Blood

Question 1

Composed of two parts

Answer 1

1. Plasma: water, gasses, nutrients and waste 55%
2. Formed portion: Red Blood cells, white blood cells, and platelets 45%

Question 2

Where are blood cells and platelets produced

Answer 2

Bone marrow

Question 3

Red blood cells

Answer 3

Also called erythrocytes, specialized for oxygen transport

Question 4

Hemoglobin

Answer 4

Respiratory pigment that transports oxygen and some carbon dioxide

Question 5

Anemia

Answer 5

Either too few red blood cells or too little hemoglobin
- results in less oxygen being transported
- may be caused by an iron deficiency

Question 6

White blood cells

Answer 6

Leukocytes or Leucocytes, part of immune response, 1. Granulocytes 2. Monocytes 3. Lymphocytes

Question 7

Leukaemia

Answer 7

Cancer of white blood cells

Question 8

Platelets

Answer 8

Fragments of cells that form when larger cells in the bone marrow break apart

Question 9

Key role in blood clotting

Answer 9

1. Injury triggers enzyme reactions that attract platelets
2. If calcium is present prothrombin is changed to thrombin
3. Thrombin and calcium convert firbrinogen to fibrin

Question 10

Fibrin

Answer 10

Thread like material that creates a mesh which traps blood and forms a clot

Question 11

Hemophilia

Answer 11

The blood will not clot
- caused by missing blood clotting proteins