Which among the following is INCORRECT about the blood?
A
Blood is saltish to taste.
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B
Blood has a slightly alkaline pH.
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C
Blood is stationary in the blood vessels.
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D
Arterial blood is bright red in colour.
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Solution
The correct option is C Blood is stationary in the blood vessels. Blood is a circulatory body fluid which is always in motion in the blood vessels. It is dark red in colour in veins and bright red in the arteries. This difference in colour is due to the low level of oxygen in the vein compared to the arteries. It is saltish in taste and has a slightly alkaline pH of 7.3-7.45.