Micro Organisms

Question 1

HWO do we see micro organisms

Answer 1

We can see these micro organisms by using strong microscopes. For virsus, we have to use a very strong electron microscope

Question 2

What are micro organisms

Answer 2

A micro organisms (or microbe) is an organism which is microscopic which means it’s so small that people cannot see with their naked eye

Question 3

What are the three main type of micro organisms are

Answer 3

Bacteria fungi viruses

Question 4

Micro organisms useful properties are

Answer 4

Micro organisms have various qualities which can make them useful to humans

1. They Grow and reproduce very quickly
2. They feed on many natural substances
3. They can produce a wide range of useful products

Question 5

Give an example of a disease caused by each type of micro organism

Answer 5

Virus: COVID 19
Fungal: ring worm
Bacteria: salmonella

Question 6

Give 3 examples of food/drink industry which uses micro organisms

Answer 6

Dairy - cheese & yogurt
Brewing - wine & beer.
Baking - Bread making

Question 7

If I had 10 bacteria on a agar plate and know that they reproduce every 20 minutes how many will I have after an hour

Answer 7

80

Question 8

If I had 10 bacteria on a agar plate and know that they reproduce every 20 minutes how many will I have after 2 hours

Answer 8

640

Question 9

What type of micro organism is yeast

Answer 9

Yeast is a tiny single celled fungus

Question 10

Yeast has two main uses in good and drink industry:

Answer 10

Baking - bread making
Brewing - beer and wine

Question 11

Bacteria are used in diffrent industries including:

Answer 11

Diary industry - yogurt and cheese

Question 12

Word equations for fermentation

Answer 12

_______yeast_______________________________
Sugar ——> alcohol + carbon dioxide + energy

Question 13

Detailed word equation for fermentation & bread making

Answer 13

________________ used by yeast for growth _________________________and reproduction
_________________ evaporates_______.|___
_________yeast_______|______________|____
Glucose ———> alcohol + CO2 + energy
____________________________|_____________________make bread raise____

Question 14

Word equation Fermentation in wine/beer making

Answer 14

__________________________________________________________make wine and beer
___________________alcoholic_________used ______________________|_____by Yeasts for _______________________|_________growth &
______________________|_____ reproduction ___________yeast______|_______________
Glucose ———-> alcohol + Co2 + energy
______________________________|_______
___________________________maybe __________________removed or left to
____________________different types
_____________________of wine/beer______
_____________________________________

Question 15

Word equation for bacteria and Latin acid fermentation

Answer 15

__________________bacteria_________________
Lactose ( sugar ) ————> lactic acid

Question 16

Fill in the blanks of following
___yeast___________________________________
1———->energy + 2 + 3

Answer 16

1. Glucose
2. CO2
3. Alcohol

Question 17

Which 2 food industries use fermentation

Answer 17

Bread making and brewing

Question 18

Fill in the blanks for this process
___bacteria________________________________
1—————-> 2

Answer 18

1. Lactose 2. Lactic acid

Question 19

Explain why the process of bread making must be carried without oxygen

Answer 19

One process fermentation only occurs in the absence of oxygen. If oxygen was present water would he produced instead of alcohol

Question 20

What is fermentation

Answer 20

The process that yeast uses sugar as a good source to produce alcohol and in the absence of oxygen