Which labs would indicate a client has systemic lupus erythematosus? Select all that apply.
Anti-nuclear antibodies
Hemoglobin and hematocrit (H&H)
Red blood cells
Platelets
Erythrocyte sedimentation rate
Anti-nuclear antibodies
Erythrocyte sedimentation rate
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You have isolated a previously unstudied protein, identified its complete structure in detail, and determined that it catalyzes the breakdown of a large substrate. You notice it has two binding sites
One of these is large, apparently the bonding site for the large substrate; the other is small, possibly a binding site for a regulatory molecule. What do these findings tell you about the mechanism of this protein? A) It is probably a structural protein that is involved in cell-to-cell adhesion. B) It is probably an enzyme that works through allosteric regulation. C) It is probably an enzyme that works through competitive inhibition. D) It is probably a cell membrane transport protein-like an ion channel. E) It is probably a structural protein found in cartilage or skeletal tissue.
The following factors may sometimes play a role in the movement of sap through xylem. Which one depends on the direct expenditure of ATP by the plant?
A) capillarity movement of water within the xylem B) evaporation of water from leaves C) cohesion among water molecules D) concentration of ions in the symplast E) bulk flow of water in the root apoplast
Which of the following is not a negative
impact of surface mining? a. Loss of vegetation. b. Contamination of waterways. c. Dust pollution of the air. d. Loss of soil. e. All of these are negative impacts of surface mining.
About what percentage of the human DNA codes for polypeptides?
a. 2% b. 5% c. 8% d. 50% e. 86%