Hormones and metabolism D5

Question 1

definition of hormone

Answer 1

chemical messenger transported randomly in bloodstream to act on distant target cells.

Question 2

definition of endocrine gland

Answer 2

gland that secretes hormones in bloodstream

Question 3

definition of endocrine system

Answer 3

collection of ductless glands that produces hormones and secretes them.

Question 4

state hormone, target organ and function of these glands
- pineal gland
- pituary gland
- thyroid gland
- adrenal gland
- pancreas
- ovaries
testes

Answer 4

• melatonin / many / biological clock
• thyroxin / liver / metabolic rate
• adrenaline / many / fight or flight
• insulin, glucagon / liver / blood sugar levels
• estrogen, progesterone / uterus