Answer:
The missing options are:
a. "It's due to insufficient production of vitamin B12 in the colon."
b. "Increased production of intrinsic factor in the stomach leads to this type of anemia."
c. "Overproduction of vitamin B12 in the large intestine can result in pernicious anemia."
d. "Decreased production of intrinsic factor by the stomach affects the absorption of vitamin B12 in the small intestine."
The correct answer is d. "Decreased production of intrinsic factor by the stomach affects the absorption of vitamin B12 in the small intestine."
Explanation:
Intrinsic factor is a protein that is produced by cells in the stomach, this protein is essential for the absorption of vitamin B12 in the small intestine. Without intrinsic factor, the absorption of vitamin B12 would be really low, causing pernicious anemia since vitamin B12 is necessary for the production of healthy red blood cells. If there is not a good production of healthy red blood cells that can distribute O₂ and CO₂, the body suffers from pernicious anemia.
Answer: True.
Explanation:
One is a ligand binding site and the other is a DNA binding site.
<u>As filtrate moves down the loop of henle, the surrounding interstitial </u><u>fluid </u><u>becomes </u><u>more </u><u>concentrated than the filtrate, so </u><u>water</u><u> leaves the filtrate.</u>
What is the movement of substances from the blood into the proximal tubule?
- In the urine of experimental rodents and humans (eating a Western-style diet), urea is the most prevalent solute.
- In comparison to plasma and extracellular fluids, it is significantly more concentrated in urine.
Which part of the tubule is permeable to water only under the influence of ADH?
- ADH operates on the distal tubules and collecting ducts, increasing their water permeability to counterbalance that shift.
- Reabsorbing water as a result lowers blood osmolarity, concentrates urine, and decreases urine volume.
What does white cells in urine mean?
- If your doctor performs a urine test and discovers an excessive number of leukocytes, this may indicate an infection.
- White blood cells called leukocytes assist your body in battling pathogens.
- It's frequently a symptom of a problem somewhere in your urinary tract when you have more of them than usual in your urine.
Learn more about fluids
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Explanation:
For this course you should MEMORIZE THREE STANDARD NERNST POTENTIALS: Nernst potential for Na+ = +55mV, Nernst potential for Cl- = -65mV, Nernst potential for K+ = -90mV. (The Nernst potential is the voltage which would balance out the unequal concentration across the membrane for that ion.
