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Read the following statements and select the correct option.
Statement 1 : The human small intestine is the longest portion in the alimentary canal.
Statement 2 : Absorption of digested food requires a very large surface area.
Statement 1 : The human small intestine is the longest portion in the alimentary canal.
Statement 2 : Absorption of digested food requires a very large surface area.
- a)Both statements 1 and 2 are correct.
- b)Statement 1 is correct but statement 2 is incorrect.
- c)Statement 1 is incorrect but Statement 2 is correct.
- d)Both statements 1 and 2 are incorrect.
Correct answer is option 'A'. Can you explain this answer?
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Read the following statements and select the correct option.Statement ...
Statement 1: The human small intestine is the longest portion in the alimentary canal.
Statement 2: Absorption of digested food requires a very large surface area.
Explanation:
Statement 1: The human small intestine is the longest portion in the alimentary canal.
The alimentary canal, also known as the digestive tract, is a long tube that extends from the mouth to the anus and is responsible for the digestion and absorption of food. It consists of several parts, including the mouth, esophagus, stomach, small intestine, and large intestine.
The small intestine is the longest portion of the alimentary canal, measuring about 6 meters (20 feet) in length in adults. It is divided into three sections: the duodenum, jejunum, and ileum. The small intestine plays a crucial role in the digestion and absorption of nutrients from the food we eat.
Statement 2: Absorption of digested food requires a very large surface area.
Absorption is the process by which digested food molecules are transported from the lumen of the intestine into the bloodstream or lymphatic system for distribution to the cells in the body. The small intestine is specialized for absorption due to its large surface area.
The inner lining of the small intestine has numerous finger-like projections called villi, which increase the surface area available for absorption. Each villus is covered with even smaller finger-like projections called microvilli, further increasing the surface area. This extensive surface area allows for efficient absorption of nutrients such as carbohydrates, proteins, fats, vitamins, and minerals.
The small intestine also contains specialized cells called enterocytes, which line the surface of the villi and are responsible for the absorption of nutrients. These cells have microvilli on their surface, known as the brush border, which further increases the surface area available for absorption.
In conclusion, both statements 1 and 2 are correct. The human small intestine is indeed the longest portion in the alimentary canal, and the absorption of digested food does require a very large surface area, which is provided by the villi and microvilli in the small intestine.
Statement 2: Absorption of digested food requires a very large surface area.
Explanation:
Statement 1: The human small intestine is the longest portion in the alimentary canal.
The alimentary canal, also known as the digestive tract, is a long tube that extends from the mouth to the anus and is responsible for the digestion and absorption of food. It consists of several parts, including the mouth, esophagus, stomach, small intestine, and large intestine.
The small intestine is the longest portion of the alimentary canal, measuring about 6 meters (20 feet) in length in adults. It is divided into three sections: the duodenum, jejunum, and ileum. The small intestine plays a crucial role in the digestion and absorption of nutrients from the food we eat.
Statement 2: Absorption of digested food requires a very large surface area.
Absorption is the process by which digested food molecules are transported from the lumen of the intestine into the bloodstream or lymphatic system for distribution to the cells in the body. The small intestine is specialized for absorption due to its large surface area.
The inner lining of the small intestine has numerous finger-like projections called villi, which increase the surface area available for absorption. Each villus is covered with even smaller finger-like projections called microvilli, further increasing the surface area. This extensive surface area allows for efficient absorption of nutrients such as carbohydrates, proteins, fats, vitamins, and minerals.
The small intestine also contains specialized cells called enterocytes, which line the surface of the villi and are responsible for the absorption of nutrients. These cells have microvilli on their surface, known as the brush border, which further increases the surface area available for absorption.
In conclusion, both statements 1 and 2 are correct. The human small intestine is indeed the longest portion in the alimentary canal, and the absorption of digested food does require a very large surface area, which is provided by the villi and microvilli in the small intestine.
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Read the following statements and select the correct option.Statement ...
The correct answer is (a).
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Read the following statements and select the correct option.Statement 1 : The human small intestine is the longest portion in the alimentary canal.Statement 2 : Absorption of digested food requires a very large surface area.a)Both statements 1 and 2 are correct.b)Statement 1 is correct but statement 2 is incorrect.c)Statement 1 is incorrect but Statement 2 is correct.d)Both statements 1 and 2 are incorrect.Correct answer is option 'A'. Can you explain this answer?
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