What stomach secretion is necessary for normal hemoglobin production in RBCs?
A) pepsinogen
B) gastric lipase
C) intrinsic factor
D) HCl
C
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Micro-organisms that live within or on us normally are collectively called ________
A) Normal flora B) Cancer cells C) White blood cells D) Epithelial cells
Your doctor suggests that you increase your calcium intake to maintain your healthy bones. You do not understand why the doctor suggested this since you are a healthy 32-year-old. What was the doctor's reasoning?
A) The doctor is afraid that you will fall and break a bone. B) The increased calcium intake will then increase your vitamin D blood level. C) Calcium intake will increase the activity of osteoblasts, causing more bone to be formed. D) You are at an age where calcium levels in the bone may start to subside, producing weaker bones later in life. E) As you get older you are more prone to arthritis, and calcium reduces that problem.
________________________________________ describes the condition where one region of the cell has a different charge than an adjacent region
Fill in the blank(s) with correct word
____________________ are water channels in the tubular cells of the nephron
Fill in the blank(s) with correct word