Intro To Micro

Question 1

Bacteria has

Answer 1

A structure in its cell called peptidoglycan

Question 2

What is the”domain of life”?

Answer 2

Bacteria- cyanobacteria and heterotrophic bacteria

Archaea- halophiles and thermophiles

Eukaryotes- (seen with the naked eye) plants- animals- fungus. (Not seen with the naked eye) chromists- aveolates- rhodophyles- flagellates- basil protists

Question 3

Botulism

Answer 3

Clostridium botulinum

Question 4

1 mL of seawater has

Answer 4

50 million viruses

Question 5

Coccus

Answer 5

Round (circular)

Question 6

Fungi

Answer 6

Eukaryotic, Uni or Multi Cellular

Yeast- unicellular

Mushrooms and mold- multi cellular

They reproduce sexually or asexually

Question 7

Spirilium

Answer 7

Spiral

Question 8

1 g of soil has

Answer 8

1 million species of bacteria

Question 9

Eukaryotes have

Answer 9

True nucleus

Question 10

Flagella

Answer 10

Long filmented appendage

Question 11

Cilia

Answer 11

Short filmented appendage

Question 12

Psuedopods

Answer 12

Means “false foot”. They ooze forward and push a cell into its place

Question 13

It’s considered living if it has…

Answer 13

• cell- homeostasis (distinction from inside/outside of cell)
• reproduces
• grows and develops
• assimilation
• has genetic material

Question 14

Size of Viruses

Answer 14

Are super tiny and can only be seen by an electron microscope (10-300 nm)
1 m = 1000 mm
1 mm = 1000 micrometers
1 micrometer = 1000 nano meters
so...10 to the -9 is 0.000000009 m

Question 15

Microbes include:

Answer 15

viruses, yeast, molds, bacteria, fungi

Question 16

Fungi can be beneficial:

Answer 16

Mushrooms

Question 17

Bacillus

Answer 17

Rod shaped

Question 18

Bacteria has been around for:

Answer 18

3.5 Billion years

Question 19

The typical human has:

Answer 19

10-100 Trillion cells

Question 20

Humans have been around for:

Answer 20

10,000 years

Question 21

We study microbes because

Answer 21

Microbes rule the world!

Question 22

Algae

Answer 22

Derives from the sun (photosynthesis) and it releases oxygen into the environment

Question 23

Prokaryotic organisms have

Answer 23

No nuclei

Question 24

The earth has been around for:

Answer 24

4.6 Billion years

Question 25

Giardia Lamblia

Answer 25

Is disease causing (diarrhea disease)

Question 26

Protozoa

Answer 26

Are unicellular and eukaryotes. Moves throughout the environment. They are aquatic and free swimmers

Question 27

Animal Parasites

Answer 27

Are non-microorganisms, Eukaryota and multi-cellular. Examples include: tapeworms and ring worm

Question 28

Is Algae a prokaryote or eukaryote? Is it uni or multi cellular?

Answer 28

Eukaryotic, Multi and uni cellular

Question 29

Bacteria are

Answer 29

Prokaryotic and unicellular

Question 30

Fungi can be harmful

Answer 30

Black Mold Sickness

Question 31

Viruses

Answer 31

• Don’t self-reproduce. They rely on host for reproduction; humans- common cold, animals- rabies, bacteria- phage.
• assimilates energy- uses host
• growth and development- they mature into virions which are infectious virus particles.
• viruses don’t consume nutrients or expel waste.
• they’re never made from a cell because they are acellular.
• there’s no such thing as a viral cell

Question 32

Euglena

Answer 32

Non-Disease causing

Question 33

Archaea are what? What type of environment do they prefer?

Answer 33

Are extremophiles. They prefer extreme environments such as very salty, very acidic and very hot

Question 34

Are Archaea eukaryotes or prokaryotes?

Answer 34

Contains characteristics of both eukaryotes and bacteria but are classified as prokaryotes. They don’t fit in with eukaryotes because they have no nucleus and they don’t fit in with bacteria because they lack peptidoglycan.