Metabolic Control

Question 1

List 2 subcellular networks

Answer 1

Signalling pathways and protein-protein interactions

Question 2

List 3 cellular networks

Answer 2

Immune network
Nervous network
Contractile network

Question 3

How is homeostasis achieved

Answer 3

Negative feedback + no time delay

Question 4

How is a switch or bistability achieved

Answer 4

By positive feedback. A mutual inhibition or a mutual activation

Question 5

How are oscillations achieved

Answer 5

By negative feedback and time delay

Question 6

Define hysteresis

Answer 6

Is the memory of a stimulus long after its withdrawal

Question 7

Define bistability

Answer 7

The conversion of continuous stimulus into discrete response

Question 8

List 6 processes for which you cannot use an analogous response?
What kind of response is appropriate here?

Answer 8

Fertilization
Cell division
Differentiation
Action potentials
Apoptosis
T-cell activation.
These require a graded response

Question 9

metabolism

Answer 9

is the sum of chemical changes within a cell through which energy and basic components are provided for essential processes