Transport and excretion

Why may a kidney be rejected by the body?

How can the chance of rejection be minimized?

What are the advantage of taking anti rejection drugs?

What are the causes of kidney disease?

What would the effects of kidney disease be?

What are the two main types of treatment for kidney disease?

What are the advantages of a Xenotransplant?

What are the disadvantages of a Xenotransplant?

What are the advantages of dialysis?

What are the disadvantages of dialysis?

What types of materials pass into the bowman's capusle from the glomerolous?

What does the kidney machine do?

Why are some materials e.g. protein not filtered by the kidneys?

What process controls the amount of water in our bodies?

How does water pass into and out of our bodies?

Why is it not possible to regulate water loss by stopping sweating?

Describe how the volume and concentration of urine would change if you need to conserve water?

Describe how the volume and concentration of urine would change if you need to lose water?

What is blood concentration measured by?

When there is less water in the body what happens?

How does ADH reach the kidneys?

What does ADH do?

How is the high pressure used by ultra filtration created?

What does the absorption of minerals by the root hair depend on?

How does active transport differ from diffusion?

What does the blood consist of?

What is the function of red blood cells and describe them?

What is the function of white blood cells and describe them?

What is the function of platelets and describe them?

What is the function of the plasma and describe it?

What gives blood its characteristic colour?

Why is it an advantage that red blood cells do not contain nucleus'?

State the way the blood travels on the right side of the heart?

State the way blood travels on the left side of the heart?

Why does blood need to go through the heart twice?

How wide is a capillary?

Name two adaptations of capillaries?

Which process allows oxygen and food to leave the capillaries?

What passes out of capillaries?

Whts is the job of the heart valves?

What is the waste product removed by the kidney called?

What do the kidneys do other than excrete urea?

Describe the excretory system?

What are the three mian parts of the kidney?

What is the working unit of the kidney?

What is the ultra filtration?

What is selective reabsorbtion?

What is osmoregulation?

How does the nephron work?

How does transpiration help the upward movement of water?

What is the purpose of the waxy cuticle on a leaf?

What is the purpose of the Guard cells?

What is the purpose of the palaside layer?

What is the purpose of the stoma?

What is the purpose of the mesophyll layer?

What is the purpose of the lower epidermis?

Which process is used to make the sugars in the plants and how are they used?

Which group of chemicals are made with them minerals that plants absorb?

What are the three main mineral requirements for a plant?

Why is nitrogen necessary for plants?

Why is potassium essential for plants?

Why is phosphorus essential for plants?

What fertiliser can encourage plant growth?

How do plants use water?

How does the water enter the plant?

How does water enter the root hair cell?

How is the root hair cell adapted to absorb water and minerals?

How is the root hair cell adapted to anchor the plant?

Describe root pressure?

How is water lost and how does this cause a constant flow of water through the plant?

How do we measure how much water plants lose in transpiration?

Why do we use a layer of oil in the potometer?

Why do we use a woody shoot in the potometer experiment?

What two tubes make up the circulatory system?

Name and explain 2 properties of water that enable it to move upwards against gravity in the stem?