Bacteria & Yeast Flashcards Preview

cells, tissues and organs > Bacteria & Yeast > Flashcards

Flashcards in Bacteria & Yeast Deck (17)
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1
Q

What features do bacteria have?

A

Flagella, plasmids, cell wall, cell membrane, flagella, slime capsule, DNA (not in nucleus)

2
Q

What do yeast cell have?

A

Nucleus, cell wall, cytoplasm, cell membrane

3
Q

What is special about bacterium?

A

No nucleus so the genetic material is in the cytoplasm

4
Q

How long are most bacteria

A

1 μm

5
Q

Why can you see a bacterial colony with your naked eye

A

They grow into many millions of bacteria

6
Q

What are plasmids

A

Small circular bits of DNA carrying extra genetic information

7
Q

What may some bacteria have on the outside of the cell wall

A

A slime capsule

8
Q

Where do we use bacteria?

A

Yoghurt and cheese, sewage treatment and medicines

9
Q

What size are yeast cells

A

3-4 yμm

10
Q

How do yeasts reproduce

A

Asexual budding

11
Q

What is asexual budding

A

A new yeast cell grows out from the original cell to form a new separate yeast organism

12
Q

How do yeast cells respire in a supply of plenty of oxygen

A

Aerobically

13
Q

What is Brocken down and what is produced in respiration of a yeast cell

A

Oxygen is used to break down sugar to provide energy for the cell. Water and co2 are produced

14
Q

How will a yeast cell retire in little oxygen

A

Anaerobic ally

15
Q

What will a yeast cell produce in anaerobic respiration

A

When the yeast cell breakdown sugar in the absence of oxygen ethanol and co2 are produced

16
Q

What is the anaerobic respiration of yeast called

A

Fermentation

17
Q

What is yeast used for

A

Bread and alcoholic drinks