Select that pair of substances from the following which is necessary for blood coagulation: (a) Heparin and calcium ion (b) Calcium ion and plaque factor (c) Oxalate and citrate (d... Select that pair of substances from the following which is necessary for blood coagulation: (a) Heparin and calcium ion (b) Calcium ion and plaque factor (c) Oxalate and citrate (d) Plaque factor and heparin. What is the normal systolic pressure (pulse pressure) of a human being: (a) 80 mm Hg (b) 120 mm Hg (c) 100 mm Hg (d) 150 mm Hg? Is it necessary to prevent blood clotting: (a) Sodium hydroxide (b) Sodium chloride (c) Sodium glycocholate (d) Sodium citrate?
Understand the Problem
The question is asking to identify which pair of substances is required for blood coagulation from the given options. It also includes a question about normal systolic pressure and another regarding substances necessary to prevent blood clotting.
Answer
Calcium ion and plaque factor; 120 mm Hg; Sodium citrate.
The pair of substances necessary for blood coagulation is calcium ion and plaque factor. The normal systolic pressure of a human being is 120 mm Hg. Sodium citrate is necessary to prevent blood clotting.
Answer for screen readers
The pair of substances necessary for blood coagulation is calcium ion and plaque factor. The normal systolic pressure of a human being is 120 mm Hg. Sodium citrate is necessary to prevent blood clotting.
More Information
Calcium ions are crucial for the coagulation cascade. The systolic blood pressure of 120 mm Hg is considered typical. Sodium citrate prevents coagulation by binding calcium ions, which are necessary for clotting.
Tips
Avoid confusing systolic pressure with diastolic pressure.
Sources
- The web page with info on - Calcium ions and platelet factors - toppr.com
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