Biotechnology Flashcards

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1
Q

Name the 3 types of microbe.

A

Viruses Bacteria Fungi

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2
Q

What is a microbe?

A

A tiny living organism

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3
Q

Where can microbes be found?

A

Air Soil Water In and on humans

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4
Q

How do bacteria reproduce?

A

By binary fission

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5
Q

How do funghi reproduce (replicate)?

A

By budding

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6
Q

How do viruses reproduce (replicate)?

A

By invading cells and tricking them into replicating new copies of virus

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7
Q

How do bacteria reproduce (replicate)?

A

By binary fission.

Each bacteria is capable of splitting into 2

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8
Q

What are the 3 basic shapes of bacteria?

A
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9
Q

What does reprodcue or replicate mean?

A

To make new versions of something

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10
Q

Which is bigger and by what factor..

Bacteria or Viruses

A

Bacteria are about 100 times bigger than viruses

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11
Q

True or false

Viruses do not contain cells

A

True

and for this reason some people dont consider them to be living

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12
Q

True or False

Most bacteria found in the human body are either harmless or are in fact helpful

A

True

Only around 15% of bacteria are harmful but some can cause serious problems

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13
Q

What is a pathogen?

A

A microbe that causes disease

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14
Q

Common diseases caused by viruses

A
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15
Q

Common diseases caused by bacteria

A
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16
Q

Common diseases caused by funghi

A
17
Q

True or False?

Viruses can survive without a living host organism

A

False

18
Q

What are bodies first line of defence against microbes

A
19
Q

How do vaccines work?

A
20
Q

How can viruses be used in medicine

A
21
Q

Give some common vaccines

A
22
Q

What 3 conditions are necessary for bacterial growth?

A
  1. Warmth
  2. Moisture
  3. Food source
23
Q

List some methods of preserving foods

A
24
Q

What are some ways of preventing the spreading of microbes?

A
25
Q

List some ways microbes are spread

A
26
Q

How does antibiotic resistance occur?

A
27
Q

What gas is produced when yeast acts on sugar (fermentation)?

A

CO2

28
Q

Why does dough rise when put in the oven?

A

The CO2 expands when heated and the volume of the dough increases.