Glycolysis cycle - chapter 13

PHR 3200

Steps of carbohydrate to glucose

1. dietary carbohydrates

2. small intestine

3. portal vein

4. liver

5. systemic blood

6. Insulin

7. GLUT of transporter

8. glycolysis

dietary carbohydrates (step 1)

• digestive system breaks down food

small intestine (step 2)

• glucose gets absorbed for energy in the small intestine

portal vein (step 3)

• glucose goes into the blood and travels into the portal vein

Liver (step 4)

• glucose goes through the portal vein and into liver

• liver can store or use glucose

systemic blood (step 5)

• remaining glucose is pumped to other parts of the body and heart

GLUT transporter (step 7)

• glucose exits the blood and into cells through GLUT transporter

Insulin (step 6)

• produce by pancreas

• increase the GLUT transporter in cells

• increase the glucose that enters the cells

glycolysis (step 8 )

• produce APT, NADH

investment

• steps 1 to 5

• glucose to GAP

• uses 2 ATP

pay off

• steps 6 to 10

• 2 GAP to 2 Pyruvate

• produces 4 ATP and 2 NADH