metabolism in conformers and regulators

Question 1

abiotic factors

Answer 1

temp, pH, salinity
- may affect an organisms ability to maintain its metabolic rate

Question 2

conformers

Answer 2

internal environment dependant on external environment and abiotic factors that affect it
- less adaptable to change

Question 3

regulators

Answer 3

maintain internal environment regardless of external environment

Question 4

advantage and disadvantage of conformers

Answer 4

advantage:
- don’t use energy consuming mechanisms to maintain internal state
- behavioural responses allow them to tolerate variation in external environment to maintain optimum conditions

disadvantage:
restricted to narrow ecological niche

Question 5

by extending conformers narrow ecological niche

Answer 5

they can tolerate or resist variation in external environment

Question 6

thermoconformers and osmoregulators

Answer 6

when some animals conform to external temps and regulate internal salinity levels

Question 7

advantage and disadvantage of regulators

Answer 7

advantage:
- can occupy greater range of ecological niche
- alter metabolic rate and maintain steady state by employing physiological means

disadvantage:
- high energy costs

Question 8

homeostasis

Answer 8

control and maintenance of a steady state in internal environment of an organism
eg steady temp of river otter and stable conc in freshwater

Question 9

negative feedback control

Answer 9

• controls body internal environment
• involves the monitoring of internal factors by specialised cells in body that respond by triggering actions to return the internal state to a normal level

Question 10

thermoregulation

Answer 10

control of a steady internal body temp