18 Questions
role of mucus in stomach
protect stomach lining
main fn of jejunum
absorb nutrients
What condition is characterized by an inability to digest gluten?
coeliac disease
Which of the following lifestyle choices can lead to bowel cancer?
D) Both B and C
What is the primary cause of diarrhea?
C) Infections or digestive disorders
What is the role of macrophages in the lymphatic system?
C) Phagocytizing pathogens and presenting antigens
How does the ileum differ from the jejunum in terms of function?
C) It absorbs vitamin B12 and bile salts
What is the primary function of pancreatic enzymes?
B) Digesting proteins, carbohydrates, and fats
What is the function of intestinal juice?
A) Digesting carbohydrates, proteins, and fats
What is the function of the liver in digestion?
D) All of the above
Describe the process of peristalsis and its importance in digestion.
Peristalsis is the process of wave-like muscle contractions that move food through the digestive tract. It is essential for pushing food from the esophagus to the stomach and through the intestines.
Explain how the structure of the small intestine maximizes nutrient absorption.
The small intestine has a highly folded inner surface with villi and microvilli that increase the surface area for nutrient absorption. This structure maximizes the efficiency of nutrient uptake.
What is chronic kidney disease and how does it affect the formation of urine?
Chronic kidney disease is a long-term condition where the kidneys lose function over time. It affects urine formation by reducing the kidneys' ability to filter waste from the blood, leading to decreased urine output and buildup of toxins in the body.
Physical digestion in the mouth involves chewing, which breaks down food into smaller pieces, increasing the surface area for enzymes. Chemical digestion begins with salivary amylase breaking down starches into sugars.
Describe how physical and chemical digestion work together in the mouth.
Explain the role of enzymes in the digestive process.
Enzymes are biological catalysts that speed up chemical reactions in the digestive process. They break down complex molecules like proteins, carbohydrates, and fats into simpler forms that can be absorbed by the body.
_______________ disease is caused by an immune reaction to eating gluten.
coeliac
_______________ are finger-like projections that increase the surface area of the small intestine for absorption.
villi
_______________ is the enzyme that breaks down starches in the mouth.
amylase
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