Other pages in this set

Page 2

Preview of page 2

Here's a taster:

Enzymes need:
Temperature
pH
aqueous environment
no toxins/inhibitors
External Environment ­ monitored, organism changes
behaviour/physiology to reduce stress.
Env. change = stimulus. Organism change =
response.
Slow change = gradual response. Quick change = rapid
response.
Internal Environment ­ tissue fluid in animals.
Toxic/unwanted substance buildup in TF ­ cells alter own env.
CO2 changes pH, acts as stimulus, cells respond by reducing
activity ­ negative effect.
Waste/toxins enter blood from TF excreted.
Blood conc.…read more

Comments

No comments have yet been made

Similar Biology resources:

See all Biology resources »See all resources »