2025 BIOD121 Essentials in Nutrition TEST
BANK EXAM MODULE 2
Description
Module 2 of BIOD121 focuses on digestive processes, nutrient absorption,
metabolism, enzymes, and energy balance. This exam is designed to test your
understanding of key concepts such as the digestive system pathway, mechanical
vs chemical digestion, gastrointestinal secretions, absorption of macronutrients,
metabolic pathways, ATP production, and basic nutritional biochemistry.
QUESTIONS
1. Which organ is the primary site for nutrient absorption?
A. Stomach
B. Small intestine
C. Large intestine
,2025 BIOD121 Essentials in Nutrition TEST
BANK EXAM MODULE 2
D. Esophagus
Answer: B – Most nutrients are absorbed through the villi and microvilli of the
small intestine.
2. Which process moves food through the digestive tract?
A. Filtration
B. Peristalsis
C. Emulsification
D. Segmentation
Answer: B – Peristalsis is rhythmic muscular contraction that pushes food
forward.
3. Which enzyme begins carbohydrate digestion?
A. Pepsin
B. Salivary amylase
,2025 BIOD121 Essentials in Nutrition TEST
BANK EXAM MODULE 2
C. Lipase
D. Trypsin
Answer: B – Amylase in saliva chemically digests starch.
4. Bile is responsible for:
A. Breaking proteins
B. Emulsifying fats
C. Digesting starch
D. Neutralizing acid
Answer: B – Bile breaks lipids into small droplets for easier enzyme action.
5. Which organ produces bile?
A. Pancreas
B. Liver
C. Gallbladder
, 2025 BIOD121 Essentials in Nutrition TEST
BANK EXAM MODULE 2
D. Duodenum
Answer: B – The liver creates bile; the gallbladder only stores it.
6. The stomach primarily digests:
A. Carbs
B. Proteins
C. Fats
D. Vitamins
Answer: B – Pepsin and acidic conditions break proteins into peptides.
7. What activates pepsin?
A. Bicarbonate
B. Hydrochloric acid
C. Bile
BANK EXAM MODULE 2
Description
Module 2 of BIOD121 focuses on digestive processes, nutrient absorption,
metabolism, enzymes, and energy balance. This exam is designed to test your
understanding of key concepts such as the digestive system pathway, mechanical
vs chemical digestion, gastrointestinal secretions, absorption of macronutrients,
metabolic pathways, ATP production, and basic nutritional biochemistry.
QUESTIONS
1. Which organ is the primary site for nutrient absorption?
A. Stomach
B. Small intestine
C. Large intestine
,2025 BIOD121 Essentials in Nutrition TEST
BANK EXAM MODULE 2
D. Esophagus
Answer: B – Most nutrients are absorbed through the villi and microvilli of the
small intestine.
2. Which process moves food through the digestive tract?
A. Filtration
B. Peristalsis
C. Emulsification
D. Segmentation
Answer: B – Peristalsis is rhythmic muscular contraction that pushes food
forward.
3. Which enzyme begins carbohydrate digestion?
A. Pepsin
B. Salivary amylase
,2025 BIOD121 Essentials in Nutrition TEST
BANK EXAM MODULE 2
C. Lipase
D. Trypsin
Answer: B – Amylase in saliva chemically digests starch.
4. Bile is responsible for:
A. Breaking proteins
B. Emulsifying fats
C. Digesting starch
D. Neutralizing acid
Answer: B – Bile breaks lipids into small droplets for easier enzyme action.
5. Which organ produces bile?
A. Pancreas
B. Liver
C. Gallbladder
, 2025 BIOD121 Essentials in Nutrition TEST
BANK EXAM MODULE 2
D. Duodenum
Answer: B – The liver creates bile; the gallbladder only stores it.
6. The stomach primarily digests:
A. Carbs
B. Proteins
C. Fats
D. Vitamins
Answer: B – Pepsin and acidic conditions break proteins into peptides.
7. What activates pepsin?
A. Bicarbonate
B. Hydrochloric acid
C. Bile
