AP (Advanced Placement) Biology: Questions 510 - 512 of 902

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Question 510

Question

MCQ▾

Which of the following is/are associated with thermoregulation?

Choices

Choice (5)Response

a.

Meissner corpuscles

b.

Arrector pili

c.

Fingernails and toenails

d.

Apocrine glands

e.

Sebaceous glands

Question 511

Question

MCQ▾

Which of the following statement distinguishes plasma from serum?

Choices

Choice (5)Response

a.

Plasma is the same thing as whole blood, whereas serum lacks the cellular components.

b.

Serum has a higher concentration of proteins than plasma.

c.

Plasma contains a higher percentage of immunolglobulins than serum.

d.

Plasma contains antibodies and antigens, serum contains only α and β globulins.

e.

Serum is the same thing as plasma but lacks clotting proteins.

Question 512

Question

MCQ▾

Which of the following is the correct sequence of events that occurs during blood clotting?

Choices

Choice (5)Response

a.

Fibrin produces thrombin thrombin produces prothrombin prothrombin produces prothrombin activator prothrombin activator plus calcium produces clot

b.

Prothrombin activator produces Thromboplastin calcium binds prothrombin activator thrombin produces fibrin fibrin produces clot

c.

Thrombin produces fibrinogen fibrinogen produces prothrombin activator prothrombin activator produces clot

d.

Calcium binds prothrombin activator prothrombin activator produces thrombin thrombin produces fibrin fibrin produces clot

e.

Thrombin produces fibrinogen fibrinogen produces prothrombin prothrombin produces prothrombin activator prothrombin activator plus calcium produces clot

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