Blood Glucose

Blood Glucose

Objectives:

Content: State the normal levels of blood glucose, outline hypoglycemia & hyperglycemia, explain transportation of glucose Language: Read and Write about blood glucose and its transport Share in cooperative groups about blood glucose and its transport

01. RESUME

Normal levels of blood glucose at rest

The human body normally keeps blood glucose levels very stable at 4.mmol/L - 4.5 mmol/L

Hypoglycemia

• Also known as low blood sugar this is caused by skipping a meal, excessive exercise,
• In diabetics it causes high insulin levels

Hyperglycemia

• Also known as high blood sugar this usually develops slowly. It can take several hours or days
• Infections can cause this
• In diabetics it causes low insulin levels

TRANSPORTATION OF gLUCOSE

glut 4 & glut 1: pROTEINS IN CHARGE OF THE TRANSPORT OF GLUCOSE IN THE CELLS

GLUT 4 AT REST

whERE

GLUT 4 transporters are inside intracellular vesicles they allow for greater glucose movement into the cell this is stimulated at rest after eating and there is a rise in insulin

Muscle fibers contain GLUT 1 and GLUT 4 proteins to move glucose into muscular cells

At Rest

GLUT 4 During physical activity

Most glucose will travel through the GLUT1 transporters

They will be stimulated without insulin during physical exercise this is due to the stimulation of calcium ions.