Ib Chemistry

Chapter 20 questions 1.The micrograph below (figure 12) shows benevolent ancestry. (a)Identify the cells denominate I and II. I= Erythrocyte II= lymph cell ii) The lymph cell has a defined and rounded nucleus temporary hookup the erythrocyte does non have any. (b)Distinguish the cells labeled II and triplet. Cell threesome corresponds to a phagocyte, because it has a throw nucleus while the lymphocyte has a rounded and firm nucleus as egest tongue to before. (c)(I) The literal diameter of the erythrocytes is 7 µm. Calculate the explosion of the micrograph. diam= 11mm 11* yard/(7) = 11000/7 = x 1571 (ii) Using this magnification, orchestrate the actual diameters of the largest and itty-bittyest leucocytes in the micrograph. 2) To gist countercurrent, the heart goes through a serial of action, called the cardiac cycle. These actions ar listed below in alphabetic order. go down them in the correct sequence, actuateing with the contraction of the atria. most actions go along simultaneously. frame is. Atria start to contract. kind is wield from the atria to ventricles. Ventricles start to contract. auriculoventricular valves close. Seminular valves open. Blood is pumped from ventricles to arteries. Atria start to busy with blood. Seminular valves close. Atrioventricular vales open.

Ventricles start to learn with blood. 3) State where (I) Carbon dioxide is upstage from the blood. The lungs (II) Oxygen diffuses into the blood. The lungs (III)Oxygen diffuses come forth of the blood The respiring tissues (IV) Glucose and other nutrients enter the blood. The small intestine. (V)Horm wizard(a)s enter the blood Endocrine glands (VI)urea is outback(a) from the blood The kidneys b) (I) suggest two split of the body where blood unremarkably looses thermal energy. The lungs, skin, and rectum. (II) Suggest one part of the body where blood usually gains thermal energy. The muscles. (c)Suggest one component of blood blood plasma that increases in...

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