Chapter 5 Heat Sugar

Question 1

Examples of positive feedback

Answer 1

Childbirth and blood clotting

Question 2

Heat exhaustion vs heat stroke

Answer 2

Your body is tired and dehydrated from maintaining temperature
Temperature is too high

Question 3

Low blood sugar

Answer 3

Caused by exercise or normal metabolism
When extreme you can experience sweaty, dizzy, hungry, tingly lips, fast heartbeat or feeling emotional

Question 4

High blood sugar

Answer 4

Caused by eating carbs
When extreme can cause nausea, vomiting, thirst, short of breath, weakness and confusion

Question 5

Glucoreceptors

Answer 5

In the alpha and beta cells in the islets of langerhans in the pancreas

Question 6

Modulator of glucoregulation

Answer 6

Alpha cells release glucagon in event of low blood sugar
Beta cells release insulin in event of high blood sugar

Question 7

Mode of action of insulin

Answer 7

Glycogenesis. Production of glycogen in liver, skeletal muscles and adipose
Glycolysis. Increases cell permeability to glucose
Lipogenesis production of triglycerides
Increases protein synthesis

Question 8

Mode of acrion of glucagon

Answer 8

Glycogenolysis breaks glycogen into glucose
Gluconeogenesis new glucose
Absorption and digestion of new glucose
Aided by adrenaline (more increases glycogenolysis)