BRS BIOCHEM EXAM QUESTIONS AND ANSWERS WITH
COMPLETE SOLUTIONS GRADED A++
Which condition can lead to life-threateningautodigestion of lipids and proteins?
Pancreatitis
A 38-year-old man gets bloated and has epi-sodes of diarrhea after eating his
favorite icecream. It also occurs when he consumes yogurt,cheese, and other
milk-containing products.The patient lacks the ability to cleave which oneof the
following glycosidic bonds
Galactose-b(1fi4) glucose
A child is brought to your clinic who appearsmalnourished. Obtaining a history is
difficultfrom the non-English-speaking parents. Youobtain basic blood work and
the following radi-ograph. Based on your observations and the ra-diograph, what
is the most likely diagnosis
Rickets
Which statement is true concerning the in-testinal brush border membrane
Fructose requires a sodium-independentmonosaccharide transporter.
A 31-year-old Asian woman presents with achief complaint of ''difficulty eating
dairy prod-ucts.'' The patient clarifies her symptoms andstates that she develops
bloating, abdominalpain, diarrhea, and excessive flatulence. Whichone of the
following statements is true aboutthis patient's condition
, She cannot obtain galactose and glucosefrom a disaccharide
A 55-year-old man has been attempting tolose weight using a low-carbohydrate
diet. After2 months of little success, he confides to his sonthat he adds sugar to
his coffee in the morningand after dinner. He tells him that only some ofthe sugar
will be absorbed and should not bethe cause of his limited success. The son,
amedical student, states that glucose is almostcompletely absorbed from the gut.
What type transport mechanism does glucose utilize for gastrointestinal
absorption?
Active and facilitate
A 63-year-old man presents to the emer-gency room with lower gastrointestinal
bleed-ing, bloating, and cramping. He states that thishas happened before and
resolves in a day ortwo. On examination, he has a low-grade fever,left lower
quadrant tenderness to palpation,and guaiac-positive stools. Blood work
revealsleukocytosis and a normal hematocrit. A com-puted tomography scan is
ordered with oraland intravenous contrast and reveals numerousout-pouchings
in his distal colon. Which of thefollowing is true about this condition
Polysaccharides rich inb1,4bonds of cellu-lose are a mainstay of treatment
As an experiment, a high school professorconvinces each of his students to put a
sodacracker in their mouth and not swallow it. Afterseveral minutes, some of the
students report asweet taste. Which of the following enzymes isresponsible for
this phenomenon?
Amylase
COMPLETE SOLUTIONS GRADED A++
Which condition can lead to life-threateningautodigestion of lipids and proteins?
Pancreatitis
A 38-year-old man gets bloated and has epi-sodes of diarrhea after eating his
favorite icecream. It also occurs when he consumes yogurt,cheese, and other
milk-containing products.The patient lacks the ability to cleave which oneof the
following glycosidic bonds
Galactose-b(1fi4) glucose
A child is brought to your clinic who appearsmalnourished. Obtaining a history is
difficultfrom the non-English-speaking parents. Youobtain basic blood work and
the following radi-ograph. Based on your observations and the ra-diograph, what
is the most likely diagnosis
Rickets
Which statement is true concerning the in-testinal brush border membrane
Fructose requires a sodium-independentmonosaccharide transporter.
A 31-year-old Asian woman presents with achief complaint of ''difficulty eating
dairy prod-ucts.'' The patient clarifies her symptoms andstates that she develops
bloating, abdominalpain, diarrhea, and excessive flatulence. Whichone of the
following statements is true aboutthis patient's condition
, She cannot obtain galactose and glucosefrom a disaccharide
A 55-year-old man has been attempting tolose weight using a low-carbohydrate
diet. After2 months of little success, he confides to his sonthat he adds sugar to
his coffee in the morningand after dinner. He tells him that only some ofthe sugar
will be absorbed and should not bethe cause of his limited success. The son,
amedical student, states that glucose is almostcompletely absorbed from the gut.
What type transport mechanism does glucose utilize for gastrointestinal
absorption?
Active and facilitate
A 63-year-old man presents to the emer-gency room with lower gastrointestinal
bleed-ing, bloating, and cramping. He states that thishas happened before and
resolves in a day ortwo. On examination, he has a low-grade fever,left lower
quadrant tenderness to palpation,and guaiac-positive stools. Blood work
revealsleukocytosis and a normal hematocrit. A com-puted tomography scan is
ordered with oraland intravenous contrast and reveals numerousout-pouchings
in his distal colon. Which of thefollowing is true about this condition
Polysaccharides rich inb1,4bonds of cellu-lose are a mainstay of treatment
As an experiment, a high school professorconvinces each of his students to put a
sodacracker in their mouth and not swallow it. Afterseveral minutes, some of the
students report asweet taste. Which of the following enzymes isresponsible for
this phenomenon?
Amylase
