Cell signalling and hormones

Question 1

what is autocrine signalling

Answer 1

signals from the same cell

Question 2

what is paraffine signalling

Answer 2

signals from nearby cells

Question 3

what is endocrine signalling

Answer 3

signals via hormones from distant multicellular organisms

Question 4

how do cells elicit a response to a signal

Answer 4

through a cascade

Question 5

what is the difference between exocrine and endocrine glands

Answer 5

exocrine - into duct - sweat and bile ducts
endocrine - into the blood

Question 6

list some functions of hormones

Answer 6

regulate metabolism, control growth and development, help establish circadian rhythm, slow but longer lasting effects.

Question 7

What types of hormones are the most common

Answer 7

peptides - insulin

Question 8

what hormones are lipid soluble

Answer 8

steroids - aldosterone, cortisol, androgens

Question 9

name the three types of hormone interactions

Answer 9

Permissive, synergistic, antagonistic

Question 10

what is a permissive hormone

Answer 10

one hormone requires simultaneous another hormone. epinephrine and thyroid

Question 11

what is a synergistic hormone

Answer 11

they act together to produce a greater effect

Question 12

give an example of an antagonistic pair of hormones

Answer 12

e.g. glucagon and insulin

Question 13

what is hormone secretion controlled by

Answer 13

plasma concentration, other hormones and neural input