1. The Juxamegular apparatus is responsible for a. Secretion of drugs b. Secreti
ID: 3482163 • Letter: 1
Question
1. The Juxamegular apparatus is responsible for
a. Secretion of drugs
b. Secretion acids & ammonia
c. Regulation of GFR
d. Reabsorption organic molecule & water
2. Tubular reabsorption ________.
A) includes substances such as creatinine
B) include active & passive processes
C) by passive processes requires ATP to move solutes from the interior of the tubule to the blood
D) is a way for the body to get rid of unwanted waste
E) None of the above
3.Substance larger than ___ are normally not allowed to pass through filt memb
A. Urea
B small prot
C. Glucose
D. Amino Acid
E. Sodium Ion
4. Which is greater?
A. Reabsorption of H2O in body is dehydrated
B. Reabsorption of H2O in body is hydrated
5. When concentration substances in tubule exceed tubular maximum ?
A. More substance filter
B. More substance reabsorb
C. More substance secreted
D. Amount substance exceed tubular max found urine
E. Both A + D
Explanation / Answer
Question 1
Answer is C that is Regulation of GFR.
juxtaglomerular apparatus are present nephrone and are formed by the distal convoluted tubule and the glomerular afferent arteriole.it consist of three types of cellsthat is macuala densa, juxtaglomerular cells and extraglomerular masangial cells. The are mainly involved in regulation of Glomerular Filtration rate. Especially macula densa cells.
Question 2.
Answer is B
that is reabsorption includes active and passive transport.
The reabsorption of filtered substances from tubular lumen to tubular cells and interstitial fluids occurs through two routes paracelluar route and transcellular route. The transportation through these routes indicates the Passive transport. Active transport occurs through Sodium potassium ATPase pump which is located on basolateral side of tubular cells.
Question 3
Answer is B
That is Small proteins. The filtration membrane will not allow the passage of plasma proteins. the filtration membrane is made up of three barriers, endothelial cell, the basal lamina, and a slit membrane formed by a
podocyte. the slit membrane the diameter smaller than 0.00- 0.007 µm. they allow the passage of glucose, vitamins, amino acids, urea and sodium ions.
Question 4
Answer is A
that is Reabsorption of H2O in body is dehydrated.
Dehydration indicates the lack body water. that indicates decreased body fluid volume. the decreased fluid volume activates the release of ADH. There by increases the reabsorption water from collecting tubules.
Question 5
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