$A$ : In acute constipation,purgatives containing magnesium salts are generally used.
$R$ : The osmotic effect of $Mg^{2+}$ in the intestinal lumen prevents water reabsorption from the intestine. $Mg^{2+}$ increases the solute concentration in the intestinal lumen because $Mg^{2+}$ is absorbed very slowly.
$R$ : The osmotic effect of $Mg^{2+}$ in the intestinal lumen prevents water reabsorption from the intestine. $Mg^{2+}$ increases the solute concentration in the intestinal lumen because $Mg^{2+}$ is absorbed very slowly.
- AAssertion and Reason both are correct and Reason is the correct explanation of Assertion.
- BAssertion and Reason both are correct but Reason is not the correct explanation of Assertion.
- CAssertion is correct,but Reason is incorrect.
- DBoth Assertion and Reason are incorrect.
Explore More
Similar Questions
In which of the following diseases is the liver affected,and the skin and eyes turn yellow due to the deposition of bile pigments?
Easy
View SolutionWhich diagnostic tool is best for detecting stomach ulcers?
Medium
View SolutionProlonged constipation may cause:
Medium
View SolutionMatch the disease in Column-$I$ with their causes in Column-$II$. Select the correct option from the choices given below.
Column-$I$ Column-$II$ $a$. Marasmus $i$. Eating spicy oily food $b$. Indigestion $ii$. Protein deficiency disorder $c$. Kwashiorkor $iii$. Abnormal bilirubin metabolism $d$. Jaundice $iv$. Prolonged protein malnutrition
| Column-$I$ | Column-$II$ |
| $a$. Marasmus | $i$. Eating spicy oily food |
| $b$. Indigestion | $ii$. Protein deficiency disorder |
| $c$. Kwashiorkor | $iii$. Abnormal bilirubin metabolism |
| $d$. Jaundice | $iv$. Prolonged protein malnutrition |
Given below are two statements.
Statement $I$: Defecation is an involuntary process that takes place through the anal opening guarded by sphincter muscles.
Statement $II$: Distension of the rectum stimulates pressure-sensitive receptors that initiate a neural reflex for egestion.
In light of the above statements,select the correct answer from the options given below.
Statement $I$: Defecation is an involuntary process that takes place through the anal opening guarded by sphincter muscles.
Statement $II$: Distension of the rectum stimulates pressure-sensitive receptors that initiate a neural reflex for egestion.
In light of the above statements,select the correct answer from the options given below.
Vedclass Products
For Students
Vedclass Test Series
Mock tests in real JEE/NEET style with performance analysis. 5-day free trial.
Start Free TrialFor Teachers
Exam Paper Generator
Generate Set A/B/C/D exam papers from 7.5L+ questions in 2 minutes. 3 chapters free.
Try FreeFor Institutes
Online Exam Module
Live online exams with unlimited students, 360° analytics & white-label branding.
See Demo