Microbiology Flashcards

1
Q

Bacteria belong to the kingdom of

A

Monera

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2
Q

Bacteria are

A

Unicellular organisms

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3
Q

What are bacteria also known as

A

Prokaryotes

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4
Q

Prokaryotes

A

They have no membrane bound nucleus or cell organelle

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5
Q

Bacteria 3 shapes

A

Spherical
Rod
Spiral

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6
Q

Vaccines deal with..

A

Viruses

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7
Q

Antibiotics deal with

A

Bacteria

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8
Q

Spherical bacteria causes

A

Pneumonia

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9
Q

Rod bacteria causes

A

Anthrax and ecoli

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10
Q

Spirillum bacteria causes

A

Suphilis (std)

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11
Q

What causes the movement of a bacterial cell

A

Flagellum

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12
Q

Cell wall provides

A

Shape and structure

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13
Q

Cytoplasm contains

A

Ribosomes

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14
Q

Capsule used for

A

Protection

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15
Q

Plasmid

A

Circular piece of dna containing genes

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16
Q

What does a bacterial cell not have

A

Mitochondria or chloroplasts

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17
Q

Mitochondria

A

Provides energy

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18
Q

Def for binary vision

A

Method of how bacteria reproduces

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19
Q

What happens when binary vision occurs

A

The cell elongates and two chromosomes separate

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20
Q

Bacteria reproduce

A

Asexually

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21
Q

How are two identical daughter cells formed?

A

The cell wall grows to divide the cell in two

The chromosomes attach to the plasma membrane and the dna is replicated

22
Q

Asexually

A

Genetically identical

23
Q

Bacteria can reproduce..

24
Q

New mutations spread very..

25
What is the endospore formation
Bacterial survival technique
26
What does bacteria need to survive
Moisture heat and nutrients
27
bacteria in seeds
Allows seeds to survive in harsh conditions
28
Unfavorable conditions of bacteria
Temperature too high/ low | Not enough nutrients
29
Favorable bacteria conditions
When spores can break walls and reproduce
30
When are endospores formed
When the bacterial chromosomes replicate
31
Autotrophic
Organisms that make their own food
32
Herotrophic
Organisms that take in food naked by other organisms
33
Examples of autotrophic bacteria
Photosynthetic and chemosynthetic bacteria
34
What do photosynthetic bacteria use light for
To make food
35
Chemosynthetic bacteria uses energy from
Chemical reactions go make food
36
Aerobic
Needs oxygen
37
Name two herotrophic bacteria
Saprophytic snd parasitic bacteria
38
What does saprophytic bacteria live off
Dead organic matter
39
What does parasitic bacteria cause
Anthrax
40
Name three factors affecting the growth of bacteria
Temperature pH Pressure
41
How do you kill bacteria
With high temperature
42
How will enzymes become denatured
If bacteria is placed in an unsuitable pH
43
How are bacteria’s inhibited
By high pressures
44
How can bacteria gain/ loose weight
Osmosis
45
Beneficial bacteria
Ecoli
46
What is ecoli used to make
Enzymes and vitamins
47
Harmful bacteria
Chest infections | Food poisoning
48
Higher bacterial cytoplasm means the water moves ..
Out of the bacteria (dehydration)
49
Lower bacteria means the water..
Enters bacteria (cell wall prevents bursting)
50
Pathogens
Are microorganisms that cause disease
51
What causes disease in humans and animals
Pathogenic bacteria