MCQ-4: Transport in Animals

When the blood glucose concentration is low, which hormone is released and which organ releases it?

The diagram shows the vessels associated with the flow of fluids to and from body cells.
Which is the lymph vessel?

The diagram shows a cross-section through a human blood vessel.

Which type of blood vessel does the diagram show?

What happens as the blood flows from the atria into the ventricles of the heart?

The diagram represents the circulatory system of a mammal.
In which chamber of the heart are the muscle walls thickest?

The diagram shows a circulatory system.

Which vessels carry oxygenated blood?

What happens to the heart valves when the ventricles contract?

The diagram shows human blood cells, as seen under a microscope.

What is the function of cell X?

The table shows the concentration of red blood cells, white blood cells and platelets in the blood of four patients.
Which patient is most likely to have a deficiency of iron in their diet and will find it difficult to form a blood clot?