Test 1

Question 1

Label the 6 Prokaryotic shapes that we discussed.

Answer 1

1.Coccus
2.Bacillus
3.Coccus bacillus
4.Vibrio
5.Spirillum
6.Spirochete

Question 2

Label the 4 flagella arrangements

Answer 2

1. Filament
   2.Hook
   3.Basal Body
   4.Cilia

Question 3

List 2 of the 4 different gram positive and gram negative cells that we discussed.

Answer 3

1. Gram positive has a thicker cell wall
2. Has teichoic and lipotheichoic acid

Question 4

List the 3 parts of the prokaryotic flagellum and tell whether each is intracellular or extracellular

Answer 4

Basal body ( intracellular)
Hook ( extracellular)
Filament ( extracellular)

Question 5

Are autotrophs, primarily aquatic, have cell walls and can be single celled, colonial or multicellular

Answer 5

Algae

Question 6

Are heterotrophs, primarily terrestrial, have cell walls and can be single celled, colonial or multicellular

Answer 6

Fungi

Question 7

Are heterotrophs, aquatic and terrestrial, single celled, lack a cell wall and motile at some stage in their life cycle.

Answer 7

Protozoa

Question 8

Are called Infectious proteins and infect animals

Answer 8

Prions

Question 9

Have a protective “shell” called a capsid surrounding either DNA or RNA and infected all living organisms

Answer 9

Viruses

Question 10

Prokaryotes have ___ ribosomes which are structurally different from the eukaryote’s ___ ribosomes

Answer 10

70:80

Question 11

The outer membrane of a gram negative cell contains large channel proteins called __________

Answer 11

Porins

Question 12

Protein inter-bridges connect the______ of the peptidoglycan in gram positive cells

Answer 12

tetrapeptide

Question 13

Endotoxin is the ______ portion of the lipopolysaccharide in the outer membrane of the gram negative cell contains

Answer 13

Lipid A

Question 14

metachromatic granules, gas vacuoles, and magnetosomes are examples of ______

Answer 14

Inclusions

Question 15

______ contain non-essential nucleic acids and are transferred via a sex pilus during prokaryotic______

Answer 15

Plasmids and conjugation

Question 16

The region of the prokaryotic cell which contains the chromosome is called the______

Answer 16

Nuceloid

Question 17

Bacterial ___ are formed in response to adverse environmental conditions

Answer 17

Endospores

Question 18

Prokaryotic conjugation involves a modified ____ called _____ to connect 2 bacteria in order to exchange plasmid

Answer 18

Pili, sex pilus

Question 19

A eukaryotic flagella has a 9 ______ pairs of microtubules surrounding a single core pair of microtubules

Answer 19

Concertic

Question 20

What is the most important function of the plasma membrane?

Answer 20

selective permeability

Question 21

Biotechnology and symbioses are examples of positive roles microbes play in the environment, 2 others examples are _______ and _________

Answer 21

Chemical cycle, bioremediation

Question 22

Multicellular, motile via musculature, no cell wall, heterotrophs

Answer 22

parastic helminths

Question 23

Single celled, motile at some stage, no cell wall, heterotrophs

Answer 23

Protozoa

Question 24

Cell wall, motile by flagella, single cell, colonial and multicellular, autotrophs

Answer 24

Algae

Question 25

Which of the following is not part of the outer membrane of gram negative bacterial cells

Answer 25

peripheral proteins

Question 26

Which of the following prokaryotic structures could not be used for adherence?

Answer 26

All can be used for adherence

Question 27

Which of the following is a packet with 4 cells?

Answer 27

Tetrad

Question 28

The lipid A portion of the LPS of the outer membrane of the gram-negative bacterial cell is referred to as endotoxin due to its effects on our body's immune system

Answer 28

True

Question 29

The eukaryotic flagellum includes 9 concentric pairs of microtubules surrounding a single core pair of microtubules

Answer 29

True

Question 30

Emerging diseases are those which are new to the human population or have existed in the population in very low incidence until fairly recently

Answer 30

True

Question 31

Protein inter-bridges connect the tetrapeptide side chains of the peptidoglycan of gram positive cells.

Answer 31

True

Question 32

Spirochetes can have a periplasmic flagellum, also referred to as an axial filament

Answer 32

True

Question 33

The teichoic and lipoteichoic acids in the gram positive cell wall give the cell wall an overall negative charge

Answer 33

True