2025 BIOD121 Essentials in Nutrition TEST
BANK EXAM MODULE 5
Description:
Module 5 focuses on how the digestive system processes food, how nutrients are
absorbed, and how the body regulates metabolism and energy balance. You will
explore enzymes, hormones involved in digestion, macronutrient metabolism, ATP
production, and nutritional concepts like RDA, calories, and metabolism pathways.
Topics: Digestive System Function, Metabolism, Energy Balance & Nutrition
QUESTIONS
1. Which structure is the primary site of nutrient absorption?
A. Stomach
B. Small intestine
C. Large intestine
D. Esophagus
Answer: B
Explanation:
,2025 BIOD121 Essentials in Nutrition TEST
BANK EXAM MODULE 5
The small intestine—specifically the jejunum—absorbs most nutrients through
villi and microvilli.
2. Bile is produced by the:
A. Pancreas
B. Gallbladder
C. Liver
D. Stomach
Answer: C
Explanation:
The liver produces bile, while the gallbladder only stores and concentrates it.
3. Which nutrient begins digestion in the mouth?
A. Lipids
B. Proteins
C. Carbohydrates
,2025 BIOD121 Essentials in Nutrition TEST
BANK EXAM MODULE 5
D. Vitamins
Answer: C
Explanation:
Salivary amylase initiates carbohydrate breakdown in the oral cavity.
4. The primary function of the large intestine is:
A. Protein digestion
B. Water absorption
C. Emulsification
D. Storing bile
Answer: B
Explanation:
The large intestine absorbs water, electrolytes, and forms feces.
5. Which hormone stimulates the release of bile into the small intestine?
, 2025 BIOD121 Essentials in Nutrition TEST
BANK EXAM MODULE 5
A. Gastrin
B. Secretin
C. CCK
D. Ghrelin
Answer: C
Explanation:
Cholecystokinin (CCK) triggers gallbladder contraction to release bile.
6. Which enzyme digests fats?
A. Pepsin
B. Amylase
C. Lipase
D. Trypsin
Answer: C
Explanation:
Lipase breaks triglycerides into fatty acids and glycerol.
BANK EXAM MODULE 5
Description:
Module 5 focuses on how the digestive system processes food, how nutrients are
absorbed, and how the body regulates metabolism and energy balance. You will
explore enzymes, hormones involved in digestion, macronutrient metabolism, ATP
production, and nutritional concepts like RDA, calories, and metabolism pathways.
Topics: Digestive System Function, Metabolism, Energy Balance & Nutrition
QUESTIONS
1. Which structure is the primary site of nutrient absorption?
A. Stomach
B. Small intestine
C. Large intestine
D. Esophagus
Answer: B
Explanation:
,2025 BIOD121 Essentials in Nutrition TEST
BANK EXAM MODULE 5
The small intestine—specifically the jejunum—absorbs most nutrients through
villi and microvilli.
2. Bile is produced by the:
A. Pancreas
B. Gallbladder
C. Liver
D. Stomach
Answer: C
Explanation:
The liver produces bile, while the gallbladder only stores and concentrates it.
3. Which nutrient begins digestion in the mouth?
A. Lipids
B. Proteins
C. Carbohydrates
,2025 BIOD121 Essentials in Nutrition TEST
BANK EXAM MODULE 5
D. Vitamins
Answer: C
Explanation:
Salivary amylase initiates carbohydrate breakdown in the oral cavity.
4. The primary function of the large intestine is:
A. Protein digestion
B. Water absorption
C. Emulsification
D. Storing bile
Answer: B
Explanation:
The large intestine absorbs water, electrolytes, and forms feces.
5. Which hormone stimulates the release of bile into the small intestine?
, 2025 BIOD121 Essentials in Nutrition TEST
BANK EXAM MODULE 5
A. Gastrin
B. Secretin
C. CCK
D. Ghrelin
Answer: C
Explanation:
Cholecystokinin (CCK) triggers gallbladder contraction to release bile.
6. Which enzyme digests fats?
A. Pepsin
B. Amylase
C. Lipase
D. Trypsin
Answer: C
Explanation:
Lipase breaks triglycerides into fatty acids and glycerol.
