Animal Nutrition

Why do the villi have long, finger like projections?

• to reduce the thickness of barrier for faster absorption

• to maintain concentration gradient across the intestinal wall

• to increase the thickness of barrier for faster absorption

• to increase the surface area to volume ratio for faster absorption

State the structure present on epithelial cells of the villi, which helps to further increase the surface area to volume ratio

Fatty acids and glycerol are absorbed by which process?

• active transport only

• active transport and diffusion

• diffusion only

• diffusion and osmosis

Which of the following is not an adaptation feature of the small intestine to suit its function for absorption?

• the small intestine is long and its inner wall is highly folded

• the folds have numerous villi

• walls of villi are only one cell thick

• the surface area is greatly reduced

What process will occur to undigested food if they do not get digested along the alimentary canal?

The digestion of fats occurs in the _____________.

• small intestine

• large intestine

• mouth

• stomach

The bile is made in....

• the pancreas

• the liver

• the stomach

• the small intestine

What is the primary function of the small intestine in animal nutrition?

• Absorption of nutrients

• Production of bile

• Storage of food

• Mechanical digestion

Which of the following nutrients is primarily absorbed in the large intestine?

• Proteins

• Carbohydrates

• Vitamins and minerals

• Fats

What role do enzymes play in the process of digestion?

• They slow down the digestion process

• They act as catalysts to speed up chemical reactions

• They provide energy for digestion

• They absorb nutrients