Digestive and circulatory system

Multiple Choice

In which part of the body of a mammal does physical digestion occur?

• Gall bladder

• Liver

• Mouth

• Pancreas

Fill in the Blanks

Where is the protein digested by trypsin?

Multiple Select

Which teeth are used for grinding food?

• 1

• 2

• 3

• 4

Fill in the Blanks

What kind of organs secreted amylase other than the salivary gland?

Multiple Choice

Which blood vessel is the pulmonary vein?

• A

• B

• C

• D

Fill in the Blanks

What is the name of this defense mechanism?

Fill in the Blanks

In which structure is most glucose absorbed into the blood?

Multiple Choice

Which part is the septum?

• A

• B

• C

• D

Multiple Choice

If the gap in the septum is not repaired, it causes the person to become breathless more quickly.

What is a possible explanation for this?

• Deoxygenated blood in the left side mixed with oxygenated blood in the right side of the heart

• Deoxygenated blood in the right side mixed with oxygenated blood in the left side of the heart

• Deoxygenated blood in the left atrium mixed with oxygenated blood in the right ventricle of the heart

• Because the leaky of the blood out of the heart

Multiple Choice

Which row of the table below shows the correct chambers of the heart, from those with the thinnest walls to those with the thickest?

• A

• B

• C

• D

Multiple Choice

Which of the following statements would be incorrect for most of the veins in the human body?

• They carry blood at low pressure

• They have valves

• They have a pulse

• They return blood to the heart.

Multiple Choice

The blood contains lymphocytes.

What is their purpose?

• Transport of hormones

• Phagocytosis

• Antibody production

• Blood clotting

Multiple Choice

Which of the following is a correct explanation as to why mammals have a double circulatory system?

• To reduce pressure of blood returning from the lungs to supply cells of the body most effciently with the reactants for respiration.

• To increase the pressure of blood sent to the lungs to supply cells of the body most effciently with the reactants for respiration.

• . To increase the pressure of blood returning from the lungs to supply cells of the body most effciently with the reactants for respiration.

• To reduce pressure of blood sent to the lungs to supply the cells most effciently with the products for respiration.

Multiple Choice

Which of the following has the correct names for the structures labelled in the diagram?

• X = Atrioventricular valve,

  Y = Semilunar valve,

  Z = Septum

• X = Semilunar valve

  Y = Atrioventricular valve,

  Z = Septum

• X = Semilunar valve

  Y = Semilunar valve,

  Z = Atrioventricular valve

• X = Atrioventricular valve,

  Y = Atrioventricular valve,

  Z = Septum

Multiple Choice

Which of the following is a correct function of bile?

• To emulsify proteins

• To neutralise the alkaline conditions of food entering the duodenum

• To provide enzymes for the digestion of lipids

• To increase the surface area of lipids for digestion

Multiple Choice

Which of the following is not an example of physical digestion?

• Breaking food up into smaller pieces by chewing it

• Starch being broken down into glucose molecules.

• Food being churned when the muscles in the stomach lining contracts.

• Bile breaking large fat droplets up into smaller ones during emulsification