why is a transport system needed in multicellular animals?

Define Single Circulatory system

Define Double Circulatory System.

Define Open Circulatory System

Define Closed circulatory system,

What is the external structure of the heart?

What is the internal structure of the heart?

What is the difference between the walls in the chambers of the heart?

Describe the cardiac cycle of the heart.

Why is the excitation delayed at the septum?

Why does the purkyne tissue do?

What does the SAN do?

What does the AVN do?

What the process of excitation in the heart?

What is the function of the arteries?

What is the structure of the arteries?

What is the function of the veins?

What is the structure of the vein?

How is the blood pumped back to the heart in the veins as there is not pressure?

What is the structure of the capillaries?

how is tissue fluid formed from plasma?

what is the role of haemoglobin?

What are the properties of haemoglobin that makes it able to carry oxygen?

What is the oxygen disassociation curve?

what happens during the formation of the dissociation curve?

what percentage of oxygen can be carried in the blood?

How is carbon dioxide carried in the blood?

How does the carbonic acid form in the blood?

What is the equation for the formation of carbonic acid?

What happens when the carbonic acid dissociates?

How is the cell charge kept constant?

What is the chloride shift?

What does the haemoglobin act as?

Why does the haemoglobin act as a buffer?

How does the haemoglobin act as buffer?

What is the Bohr effect?

What happens to the curve when the Bohr shift occurs?

what is the difference in the affinity between the adult and fetal haemoglobin?

Why does the fetal haemoglobin have a higher affinity?

Where is the dissociation curve of the fetal haemoglobin in comparison with the adult haemoglobin?