Transport in Living Things

What does the human circulatory system consist of?

• lungs and heart
• heart, blood vessels & blood
• blood and veins
• bones, muscles and hair

How many types of blood vessels are there?

• 1
• 2
• 3
• 4

Which blood vessel is shown in the middle of the image?

• artery
• vein
• capillary
• pulmonary

Which one of the above correctly identifies the labelled blood cells?

• A
• B
• C
• D

1.  The heart ____________________.    
I.  pumps oxygenated blood to the lungs  
II.  pumps deoxygenated blood to the rest of the body  
III.  pumps deoxygenated blood to the lungs  
IV.  pumps oxygenated blood to the rest of the body

• I  and II only
• I and IV only
• II and III only
• III and IV only

1.  Oxygen is transported from ___________________.

• lungs to body cells
• body cells to lungs
• kidneys to lungs
• brain to lungs

Carbon dioxide is transported from __________________. 

• lungs to body cells
• body cells to lungs
• kidneys to lungs
• brain to lungs

Which of the following is not a function of plasma?

• To transport digested food from the small intestine to other parts of the body.
• To remove carbon dioxide and other waste substances produced in body cells
• To transport hormones
• To remove bacteria in the blood         

During a Science lesson, the teacher told the students that unicellular organisms do not have a transport system. Which of the following questions should the pupils ask? 

• Do substances enter unicellular organisms by diffusion?
• Do substances enter unicellular organisms by transfusion?
• Do unicellular organisms need only sunlight for survival? 
• Do unicellular organisms produce their own food?

Which of the following statement is true?

• •Blood is a fluid organ, consisting of plasma, red blood cells, white blood cell and platelets. 
• Plasma contains mainly red blood cell
• The plasma transports digested food from the small intestine to other parts of the body
• blood is not a transport medium