digestion and absorption neet questions

Digestion and Absorption Neet Questions 2024


Digestion and absorption Neet Question / Answers

1.What is the primary function of the digestive system in the human body?
2.Name the main digestive enzyme responsible for breaking down carbohydrates.
3.In which part of the digestive system does protein digestion primarily occur?
4.Explain the role of bile in the digestion of fats.
5.Which enzyme is responsible for the breakdown of lipids into fatty acids and glycerol?
6.Define peristalsis and its significance in the digestive process.
7.What is the function of mucus in the digestive tract?
8.Name the primary site of nutrient absorption in the digestive system.
9.Explain the structural adaptations of the small intestine that enhance nutrient absorption.
10.Why is the surface area of the small intestine crucial for efficient absorption?
11.Describe the role of pancreatic juice in digestion.
12.How does the absorption of water occur in the digestive system?
13.Differentiate between mechanical and chemical digestion.
14.Why is the stomach considered a temporary storage site in the digestive system?
15.Name the hormone responsible for stimulating the release of gastric juices in the stomach.
16.What is the significance of the hepatic portal system in nutrient absorption?
17.Explain how the colon is involved in the formation of feces.
18.Discuss the role of the gallbladder in the digestion of fats.
19.How does the large intestine contribute to the absorption of nutrients?
20.Describe the process of nutrient transport from the small intestine to the bloodstream.
21.What is the function of lacteals in the small intestine?
22.How does the pH level change along the digestive tract, and why is it important?
23.Discuss the role of brush border enzymes in nutrient digestion.
24.Explain the concept of nutrient specificity in absorption.
25.Why is it important for the digestive system to maintain a balance between absorption and excretion?
26.Describe the effects of malnutrition on the digestive system.
27.How does the presence of fiber in the diet influence digestion?
28.Discuss the role of probiotics in maintaining digestive health.
29.What is the importance of the enteric nervous system in digestion?
30.Explain how the digestive system adapts to different types of diets.

Answers for Digestion And Absorption Neet Questions

The primary function of the digestive system is to break down food into nutrients that the body can absorb and utilize for energy, growth, and repair.

The main digestive enzyme responsible for breaking down carbohydrates is amylase.

Protein digestion primarily occurs in the stomach, where pepsin breaks down proteins into smaller peptides.

Bile emulsifies fats, breaking them into smaller droplets to increase the surface area for enzymatic digestion.

Lipids are broken down into fatty acids and glycerol by the enzyme lipase.

Peristalsis is the rhythmic contraction and relaxation of muscles in the digestive tract, facilitating the movement of food through the system.

Mucus in the digestive tract lubricates and protects the lining, preventing damage from acidic digestive juices.

The small intestine is the primary site of nutrient absorption in the digestive system.

The small intestine has structural adaptations such as villi and microvilli that increase its surface area for efficient nutrient absorption.

The large surface area of the small intestine enhances nutrient absorption by providing more contact points for nutrients to be absorbed into the bloodstream.

Pancreatic juice contains enzymes like amylase, lipase, and protease, aiding in the digestion of carbohydrates, fats, and proteins.

The absorption of water occurs in the large intestine through active and passive transport mechanisms.

Mechanical digestion involves the physical breakdown of food, while chemical digestion involves the breakdown of complex molecules into simpler ones by enzymes.

The stomach acts as a temporary storage site for food before it is gradually released into the small intestine for further digestion.

Gastrin is the hormone responsible for stimulating the release of gastric juices in the stomach.

The hepatic portal system transports absorbed nutrients from the small intestine to the liver for processing before entering the general circulation.

The colon is involved in the formation of feces by absorbing water and electrolytes from the indigestible remains of food.

The gallbladder stores bile, releasing it into the small intestine to aid in the digestion of fats.

The large intestine contributes to nutrient absorption by absorbing water, electrolytes, and some vitamins.

Nutrient transport from the small intestine to the bloodstream occurs through active transport, facilitated diffusion, and bulk flow.

Lacteals are lymphatic vessels in the small intestine responsible for absorbing dietary fats.

The pH level becomes more acidic in the stomach due to the presence of gastric acid, aiding in protein digestion. It then becomes more alkaline in the small intestine to facilitate enzymatic activity.

Brush border enzymes, such as lactase and sucrase, are located on the microvilli of the small intestine and aid in the final stages of nutrient digestion.

Nutrient specificity in absorption refers to the selective absorption of specific nutrients based on their chemical properties and transport mechanisms.

The balance between absorption and excretion ensures that the body receives essential nutrients while eliminating waste products.

Malnutrition can lead to deficiencies in essential nutrients, affecting the digestive system’s function and overall health.

Fiber in the diet aids digestion by promoting regular bowel movements and preventing constipation.

Probiotics are beneficial bacteria that support digestive health by maintaining a balanced microbial environment in the gut.

The enteric nervous system regulates digestive processes, including peristalsis and enzyme secretion, independently of the central nervous system.

The digestive system adapts to different diets by adjusting enzyme production, absorption rates, and other processes to meet the body’s nutritional needs. Go To home Page

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