The heart, blood and enzymes

Which is NOT a function of the circulatory system?

• deliver O₂ and nutrients to cells
• remove CO₂ and wastes from cells
• break down carbohydrates into glucose
• transport other materials through body

Carry blood toward heart; mostly oxygen-poor

• Arteries
• Veins
• Capillaries

liquid portion of the blood, carries glucose and hormones

• leukocytes

• erthryocytes

• plasma

• thrombin

Carry blood away from heart; mostly oxygen-rich

• Arteries
• Veins
• Capillaries

What carries oxygen around the body?

• Plasma

• Red Blood Cells

• Platelets

• White Blood Cells

Tags

NGSS.MS-LS1-3

Thin-walled vessels that allow for the exchange of O_{2 ,} CO₂, nutrients and wastes between blood cells or air sacs in the lungs

• Arteries
• Veins
• Capillaries

What is the function (job) of the platelets?

• To form blood clots when you have cuts and grazes.

• To transport oxygen to the muscles

• To carry dissolved sugars.

• To produce antibodies

Valves in veins

• make the use of a skeletal muscle pump unnecessary for venous blood flow
• are the leading cause of high blood pressure.
• cause venous blood flow to go in only one direction
• are formed of the tunica media

What is the main function of WHITE BLOOD CELLS?

• Needed in blood clotting

• Defense our body from any disease microorganisms

• Carry oxygen to body cells

• Eliminate waste product from body cells

Enzymes are considered to be 

• Lipids
• Carbohydrate
• Protein
• Nucleic Acid

Tags

NGSS.MS-LS1-7