6. Life Im Extremes

Question 1

What are extremophilles

Answer 1

Life adapt to survive in extreme conditions

Question 2

How to adapt to cold?

Answer 2

Cell membrane , introduce a single doubles bond into a lipid to prevent close packing making more fluid and able to operate at low temps
Anti freeze enzymes

Question 3

How to adapt to hot temps?

Answer 3

Extra bonds to modify cell membrane
Extra thermos table enzymes

Question 4

Adapt to Saline and dry conditions?

Answer 4

Controlling water loss from cells

Question 5

Extremes of ph

Answer 5

Regulations of internal ph

Question 6

Adapt fro high pressures

Answer 6

Change membrane structure to change tight packing

Question 7

Adapt fro extreme radiation

Answer 7

Effective dna repair mechanisms

Question 8

What is a chemolothoroph?

Answer 8

Use inorganics compounds as energy sources

Question 9

Why are extremophilles iseful for assessing havbitbility of other
PLaces?

Answer 9

Can survive eg after asteroid impacts where nothing else can survive allows us to see extended habitats

Question 10

Why could these extremophilles be useful in expeditions?

Answer 10

Long term space settlement require microorganisms that will survive in conditions and help support life , for oxygen productions , nitrogen fixation etc