based just on the name, which of the following groups of bacteria contains entirely species that consume organic compounds for food?

cyanobacteria
green nonsulfur bacteria
green sulfur bacteria
nonphotosynthetic bacteria

Q.7.

Organism that is genetically engineered by inserting a gene from another organism.

bacteria
forensics
transgenic organism
penicillin

Q.8.

Which disease-causing agent could quickly multiply into colonies of billions of cells in the space of a drop of water?

fungi
viruses
bacteria
protists

Q.9.

Which would be least effective in preventing the spread of a disease-causing organism?

using vaccines
decreasing pesticide use
using antibiotics
All of above

Q.10.

The Anopheles mosquito transmits the parasite Plasmodium to humans. Plasmodium causes malaria. In this situation, which is the vector of the disease?

Anopheles mosquito
Plasmodium
human
malaria

Q.11.

A disease caused by a pathogen is called a(n)

virus
immune disease
infectious disease
non infectious disease

Q.12.

Which of the following is not true about the process of fermentation?

It can help preserve foods, preventing spoilage.
It converts sugars to organic acids, alcohols, and/or gases such as carbon dioxide.
It is carried out exclusively by unicellular eukaryotes such as yeast.
It is used to make foods such as cheese and bread.

Q.13.

Which of the following is true of the microbial world?

All microbes are harmful
Many microbes are pathogenic
Most microbes are helpful
Humans could survive without microbes

Q.14.

Bergey’s Manual of Systematic Bacteriology is used primarily as which of the following?

a guide to bacterial shapes
a list and characterization of all known medically relevant microbes
a reference for bacterial classification
a historical account of changes in classification techniques

Q.15.

Which is the best description of the primary purpose of a phylogeny?

Phylogenies show all the alterative names for each species.
. Phylogenies show all the common names for each species.
Phylogenies show evolutionary relatedness between organisms.
Phylogenies show interactions between species in a shared habitat.

Q.16.

Viruses not included in phylogenetic trees for which of the following reasons?

It is too difficult to observe their characteristics.
They lack a nucleus.
They are acellular and nonliving.
They do not have any genes, which prevents genetic analysis.

Q.17.

Which leads to the conclusion that strep throat is a bacterial infection?

Strep throat is treated with vaccines.
Strep throat is treated with antibiotics.
A strep infection will go away without being treated.
A person who has strep throat can never have it again.

Q.18.

What is most unique about E. coli?

It is a bacteria that causes illness in humans.
It is a bacteria that has caused outbreaks through contaminated food.
It is harmless in animals’ intestines, but if ingested may cause illness.

Q.19.

Which best compares a virus to a bacterium?

A virus is a large, living particle, and a bacterium is a large, living cell.
A virus is a tiny, nonliving particle, and a bacterium is a large, living cell.

Q.20.

Which best explains why antibiotics are ineffective in treating viral infections?

Viruses destroy the antibiotic.
Antibiotics only kill living cells.
Antibiotics increase the rate of viral growth.
Viruses escape antibiotics by hiding in cells.

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