Question

1. Antibodies against both type A and type B red blood cell antigens are found in the plasma of a person whose blood is:
a)any of these types

b)type O

c)type A

d)type AB

e)type B

2.What plasma protein helps draw water from tissues into capillaries to maintain blood volume and pressure?

a)albumin

b)gamma globulins

c)fibrinogen

d)beta globulins

e)alpha globulins

3) Fibrinogen is to fibrin as
a)amino acids are to proteins

b)deoxyribonucleotides are to DNA

c)All of these choices

d)ribonucleotides are to RNA

4)Sympathetic neurons could
a)speed up the heart beat

b)slow down the heart beat

d)would have no effect on the heart beat

Answer 1

ANSWER :

1. The individuals with blood type "AB" has both the antigens 'A' and 'B' on the surface of red blood cells (RBCs) and have both A and B antibodies in their blood plasma. Hence option (d) is the correct answer choice.

2. The albumin are the major blood plasma proteins that primarily involve in the function to maintain plasma osmolarity and blood volume as well as pressure via regulating the draw of water between the tissues and capillaries. Hence option (a) is the correct answer choice.

3. Fibrinogen is a protein precursor composed of two fibrinopeptide which involved in the blood clotting (or hemostasis), when converted to its active form (fibrin protein) via the action of thrombin. Hence ribonucleiotides, deoxyribonucleotide, and amino acids all are changed into their corresponding polymer form of macromolecule. Therefore, option (c) is the correct answer choice.

4. The sympathetic neurons release catecholamines (epinephrine and norepinephrine), which primarily function to accelerate or increase the heart rate.