Blood@

Question 1

What is blood plasma?

Answer 1

• Liquid part of blood.

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Question 2

What does blood plasma transport?

Answer 2

• Soluble digestion products from small intestine to other organs.
• Co2:
• From the organs to the lungs to be breathed out.
• Waste Product Urea from the liver to the kidneys to be excreted in the urine.

Question 3

What are red blood cells?

Answer 3

• Transports oxygen from the lungs to the body cells.

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Question 4

What is the 1st adaption of red blood cells?

Answer 4

1) Haemoglobin: A molecule that combines with oxygen in the lungs to form= Oxyheamoglobin.
- Travels to the organs where the oxyheamoglobin releases the oxygen.

Question 5

What is the 2nd adaption of red blood cells?

Answer 5

• Have no nucleus.
• ## More room for haemoglobin!.

Question 6

What is the 3rd adaptation of red blood cells?

Answer 6

• Centre of cells= Has dimples.
• Shape= Bioconcave shape.
• Gives red blood cells a greater surface area so that the oxygen diffuses out rapidly.

Question 7

What are white blood cells?

Answer 7

• Form part of the immune system.

- E.g: Making antibodies.

Question 8

What is the first feature of white blood cells?

Answer 8

• Contains a nucleus.

- Contains DNA which encodes the instructions that white blood cells need to do their job.

Question 9

What are platelets?

Answer 9

• Tiny fragments of cells.

- Help blood to clot.

Question 10

What are the uses of donated blood?

Answer 10

• Replace lost blood in injuries.

- Give platelets