(b) blood concentrate
     (c) lymph
     (d) antibody component
Ans: (a)
198. pH of blood remains constant due to
     (a) blood pressure
     (b) buffer action
     (c) perspiration
     (d) respiration
Ans: (b)
199. Intravascular clotting of blood is known as
     (a) anaemia
     (b) leucopenia
     (c) thrombosis
     (d) thrombin
Ans: (c)
200. The pH of normal urine of man ranges from
     (a) 6 - 8
     (b) 4.5 - 6
     (c) 2.5 - 6
     (d) 8 – 10
Ans: (a)
201. The nerve messages enter the cell through the
     (a) Dendrite
     (b) Axon
     (c) Cyton
     (d) Synapse
Ans: (a)
202. Which one of the following acts as a communication system?
     (a) Blood
     (b) Nerve
     (c) Lymph
     (d) Enzymes
Ans: (b)
203. The thermoregulatory centre in the human brain is the
     (a) Pituitary
     (b) Spinal cord
     (c) Cerebellum
     (d) Hypothalamus
Ans: (d)
204. The part of the brain in Control of Voluntary muscles is
     (a) cerebellum
     (b) medulla oblongata
     (c) pons
     (d) cerebrum
Ans: (d)
205. The olfactory area is concerned with
     (a) smell
     (b) sight
     (c) hearing
     (d) speech
Ans: (a)
206. The brain is covered by
     (a) meninges
     (b) bone
     (c) skin
     (d) All the above
Ans: (d)
207. Memory is the responsibility of
     (a) cerebrum
     (b) cerebellum