The Cell Pt 1.

Question 0

What are Archae?

Answer 0

Very distinct cells, typically live in harsh envoriments.

Question 1

Name the 3 categories of a cell

Answer 1

1. Archae
2. Prokaryotes
3. Eukaryotes

Question 2

What are prokaryotes?

Answer 2

(bacteria) Single celled organisms w/ no internal membrane structures.

Question 3

What are Eukaryotes?

Answer 3

(Animals, plants) Single to multicellular organisms w/ internal membrane structures.

Question 4

1st cells were observed by who & when?

Answer 4

Robert Hooke, 1600’s

Question 5

What are the 3 parts of cell theroy

Answer 5

1. Cell is the smallest unit of life.
2. All living things are made up of at least one cell.
3. All cells arise from pre existing cells.

Question 6

Name the 4 steps of Koch’s postulates of infectious agents

Answer 6

1. Infectious agent must be present in all individuals w/ the illness.
2. Must be able to isolate the infectious agent & cultivate it
3. Introduce the infectious agent to healthy individual & cause disease
4. Must be able to isolate the infectious agent from the newly ill

Question 7

Describe Archae

Answer 7

Single celled
no nucleus
no membrane bound organelles (cellular organs)
adapted, most live in Extreme enviroments.

Question 8

What is an extreamophiles?

Answer 8

Microorganism, Archaean, that lives in conditions of extreme enviroments.

Question 9

What pH does Acidophiles live in?

Answer 9

Extremely low pH (1-2)

Question 10

What pH does Alkaliphiles live in?

Answer 10

Extremely basic/high pH (12-14)

Question 11

Where do Anaerobes grow?

Answer 11

In very little Oxigen.

Question 12

Name the two types of Anerobes & where they grow

Answer 12

1. Facultative Anaerobes - Grow w/ or w/o Oxigen

2. Obligate Anaerobes - Obligated to grow w/o Oxigen (Oxigen is Toxic)

Question 13

Where do Halophiles grow?

Answer 13

Grow in extreme salt concentrations

Question 14

Barophiles grow in..

Answer 14

Extreme pressures (psi 14,500)

Question 15

Endolithes grow..

Answer 15

In or on rocky mineral environments

Question 16

Xerophiles grow..

Answer 16

In very little water

Question 17

Thermophiles grow in

Answer 17

Extremely high temperatures (>80*C)

Question 18

Psychrophiles grow..

Answer 18

At Cold temperatures (<15*C)

Question 19

Describe Prokaryotes

Answer 19

Mainly bacteria
single celled
no nucleus
no membrane bound organelles

Question 20

Name the 3 shapes Prokaryotes have & what do they look like?

Answer 20

1. Coccus - Round
2. Bacillus - Rod shaped bacteria
3. Spirilli - Corkscrew