garytse86
Dec6-03, 01:25 PM
Hello people I am currently having problems doing my AS exam paper. Can you please help?
The question is:
During the cardiac cycle, the pressure in the left ventricle falls to a much lower level than in the aorta. Give an explanation for this difference?
I have no idea about this because we were not taught about this.
The second question was:
How the effect of temperature on the oxygen dissociation curve of haemoglobin might be advantageous to mammals?
The third question was:
State two features of capillaries that enable tissue fluid to be formed:
I only can think of one: Basement membrane is permeable so plasma can escape from the blood.
The third question was:
It is estimated that 85% of tissue fluid is reabsorbed at the venous end of a capillary. Describe what happens to the remaining tissue fluid.
It is a three-mark question: but I put:
The rest of tissue fluid is drained into the lymphatic system throught he lymph capillaries. And some fluid bathe the cells.
I really appreciate your help. Thanks a lot.
The question is:
During the cardiac cycle, the pressure in the left ventricle falls to a much lower level than in the aorta. Give an explanation for this difference?
I have no idea about this because we were not taught about this.
The second question was:
How the effect of temperature on the oxygen dissociation curve of haemoglobin might be advantageous to mammals?
The third question was:
State two features of capillaries that enable tissue fluid to be formed:
I only can think of one: Basement membrane is permeable so plasma can escape from the blood.
The third question was:
It is estimated that 85% of tissue fluid is reabsorbed at the venous end of a capillary. Describe what happens to the remaining tissue fluid.
It is a three-mark question: but I put:
The rest of tissue fluid is drained into the lymphatic system throught he lymph capillaries. And some fluid bathe the cells.
I really appreciate your help. Thanks a lot.