Transport in Humans

Which of the following vessels has thin muscle wall and a large lumen?

• Vein

• Artery

• Capillary

• Aorta

Which of the following carries blood away from heart?

• Vein

• Artery

• Capillary

• Valve

Which of the following has walls that are one cell thick and is a site for diffusion?

• Vein

• Artery

• Capillary

• Aorta

___________ carry blood at high pressure and ___________ carry blood at low pressure.

• Arteries; veins

• Capillaries; veins

• Veins; arteries

• Veins; capillaries

What type of blood vessel is shown in figure number 2?

• vein

• artery

• capilary

• aorta

These have valves that prevent backflow of blood

• arteries
• veins
• arterioles
• capillaries

What part of blood is responsible for fighting infections?

• Red Blood Cells
• White Blood Cells
• Platelets
• Plasma

What part of blood is responsible for carrying oxygen to body cells?

• Red Blood Cells
• White Blood Cells
• Platelets
• Plasma

The molecule that combines with oxygen to transport it

• albumin
• globulin
• haemoglobin
• seratonin

What part of blood is responsible for carrying wastes, nutrients, and minerals?

• Red Blood Cells
• White Blood Cells
• Platelets
• Plasma