Which of the following descriptions best matches the term colony stimulating factor?
A) adheres to collagen beneath endothelium
B) helper cells are one type
C) hormone that regulates white blood cell formation
D) kills bacteria using hydrogen peroxide
E) often elevated in allergic individuals
C
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Why must a normal body temperature be maintained in order for chemical reactions to be continued at life-sustaining rates?
What will be an ideal response?
The energy for cross bridge cycling during muscle contraction is provided by
a. acetylcholine. b. Ca2+. c. ATP. d. myosin. e. actin.
What is the most significant solute in determining the distribution of water among fluid compartments?
A. Pi B. Ca2+ C. K+ D. Cl- E. Na+
What protein is the most important buffer in erythrocytes?
A. Hemoglobin B. Fibrinogen C. Gamma globulin D. Myoglobin E. Albumin