Animal Nutrition
Biology ⇒ Animal Biology
Animal Nutrition starts at 6 and continues till grade 12.
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See sample questions for grade 11
A dog consumes 100g of food containing 20g protein, 10g fat, and 30g carbohydrates. Calculate the total energy provided if protein and carbohydrates provide 4 kcal/g and fat provides 9 kcal/g.
Describe the function of villi in the small intestine.
Describe the role of bile in animal digestion.
Describe the role of symbiotic bacteria in the digestive systems of herbivores.
Describe the role of the pancreas in animal digestion.
Explain the difference between autotrophic and heterotrophic nutrition in animals.
Explain the difference between mechanical and chemical digestion.
Explain the importance of essential fatty acids in animal diets.
Explain why cellulose is difficult for most animals to digest.
Explain why ruminants can digest cellulose efficiently.
Explain why some animals practice coprophagy.
Name two functions of proteins in animal nutrition.
State one difference between intracellular and extracellular digestion.
Which enzyme is responsible for breaking down starch in the mouth?
A certain animal species lacks the enzyme lactase. Predict and explain the consequences of this deficiency on its nutrition if its diet contains lactose.
A researcher observes that a certain bird species has a highly developed gizzard but a relatively small stomach. Explain the functional significance of this adaptation in relation to its diet.
Calculate the nitrogen balance for an animal that consumes 50 g of protein per day and excretes 8 g of nitrogen per day in urine and feces. (Assume protein is 16% nitrogen by mass.)
Compare and contrast the digestive adaptations of carnivores and herbivores, focusing on their teeth and digestive tract structure.
Describe how the process of peristalsis contributes to animal nutrition.
Explain how the structure of the small intestine increases the efficiency of nutrient absorption in mammals.
