A late step in the clotting of blood is the conversion of soluble fibrinogen to insoluble fibrin - VCE - SSCE Biology - Question 5 - 2011 - Paper 1
Question 5
A late step in the clotting of blood is the conversion of soluble fibrinogen to insoluble fibrin. Examine the following diagram.
It is reasonable to conclude that f... show full transcript
Worked Solution & Example Answer:A late step in the clotting of blood is the conversion of soluble fibrinogen to insoluble fibrin - VCE - SSCE Biology - Question 5 - 2011 - Paper 1
Step 1
A. P
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Answer
In sample P, the clot has formed, indicating that fibrinogen has been converted to insoluble fibrin, which is a necessary component of the clot.
Step 2
B. Q
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Answer
Sample Q contains the clot, which is made up of fibrin. Therefore, fibrin is also present in Q.
Step 3
C. R
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Sample R has an anti-clotting factor, which inhibits the conversion of fibrinogen to fibrin. Hence, fibrin is not present in R.
Step 4
D. S
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Sample S is clear plasma derived from centrifuging the blood. It generally does not contain fibrin as that would have been removed with the solid clot.
