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What might be the advantage of the folds and coils of the small intestines?
slows down the passage of the food slomg the intestines, and afford an increased surface for absorption. Increase the surface area for the intestines to increase absorption of nutrients
What is the function of parathyroid hormone?
Parathyroid hormone helps regulate calcium levels in the body by increasing the amount of calcium in the blood. It does this by stimulating the release of calcium from bones, increasing the absorption of calcium from the intestines, and reducing the excretion of calcium by the kidneys.
Explain why the small intestines is so long relative to other organs in the body?
The small intestines are long (about 20 feet in adults) to maximize the surface area available for nutrient absorption. The increased length allows more time for the process of digestion and absorption to occur, leading to more efficient nutrient uptake. This is crucial for extracting essential nutrients from food in order to support the body's functions.
How is the small intestings adapted to increase absorption of food?
The cells that line small intestines have small projections on their surface called villi. These projections collectively increase the total surface area of the small intestine. This adaptation facilitates increased absorption of nutrients
The villi of the small intestine allow for an increase in the rate of?
absorption of nutrients by increasing the surface area available for absorption. This increased surface area allows for more efficient absorption of nutrients from the digested food passing through the small intestine.
Is increased peristalsis in intestines sympathetic?
parasympathetic
Which is greater when blood calcium levels when parathyroid hormone is increased or decreased?
Blood calcium levels are greater when parathyroid hormone is increased. Parathyroid hormone helps regulate calcium levels in the blood by promoting its release from bones and increasing its absorption from the intestines, leading to higher blood calcium levels.
How is the digestive surface of a frog increased?
The digestive surface of a frog is increased through the presence of villi in the small intestine. Villi are finger-like projections that line the inner surface of the intestine, increasing the surface area for absorption of nutrients. This allows for more efficient digestion and absorption of nutrients from the food the frog eats.
Which of the following is an effect of increasing the wavelength of an electromagnetic wave?
Increasing the wavelength of an electromagnetic wave will decrease its frequency and energy. This change can affect how the wave interacts with matter, such as increased penetration through obstacles or reduced absorption by certain materials.
What is the effect of pressure on absorption?
Increasing pressure can enhance the absorption process by forcing more gas molecules into the absorbing material. This is due to the increased concentration of gas molecules that can be dissolved or trapped in the absorbent. However, the effect of pressure on absorption efficiency can vary depending on the specific gas-liquid system and the absorbent material used.
How is the increased complexity of the earthworm's digestive system related to segmentation?
The earthworms digestive system is increased in complexity because of the earthworm's segmentation. On each stop or segmentation there is a sphincter and its own digestion going on.
What is the advantage of the increased surface area in the small intestine?
The increased surface area in the small intestine allows for more efficient absorption of nutrients from digested food. The folds, villi, and microvilli help to maximize the contact between food particles and the absorptive cells, leading to improved nutrient uptake.
