microbiology, Principles and Explorations

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created 5 years ago by Melissa_Malosa
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Microbiology
Chapters 5, 10, 11
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updated 5 years ago by Melissa_Malosa
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1
  1. Each of the following are type of enzymes except:

They increase the activation energy of a reaction

2
  1. When glucose is broken down by glycolysis during bacterial fermentation, how many net ATP are generated?

TWO (2)

3
  1. During unfavorable growth conditions, many protozoa can convert to a resistant, dormant stage, called

a Cyst

4
  1. All of the following are helminthes except:

Trypanosomes

5
  1. Which of the following is a unique characteristic of viruses that distinguishes major groups of microorganisms?

Lack of metabolism

6
  1. Viral nucleic acids include which of the following?

ALL OF THE CHOICES: Double stranded DNA, Single Stranded DNA, Double stranded RNA, Single Stranded RNA

7
  1. Viruses belong to which kingdom on the Whittaker Tree?

None of the above (Monera, Protista, Mycetae, Anamalia)

8
  1. Mammalian viruses capable of starting tumors are:

Oncoviruses

9
  1. Which is not a characteristic of fungi?

Photosynthetic

10

A naked virus only has a(n):

Nucleocapsid

11

The majority of reduced NAD is produced in:

Kreb’s Cycle

12

Which of the following protozoan phyla do not have organisms that produce cysts?

Apicomplexa

13

When microbes live independently but cooperate and share nutrients, is called:

Synergism

14

During aerobic cellular respiration, the final electron acceptor is:

Oxygen

15

Lysogeny refers to:

Viral genome inserting into bacterial host chromosome

16

The group of protozoa that uses pseudopodia to move are the:

Sarcodina

17

The woven, intertwining mass of hyphae that makes up the body of a mold is

Mycelium

18

Enzymes are:

Proteins that function as catalysts

19

Enyzmes that function inside a cell are:

Endoenzymes

20

Cruetzfeld-Jacob disease:

A spongiform encephalopathy of humans

21

Fungi that grow as yeast at one temp but will grow as mold at another are called:

Dimorphic

22

Which group of microorganisms is composed only of genetic material wrapped in a protein covering?

Viruses

23

23.Infectious protein particles are called:

Prions

24

Which is mis-matched:

Helminthes – unicellular

25

Virus capsids are made from subunits called

Capsomers

26

In the cell, energy released by electrons is often used to phosphorylate:

ADP

27

Viruses acquire envelopes around their nucleocapsids during:

Release

28

During which of the phases of cellular respiration is the majority of ATP formed?

Electron transport

29

Formation of peptide bonds between amino acids to build a polypeptide would be called:

Anabolism

30

Filamentous fungi are called:

Molds

31

Host range is limited by:

Type of host cell receptors on cell membrane

32

Protists include:

Algae and protozoa

33

The group of protozoa that are not mobile are the:

Apicomplexa

34

Bread molds are identified and classified based on:

They form zygospores

35

The group of protozoa that have flagella are the:

Mastigophora

36

Helical and icosahedral are terms used to describe the shapes of a virus':

Capsid

37

When microbes in close nutritional relationship and one benefits but the other does not is called:

Commensalism

38

The most likely place where an exoenzyme participates in a chemical reaction is:

Outside the cell

39

As the electron transport carriers shuttle electrons, they actively pump ________ into the compartment setting up a concentration gradient called the proton motive force.

Hydrogen ions

40

Most fungi obtain nutrients from dead plants and animals. These fungi are called:

Saprobes

41

What is mismatched? Platyhelminth- cestodes

Playhelminth - nematodes

Flatworms – fluke

Roundworm - nematodes

Playhelminth - nematodes

42

In which stage of aerobic respiration is water produced?

Electron transport system

43

Reactants are converted to products by:

Breaking and forming bonds

44

Fermentation:

Requires an organic electron acceptor

45

In Whittaker’s system, the Protozoa and Algae are classified in:

Protist

46

All of the following pertain to glycolysis except:

Degrades glucose to C02 and H20

47

Visible, clear, well-defined patches in a layer of virus infected cells in a culture are called:

Plaques

48

Viruses:

Cannot be seen in a light microscope

49

Host cells of viruses include:

ALL ARE CORRECT

Humans and other animals
Plants and fungi
Bacteria

Protozoa and algae

50

All of the chemical reactions of the cell are called:

Metabolism

51

Algae use sunlight to fuel glucose synthesis. They can create glucose from inorganic c02

Photoautotroph

52

Nonsulfur bacteria capture sun energy to build their required compounds. They feed off of other organisms to acquire their carbon.

Photoheterotroph

53

Parasites and saprobes are subsets of which category of organisms?

Chemohetertroph

54

Based on what you observe, how would you describe the structure of this virus?

(Really dark picture) Enveloped icosahedral

55

What type of cell would you predict this virus would infect?

Animal cells

56

What can you predict about how this virus exits the host cell?

Budding out of the host cell

57

A yeast cell requires acidic pH in order to grow, The action of bacteria in milk lowers the pH to the required pH for the yeast. Without the action of the bacteria the yeast would not be able to grow. The bacteria can also survive in this pH. what relationship?

Commensalism

58

Your stomach produces acid that destroys many bacteria found in food. When you consume contaminated food, the stomach acid kills and keeps you from getting sick?

Parasitism

59

Certain fungi grow on the roots of plants. The fungi produce nutrients the plant needs in order to grow. The fungi are protected by the roots against bacteria that could consume them?

Mutualism