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WorksheetsCarbohydrate Chemistry III & Digestion, Absorption (31.10.2025)
Total questions: 10
Worksheet time: 5mins
All are true about cellulose, except –
Dietary fibre
Polysaccharide
contains β-glycosidic linkage
well-digested by cellulase in humans
A 45-year-old morbidly obese woman has been attempting to lose weight using a low-carbohydrate diet. After 2 months of little success, she confesses to her son that she does add glucose to her coffee in the morning and after dinner but feels only some of this will be absorbed and should not be the cause of her limited success. Her son, a medical student states that glucose is almost completely absorbed from the gut. What type of transport does glucose utilise for gastrointestinal absorption?
Active - carrier-mediated, against the concentration gradient, energy-dependent
Facilitated - carrier-mediated, down the concentration gradient
Passive - down the concentration gradient
Active & Facilitated diffusion
Passive & Facilitated diffusion
Ib von Gierke disease is the defect in –
Glucose-6-phosphatase
Glucose-6-phosphate dehydrogenase
Endoplasmic reticulum Glucose-6-phosphate transporter
Glucose Transporter 2
Fanconi-Bickel syndrome is the defect in –
Glucose-6-phosphatase
Glucose-6-phosphate dehydrogenase
Endoplasmic reticulum Glucose-6-phosphate transporter
Glucose Transporter 2
Fructose is absorbed by –
GLUT 1
GLUT 2
GLUT 3
GLUT 5
All the sugars exit the intestinal cells via –
GLUT 1
GLUT 2
GLUT 3
GLUT 5
Most abundant glucose transporter in RBC, Brain, Placenta –
GLUT 1
GLUT 2
GLUT 3
GLUT 5
A 20-year-old college student complains of abdominal bloating, flatulence, and watery diarrhea every time he consumes milk or ice cream. Symptoms are relieved when he avoids dairy products. Which enzyme deficiency is most likely responsible for his symptoms?
a) Sucrase
b) Lactase
c) Maltase
d) Amylase
A 3-year-old child presents with coarse facial features, corneal clouding, hepatosplenomegaly, and developmental delay. Urine shows excess dermatan sulfate and heparan sulfate.
The most likely deficient enzyme is:
a) α-L-Iduronidase
b) Iduronate sulfatase
c) Arylsulfatase A
d) Hexosaminidase A
Which feature distinguishes Hunter’s disease from Hurler’s disease?
a) Hepatosplenomegaly
b) Skeletal deformities
c) Corneal clouding
d) Mental retardation
