2.2 Kahoot - Archaea & Bacteria Flashcards

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1
Q

Prokaryotes lack…

A

a nucleus

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2
Q

Prokaryotes replicate by

A

Binary fission

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3
Q

Prokaryotes have all of the following

A
  • Ribosomes
  • Cell Membrane
  • DNA
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4
Q

Prokaryotes belong to which kingdoms?

A

Bacteria and Archaea

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5
Q

T/F: All prokaryotes are single celled.

A

True

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6
Q

Staphlococci are….

A

Round bacteria that grow in clusters

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7
Q

Streptobacilli are….

A

Rod-shaped bacteria that grow in chains

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8
Q

What type of organism performs the process of methanogenesis?

A

Archaea

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9
Q

Methanogenesis occurs in environments lacking which substance?

A

oxygen

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10
Q

Methanogenesis produces this gas as a by-product.

A

methane

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11
Q

What type of prokaryote performs the process of photosynthesis?

A

Bacteria

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12
Q

Cyanobacteria are built similarly to this Eukaryotic cell organelle.

A

chloroplast

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13
Q

Photosynthesis produces this gas as a by-product.

A

oxygen

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14
Q

What is Chemosynthesis?

A

Using chemicals, like hydrogen sulfide, to make food

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15
Q

What type of prokaryote performs the process of chemosynthesis?

A

Archaea and Bacteria

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16
Q

To what domain do extremophiles belong?

A

Archaea

17
Q

Extremophiles are organisms with adaptations for living in extreme conditions of…

A

Pressure
Salt
Temperature

18
Q

A thermophile likes….

A

extreme heat

19
Q

Which of the following extremophiles are found in the Dead Sea? *note: the Dead Sea has very salty water

A

halophiles

20
Q

A Mesophile is a type of…

A

bacteria that require temperatures between 20 - 40°C (summer weather)

21
Q

If you put a mesophile 5° Celsius water, it would:

A

die

22
Q

What is binary fission?

A

form of asexual reproduction in single celled organisms

23
Q

What type of cell performs binary fission?

A

Archaea and Bacteria

24
Q

What is the end product of Binary Fission?

A

two cells with identical genes

25
Q

How many minutes can it take for a prokaryotic cell to grow and divide in favourable conditions?

A

20 minutes

26
Q

Which phase of the growth curve are bacteria dying and dividing at the same rate?

A

stationary

27
Q

What is conjugation in bacteria?

A

A temporary union of two organisms for DNA transfer

28
Q

In conjugation

A

the pilus attaches the host and recipient together

29
Q

What is a plasmid?

A

a small circular DNA molecule

30
Q

The function of plasmids is….

A

extra pieces of DNA that might have antibiotic resistance genes

31
Q

In transformation,

A

bacteria pick up DNA from the environment

32
Q

Why do some bacteria form endospores?

A

help them endure harsh condition

33
Q

characteristic of bacterial endospores?

A
  • long lived
  • highly resistant to heat
34
Q

What is the purpose of a gram stain?

A

To identify the type of bacteria in a sample

35
Q

T/F: gram positive bacteria have a thick peptidoglycan wall

A

True

36
Q

The outer layer of a Gram negative bacteria cell wall is made mostly of…

A

lipids

37
Q

What are antibiotics?

A

compounds that harm bacteria

38
Q

Not all bacteria are killed by antibiotics

A

True

39
Q

What is antibiotic resistance?

A

When bacteria mutate and are no longer harmed by antibiotics