Question 1

Which of the following is NOT found in bacterial cells

Accepted Answer

A) A cell membrane,usually surrounded by a cell wall 
B) An internal cytoplasm with ribosomes,a nuclear region and in some cases granules 
C) A variety of external structures,such as capsules,flagella and pili 
D) Respiratory enzymes contained in an internal structure surrounded by membranes 
A) A cell membrane,usually surrounded by a cell wall 
B) An internal cytoplasm with ribosomes,a nuclear region and in some cases granules 
C) A variety of external structures,such as capsules,flagella and pili 
D) Respiratory enzymes contained in an internal structure surrounded by membranes

Question 2

Attachment pili do all of the following EXCEPT

Accepted Answer

A) help bacteria adhere to surfaces. 
B) allow bacteria to form a pellicle at the air-water interface of a broth culture. 
C) clump blood cells in a process called hemagglutination. 
D) prevent the pathogenicity of certain bacteria. 
A) help bacteria adhere to surfaces. 
B) allow bacteria to form a pellicle at the air-water interface of a broth culture. 
C) clump blood cells in a process called hemagglutination. 
D) prevent the pathogenicity of certain bacteria.

Question 3

What is the function of gas-filled vacuoles in aquatic photosynthetic bacteria

Accepted Answer

A) transducers to detect chemicals and signal the cells to respond 
B) regulate the depth at which they float by changing amount of gas in vacuoles 
C) change the handedness of the helix in which the bacteria is moving 
D) allows the bacteria to respond to magnetic fields 
A) transducers to detect chemicals and signal the cells to respond 
B) regulate the depth at which they float by changing amount of gas in vacuoles 
C) change the handedness of the helix in which the bacteria is moving 
D) allows the bacteria to respond to magnetic fields

Question 4

Which of the following groups of organisms is not prokaryotic

Accepted Answer

A) Archaea 
B) Bacteria 
C) Eubacteria 
D) Eukarya 
A) Archaea 
B) Bacteria 
C) Eubacteria 
D) Eukarya

Question 5

Which of these statements about eukaryotic cell division is false

Accepted Answer

A) the nuclei of eukaryotic cells divide via the process of mitosis 
B) haploids are cells that receive only one chromosome from each pair of chromosomes 
C) a single round of mitosis results in the production of four haploid cells 
D) during mitosis the nuclear envelope breaks apart and the spindle apparatus forms 
A) the nuclei of eukaryotic cells divide via the process of mitosis 
B) haploids are cells that receive only one chromosome from each pair of chromosomes 
C) a single round of mitosis results in the production of four haploid cells 
D) during mitosis the nuclear envelope breaks apart and the spindle apparatus forms

Question 6

Bacterial ribosomes:

Accepted Answer

A) have a sedimentation rate of 70S 
B) are made up of 30S and 40S subunits 
C) have a sedimentation rate of 80S 
D) are made up of 50S and 30S subunits 
A) have a sedimentation rate of 70S 
B) are made up of 30S and 40S subunits 
C) have a sedimentation rate of 80S 
D) are made up of 50S and 30S subunits

Question 7

Inclusions found in bacteria generally would not include:

Accepted Answer

A) granules 
B) volutin 
C) metachromatic granules 
D) ribosomes 
A) granules 
B) volutin 
C) metachromatic granules 
D) ribosomes

Question 8

Lysozyme,found in human tears,controls the growth of bacteria by _____.

Accepted Answer

A) fusing with vacuoles 
B) containing multiple kinds of digestive enzymes 
C) digesting peptidoglycan 
D) preventing peptidoglycan synthesis 
A) fusing with vacuoles 
B) containing multiple kinds of digestive enzymes 
C) digesting peptidoglycan 
D) preventing peptidoglycan synthesis

Question 9

A typical bacterial cell has a salt concentration of about 1%.If the cell is placed in a solution containing 10% salt,the net flow of water will be _____.

Accepted Answer

A) out of the cell 
B) into the cell 
C) equally in and out of the cell 
D) none of these since water doesn't cross bacterial cell membranes 
A) out of the cell 
B) into the cell 
C) equally in and out of the cell 
D) none of these since water doesn't cross bacterial cell membranes

Question 10

Extrachromosomal DNA in prokaryotic cells can be found in the form of _____.

Accepted Answer

A) chromosomes 
B) plasmids 
C) mitochondria 
D) chloroplasts 
A) chromosomes 
B) plasmids 
C) mitochondria 
D) chloroplasts

Question 11

Mitochondria:

Accepted Answer

A) are responsible for converting sunlight to chemical energy 
B) are present only in photosynthetic organisms 
C) have a double membrane 
D) are responsible for protein synthesis 
A) are responsible for converting sunlight to chemical energy 
B) are present only in photosynthetic organisms 
C) have a double membrane 
D) are responsible for protein synthesis

Question 12

Which of the following cellular structures are found only in prokaryotic cells

Accepted Answer

A) endoplasmic reticulum 
B) pili 
C) nucleolus 
D) lysosomes 
A) endoplasmic reticulum 
B) pili 
C) nucleolus 
D) lysosomes

Question 13

The Fluid-mosaic model describes the structure of _____.

Accepted Answer

A) cell walls 
B) cell membranes 
C) capsules 
D) endosymbiotic relationships 
A) cell walls 
B) cell membranes 
C) capsules 
D) endosymbiotic relationships

Question 14

Which of the following is not a common bacterial shape

Accepted Answer

A) Spirochete 
B) Coccus 
C) Disc 
D) Bacillus 
A) Spirochete 
B) Coccus 
C) Disc 
D) Bacillus

Question 15

In bacteria,the cell membrane functions in the all of the following ways except:

Accepted Answer

A) regulate movement of materials into and out of the cell 
B) synthesizes cell wall components 
C) serve as the site for protein synthesis 
D) assists with DNA replication 
A) regulate movement of materials into and out of the cell 
B) synthesizes cell wall components 
C) serve as the site for protein synthesis 
D) assists with DNA replication

Question 16

Bacilli produce fewer arrangements than cocci because _____.

Accepted Answer

A) cocci are smaller than bacilli 
B) bacilli only reproduce asexually 
C) bacilli divide along several different planes while cocci divide along a single plane 
D) cocci divide along several different planes while bacilli divide along a single plane 
A) cocci are smaller than bacilli 
B) bacilli only reproduce asexually 
C) bacilli divide along several different planes while cocci divide along a single plane 
D) cocci divide along several different planes while bacilli divide along a single plane

Exam 5: Characteristics of Prokaryotic and Eukaryotic Cells

Which of the following is NOT found in bacterial cells

Attachment pili do all of the following EXCEPT

What is the function of gas-filled vacuoles in aquatic photosynthetic bacteria

Which of the following groups of organisms is not prokaryotic

Which of these statements about eukaryotic cell division is false

Bacterial ribosomes:

Inclusions found in bacteria generally would not include:

Lysozyme,found in human tears,controls the growth of bacteria by _____.

A typical bacterial cell has a salt concentration of about 1%.If the cell is placed in a solution containing 10% salt,the net flow of water will be _____.

Extrachromosomal DNA in prokaryotic cells can be found in the form of _____.

Mitochondria:

Which of the following cellular structures are found only in prokaryotic cells

The Fluid-mosaic model describes the structure of _____.

Which of the following is not a common bacterial shape

In bacteria,the cell membrane functions in the all of the following ways except:

Bacilli produce fewer arrangements than cocci because _____.

Scope and History of Microbiology

The Microbiome

Fundamentals of Chemistry

Microscopy and Staining

Essential Concepts of Metabolism

Growth and Culturing of Bacteria

Microbial Genetics

Gene Transfer and Genetic Engineering

An Introduction to Taxonomy: The Bacteria

Viruses

Eukaryotic Microorganisms and Parasites

Sterilization and Disinfection

Antimicrobial Therapy

Host-Microbe Relationships and Disease Processes

Epidemiology and Nosocomial Infections

Innate Host Defenses

Basic Principles of Adaptive Immunity and Immunization

Immune Disorders

Diseases of the Skin and Eyes; Wounds and Bites

Urogenital and Sexually Transmitted Diseases

Diseases of the Respiratory System

Oral and Gastrointestinal Diseases

Cardiovascular, Lymphatic, and Systemic Diseases

Diseases of the Nervous System

Environmental Microbiology

Applied Microbiology

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