N5 Unit 2 KA6/7 HW

Which line in the table below correctly identifies the four chambers of the heart.

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Which line in the table below correctly identifies the type of blood carried in blood vessels P, Q and R?

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The list below refers to the features of the vessels in a capillary network. Which statements refer to features that allow efficient gas exchange?

1. 1. High Branched

2. 2. In close contact with tissues.

3. 3. Thin walled

• 1 and 2 only

• 1 and 3 only

• 2 and 3 only

• 1, 2 and 3

Which label identifies alveoli?

• A

• B

• C

• D

The function of part X is to

• prevent the lungs from collapsing

• keep the airway open at all times

• prevent food entering the windpipe

• trap particles and bacteria.

The function of the villi in the small intestine is to increase the surface area for

• gas exchange

• protection

• absorption

• peristalsis.

The diagram shows an alveolus with part of its blood capillary network. At which position would blood with the highest concentration of oxygen be found?

• A

• B

• C

• D

The diagram shows some structures in a villus. Which line in the table below correctly identifies the product(s) of digestion which pass into structures X and Y?

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Which row in the table identifies how lymphocytes destroy pathogens?

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The diagram shows the chambers and blood vessels in a mammalian heart.

The chamber that receives blood from the lungs​ (a)   .

The artery that carries blood from the heart to the body ​​ (b)  

Chamber that pumps blood to the lungs = ​ (c)   .

Vein that carries blood from the body to the heart = ​ (d)  

• 2
• 6
• 3
• 7
• 1
• 4
• 5
• 8