Quiz: Microbiology Test Questions!

20 Questions | By Ianrobertson | Updated: Mar 20, 2022 | Attempts: 368

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Quiz: Microbiology Test Questions! - Quiz

Grab your lab coats, ladies and gentlemen, because we’re heading off to the lab! In the following scientific quiz, we’re going to be focusing our microscopic lenses in on the topic of microbiology, the study by which we analyze microorganisms, such as bacteria, viruses, fungi, and protozoa. Do you know all about these little creatures? Take the quiz to find out just how well you do!

Questions and Answers

1.

Which of these processes releases the most energy when one molecule of glucose is respired?
- A.
  
  Anaerobic respiration in yeast
- B.
  
  Anaerobic respiration in animals
- C.
  
  Aerobic respiration in animals
2.

What temperature is reached in autoclaving?
- A.
  
  100
- B.
  
  120
- C.
  
  115
3.

What substrate is used in the production of yoghurt?
- A.
  
  Lactose
- B.
  
  Lactic Acid
- C.
  
  Glucose
4.

Which of the following is a difference between yoghurt and cheese production?
- A.
  
  Milk is thickened by the build up of acid
- B.
  
  Milk is thickened by the activity of enzymes
- C.
  
  Milk is thickened when it is incubated with bacteria
5.

Which of the following is not found in Yeast cells and Plant cells?
- A.
  
  Cellulose cell wall
- B.
  
  Cell membrane
- C.
  
  Vacuole
6.

Biogas contains
- A.
  
  Methy Acetate
- B.
  
  Methanol
- C.
  
  Methane
7.

Biogas fermenters are lined with concrete because
- A.
  
  It resists the build up of pressure
- B.
  
  It is not corroded
- C.
  
  It is a cheap material
8.

Biogas fermenters are buried because
- A.
  
  It protects microbes
- B.
  
  It protects animals
- C.
  
  It removes an eye sore
9.

Antibiotics are produced in large quanities in a fermenter when
- A.
  
  Aerobic conditions are present
- B.
  
  Protein nutrients are in short supply
- C.
  
  When fungi grow well
10.

A cooling jacket of water surrounding a fermenter can be used to
- A.
  
  Increase the temperature of the liquid in a fermenter
- B.
  
  Remove the products of a ferment
- C.
  
  Introduce oxygen for microbes to respire aerobically
11.

Organisms that produce antibiotics are
- A.
  
  Animal cells
- B.
  
  Yeast
- C.
  
  Moulds
12.

A disadvantage of biofuels is
- A.
  
  It reduces the demand for fossil fuels
- B.
  
  It increases the output of carbon dioxide compared to fossil fuels
- C.
  
  It causes overproduction of maize
13.

Which of the following generates a useful source of energy as well as a type of fertiliser?
- A.
  
  The production of biogas
- B.
  
  The production of fuel from fossil fuels
- C.
  
  The production of biofuel
14.

Malting is a step in beer production which utlises natural sources of which enzyme?
- A.
  
  ATPase
- B.
  
  Amylase
- C.
  
  Amino Acidase
15.

Which one of the following best describes the activity of yeast in the complete process of wine fermentation?
- A.
  
  Aerobic Respiration
- B.
  
  Anaerobic Respiration
- C.
  
  Aerobic and Anaerobic Respiration
16.

Mycoprotein is
- A.
  
  Rich in carbohydrate and very low in protein
- B.
  
  Rich in protein and very low in fat
- C.
  
  Rich in fat and very low in carbohydrate
17.

The source of heat in a fermenter is
- A.
  
  Microbe reproduction
- B.
  
  Microbe respiration
- C.
  
  Microbe digestion
18.

Which of the following is a difference between aerobic respiration by yeast and anaerobic respiration by yeast?
- A.
  
  Only one produces carbon dioxide
- B.
  
  Only one releases energy
- C.
  
  Only one produces ethanol
19.

Which of the following is the best explanation for why it is good practice to wash hands before handling microbes?
- A.
  
  To prevent the growth of unknown microbes
- B.
  
  To prevent contaminating hands with microbes
- C.
  
  To allow equipment to be used more than once
20.

Which of the following is not a reason for the use of rotating blades inside a fermenter?
- A.
  
  It introduces oxygen into the mixture
- B.
  
  It removes areas of excess heat from the mixture
- C.
  
  It circulates the mixture