Environmental control of metabolism in microorganisms Flashcards Preview

Higher Biology > Environmental control of metabolism in microorganisms > Flashcards

Flashcards in Environmental control of metabolism in microorganisms Deck (14)
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1
Q

What is dormancy?

A

A period where metabolic rate is reduced.

2
Q

What is predictive dormancy?

A

Dormancy which occurs before the onset of adverse conditions.

3
Q

What is consequential dormancy?

A

Dormancy which occurs after the onset of adverse conditions.

4
Q

What is hibernation?

A

Reduced metabolic rate in response to a decrease in temperature. Results in decreased heart rate, breathing rate and body temperature.

5
Q

What is aestivation?

A

Period of reduced metabolic activity in response to drought or high temperature—organisms may burrow in mud or sand.

6
Q

What is daily torpor?

A

A period of reduced metabolic rate in organisms with high metabolic rates.

7
Q

What happens during daily torpor?

A

Decrease in body temperature, heart rate and breathing rate.

8
Q

What is Migration?

A

Movement over a relatively long distance to avoid metabolic adversity.

9
Q

What is a disadvantage of migration?

A

Need to expend energy to relocate

10
Q

What is meant by innate behaviour?

A

Behaviour which is inherited.

11
Q

How can we find out if behaviour is learned or innate?

A

Using cross-fostering or displacement experiments.

12
Q

How can we track organisms which migrate?

A

Ringing, tagging, colour marking, tracking using transmitters.

13
Q

What is an extremophile?

A

Organisms which can survive in extreme environments,

14
Q

How do extremophiles generate ATP?

A

Removing electrons from inorganic molecules.