Which statement below is false about the probability of the absorption of a weak base from thefollowing data? pka 4.5, stomach pH 2.5, small intestine pH 7.5.O the substance will be mostly ionized in stomachO the substance will be mostly non-ionized in the intestinethe substance can be absorbed both in stomach and small intestineO the ratio of ionized and non-ionized substance will not favor absorption in stomachthe ratio of ionized and non-ionized substance will favor absorption in intestine

Acid is a compound that donates proton and base is a compound that accepts proton. The strength of…

Answered: Which statement below is false about…

Biology: The Dynamic Science (MindTap Course List)

4th Edition

ISBN:9781305389892

Author:Peter J. Russell, Paul E. Hertz, Beverly McMillan

Publisher:Peter J. Russell, Paul E. Hertz, Beverly McMillan

Chapter3: Biological Molecules: The Carbon Compounds Of Life

Section: Chapter Questions

Problem 3ITD

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The pH of human stomach acid ranges from 1.0 to 3.0, whereas a healthy esophagus has a pH of approximately 7.0. In gastroesophageal reflux disease (GERD), often called acid reflux, stomach acid flows backward from the stomach into the esophagus. Repeated episodes in which esophageal pH goes below 4.0, considered clinical acid reflux, can result in bleeding ulcers and damage to the esophageal lining. The data in the Figure, from a patient with GERD, show esophageal pH during a sleeping reflux event. How many minutes does it take to go from the peak of the reflux event (when pH is most acidic) to when the reflux event is over? Source: Based on T. Demeester et al. 1976. Patterns of gastroesophageal reflux in health and disease. Annals of Surgery 184:459469.
Many children worldwide suffer from asevere deficiency of dietary protein. As aresult, they have very low levels of bloodalbumin. How do you think this affects thewater content and volume of their blood?Explain
Chemical X is a contaminant present in low quantities in drinking water. Its molecular size is about 80 nm and it may bind briefly with plasma albumin. Chemical X is a weak base with a pka of 5. Assuming the pH of the stomach is 1, the pH of the blood is 8, and the pH of the small intestine is 8.5, describe the absorption, distribution, biotransformation and excretion of Chemical X in a human.
Give only typing answer with explanation and conclusion If the pOH of the small intestine is 5.9, what is the [H+] concentration? Group of answer choices 1.3 x 10-6 M 7.9 x 10-9 M 0.771 M 7.9 x 10+9 M 0.908 M
Consider the decapeptide angiotensin I. Treatment of angiotensin I with ACE (the angiotensin-convertingenzyme) cleaves only the amide bond with the carbonyl group derivedfrom phenylalanine to afford two products. The larger polypeptide isangiotensin II, a hormone that narrows blood vessels and increasesblood pressure. Give the amino acid sequence of angiotensin II usingthree-letter abbreviations. ACE inhibitors are drugs that lower bloodpressure by inhibiting the ACE enzyme
A person consumes 100 micrograms of a tracer chemical. Assume that the person is able to collect allof the tracer in their urine (and therefore measure the amount that has come out of the body), as wellas the concentration in the blood, as a function of time (see table below).c is the value of V that you determined equal to the blood volume of the person? Does this makesense to you? If not, what does V represent?
How many kcal would a patient receive in a day if their enteral nutrition formula is RenalCal running at 40 mL/hr? Enter a whole number, do not enter units EN Product Кcal Protein /mL g/L General Formulations Jevity 1.5 1.5 63.4 Isosource VHN 1 62 TwoCal HN 2 83 Renal Formulations Nepro 1.8 81 Renalcal 2 34.4 Supplena 1.8 45 Glucose Control Formulations Glucerna 1 41 Choice DM 1 45
Acidification of the stomach uses all of the following types of transport EXCEPT: symporters O channels All of the other are used by the parietal cells antiporters O pumps
In general terms, explain the role in insects of the malpighian tubules and rectum in conserving water, ions, and amino acids and removing nitrogen waste.
A bull devours 5 kg DM of feed containing 60 g N/kg. The bull discharges 100 g N in the dung and 35 g N in the pee. The faecal and urinary N had 10 g metabolic faecal nitrogen (MFN) and 3 g endogenous urinary nitrogen (EUN) separately. Ascertain the BV of the protein in the eating routine.
The daily feed intake and fecal output for a group of goats fed legume hay was 780g and 90 g wet matter, respectively. The feed and feces had the following proximate composition: Water Organic Matter (g/kg) Crude Protein (Content g/kg DM) Crude Fiber Feed 88 887 130 260 Feces 650 840 98 440 Calculate the digestibility of the DM, OM, Ash, CP, CF, and NFE fraction ofthe diet. Assume on EE present.
A condition in which the body's water content has fallen to a low level is called * O diuretic O thirst O malnutrition O dehydration A food-borne illness most likely to be found in undercooked meat, especially hamburger, is * salmonellosis OOO

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