Question

hed to maximise the exchange of gases?
10. What would be the consequences of a deficiency of haemoglobin in our bodies?
11. Describe double circulation of blood in human beings. Why is it necessary?
12. What are the differences between the transport of materials in xylem and phloer​

Answer 1

Answer:

Haemoglobin is the respiratory pigment that transports oxygen to the body cells for cellular respiration. Therefore, deficiency of haemoglobin in the blood can affect the oxygen supplying capacity of the blood. This can lead to a deficiency of oxygen in the body cells. It can also lead to a disease called anaemia.

Answer 2

Answer:

9) to maximize the exchange the gases the speed of breathing should be increased

10) if there is the deficiency of hemoglobin in blood then the transport of oxygen will stop leading to various problems or death

11) the double circulation is the process of transportation of blood two times to heart in one time i.e. once for transportation to other parts and once for heart to work.

12) the difference is that zylem transports water and dissolved minerals and phloem transports food.

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