Bio 252 Exam 3 Review Questions and Answers

Bio 252 Exam 3 Review Questions and Answers The _________ phase of gastric secretion is stimulated by food-related sensory input (smell, sight, taste, etc) A) Celiac B) Gastric C) Cephalic D) Intestinal E) Pancreatic - Ans:-C) Cephalic Which of the following stimulates parietal cells to increase HCl production? A) Pepsin B) Gastrin C) Intestinal gastrin ©GRACEAMELIA 2024/2025 ACADEMIC YEAR. ALL RIGHTS RESERVED FIRST PUBLISH OCTOBER 2024 Page 2/18 D) All of these E) B and C only - Ans:-E) B and C only On which of the following structures would you find brush border enzymes? A) Gastric rugae B) Circular folds C) Villi D) Microvilli E) None of the above - Ans:-D) Microvilli Absorption (at least some) occurs in all of the following except A) Mouth B) Stomach C) Duodenum D) Ileum E) Large intestine - Ans:-A) Mouth ©GRACEAMELIA 2024/2025 ACADEMIC YEAR. ALL RIGHTS RESERVED FIRST PUBLISH OCTOBER 2024 Page 3/18 In the porta hepatis, the _________ supplies the liver with _________ A) Hepatic vein; oxygen-poor venous blood B) Hepatic artery; oxygen-rich blood C) Hepatic portal vein; nutrient-rich blood from GI tract D) All of the above E) B and C only - Ans:-E) B and C only This component of bile allows it to emulsify fats: A) Bile salts B) pH C) Bilirubin D) Triglycerides E) It's yellow-green color - Ans:-B) pH Emulsification, mastication, and segmentation are all examples of what digestive process? A) Ingestion ©GRACEAMELIA 2024/2025 ACADEMIC YEAR. ALL RIGHTS RESERVED FIRST PUBLISH OCTOBER 2024 Page 4/18 B) Mechanical digestion C) Chemical digestion D) Propulsion E) Absorption - Ans:-B) Mechanical digestion Which of the following is secreted by the pancreas? A) Trypsin B) Procarboxypeptidase C) Chymotrypsin D) Carboxypeptidase E) Pepsin - Ans:-B) Procarboxypeptidase Digestion of carbohydrates begins in the _________ with _________ A) Duodenum; pancreatic amylase B) Stomach; pepsin C) Mouth; salivary amylase ©GRACEAMELIA 2024/2025 ACADEMIC YEAR. ALL RIGHTS RESERVED FIRST PUBLISH OCTOBER 2024 Page 5/18 D) Stomach; HCl E) Duodenum; pancreatic lipase - Ans:-C) Mouth; salivary amylase Which of the following is not an end-product of carbohydrate digestion? A) Glucose B) Amino acids C) Galactose D) Fructose E) All of these are end-products of carbohydrate digestion - Ans:-B) Amino acids All of the following are absorbed into intestinal cells via cotransport with sodium except: A) Glucose B) Fructose C) Galactose D) Amino acids - Ans:-B) Fructose Which of the following does not contribute to the chemical digestion of