Biological 6

Question 1

What do hormones enable between cells

Answer 1

Hormones enable communications between cells hormones secreted by endocrine glands , hormone carried in the blood stream to specific target regions

Question 2

What are the similarities between neural and endocrine communication

Answer 2

Similarities
Production of chemicals stored for later realease
Stimulate to release chemicals
Some chemical act as hormones and neurotransmitters
React with specific receptors

Question 3

What are the differences between neural and endocrine communication

Answer 3

Neural communication fixed between channels to precise locations - hormonal signalling is more generalised
Neural messages are very rapid - hormonal communication slower and more prolonged
Neural messages are digitised - fire or not - hormonal signalling is analogue - more hormone the greater the effect
Some neural communication is under voluntary control - hormone release is not

Question 4

What are the main functions of hormones

Answer 4

Growth and development 
Reproduction 
Metabolism 
Maintenance of internal environment 
Control of internal organs and systems