Explain the steps involved in the clotting process
What will be an ideal response?
First, the injured vessel constricts. Next, the platelets form a plug to seal the leak. Then the injured tissue and platelets release clotting factors. Clotting factors convert an inactive blood protein to prothrombin activator, which in turn converts prothrombin to thrombin. Then thrombin converts fibrinogen to fibrin. In the last step, the fibrin fibers form a network to trap red blood cells and platelets, causing a clot to form.
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Annelids must utilize ____ muscles in order to move
a. only circular b. only longitudinal c. crosswise d. circular and longitudinal e. crosswise or longitudinal
The DNA molecule is made up of _____ strand(s) and the RNA molecule is made up of _____ strand(s)
a. 1; 2 b. 2; 1 c. 4; 2 d. 1; 1 e. 2; 4
What is a segment of DNA that can use transposase to move from one place in the genome to another called?
A) regulatory region B) duplication C) translocation D) DNA transposition E) retrospection
A phosphoanhydride bond
A) is a high-energy bond. B) has a standard free energy of hydrolysis of ?7.3 kcal/mol. C) is broken by hydrolysis. D) links two phosphate groups. E) All of the above are correct.