Thus, the haemoglobin molecule in the red blood cell becomes darker as it loses more and more oxygen, causing the bruise to turn blue and black.
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4 sentences with “haemoglobin”
Short, simple sentences with “haemoglobin”, suitable for children and primary/elementary school, with common expressions and related words. You'll also find examples for middle and high school.
Brief definition: haemoglobin
A red protein in red blood cells that carries oxygen from the lungs to the body's tissues and returns carbon dioxide from the tissues to the lungs.
4 sentences with “haemoglobin” — examples
In each red blood cell, 280 million haemoglobin molecules continuously unfold and retract their protein arms, like starfish, to capture oxygen or expel carbon dioxide.
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During this tissue healing process, the haemoglobin molecule is literally "broken into pieces": one part is recovered and another is converted into coloured substances such as biliverdin (green) and bilirubin (yellow). These colours are the successors to the initial blue and black of the bruise, and are the result of the body's action to restore normal blood circulation to the bruised area.
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There is no difference between the fossil forms dating back 150 million years and the present-day limuli. In addition to its shape, this true visitor from the past has two other very particular characteristics: its blood is blue (because it has a pigment other than haemoglobin) and it has three pairs of eyes, one of which, the lateral one, has an extraordinary similarity to the functioning of the human eye.
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