Exam 3 Nutri Sci/Biochem 510 PDF

# 1-30 (60 points total/ 2 points each question) Multiple Choice. There is one correct answer per question. Please circle the correct answer. 1. Which statement below best describes a zymogen? A. Zymogens are intestinal stem cells that differentiate into enterocytes @ Zymogens are inactive en...

# 1-30 (60 points total/ 2 points each question) Multiple Choice. There is one correct answer per question. Please circle the correct answer. 1. Which statement below best describes a zymogen? A. Zymogens are intestinal stem cells that differentiate into enterocytes @ Zymogens are inactive enzyme forms that are activated by proteolysis C. Zymogens are non-functional hormone peptides D. Zymogens are lipid enzymes that can act on diverse substrates E. Zymogens are a precursor of cholesterol that are converted into bile acids 2. Which gastrointestinal organ is responsible for mostly enzymatic breakdown of food? A. Oral Cavity 8. Esophagus C. Stomach @ Small Intestine E. Large Intestine 3. Which of the following carbohydrates is a Monosaccharide? A. Sucrose 8. Amylase C. Cellulose @Glucose E. Glycogen 4. Which intestinal carbohydrate enzyme is able to cleave a (1,6) glucose-glucose branches on amylopectin or glycogen? @ lsomaltase 8. Sucrase C. Pancreatic Amylase D. Lactase E. Pepsin 5. Lactose Intolerance is a common condition in certain populations that results in the inability to properly digest lactose. What are the carbohydrate constituents that are found within the disaccharide, lactose? A. Glucose-Glucose @ Galactose-Glucose C. Glucose-Fructose D. Fructose-Fructose E. Galactose-Galactose 6. Glucose is vital to human physiology and is maintained at a very specific concentration. What mechanism contributes to glucose uptake by intestinal enterocytes? A. Diffusion 8. Facilitated Diffusion @ Active transport D. Pinocytosis E. Phagocytosis 2