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Chapter 25: Problem 69

An omnivore comes across potatoes, avocados, kale, and eggs and craves only the eggs. In what nutrient is the animal likely deficient? a. carbohydrates b. protein c. fiber d. fatty acids

Short Answer

Expert verified
b. protein

Step by step solution

01

- Identify the Types of Nutrients

Review the nutrients provided by each of the foods: potatoes (carbohydrates), avocados (fatty acids), kale (fiber), and eggs (protein).
02

- Analyze the Animal's Craving

The animal craves only eggs among the given options.
03

- Determine the Primary Nutrient in Eggs

Eggs are a rich source of protein.
04

- Conclude the Likely Deficiency

Since the animal craves eggs 鈥� which are high in protein 鈥� it is likely deficient in protein.

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Key Concepts

These are the key concepts you need to understand to accurately answer the question.

protein deficiency
Protein deficiency occurs when an organism does not get enough protein from its diet. Proteins are important building blocks for muscles, skin, enzymes, and other vital functions.
When deficient, an organism may experience:
  • muscle wasting
  • weakened immune function
  • fatigue and weakness
  • cravings for protein-rich foods like eggs
In the given exercise, the craving for eggs, a high-protein food, suggests a likely protein deficiency.
animal nutrition
Animal nutrition is the study of dietary needs of animals to maintain overall health and proper function. Nutrition must include:
  • proteins
  • carbohydrates
  • fats
  • vitamins
  • minerals
Each of these plays a unique role in maintaining the animal's health. For example, proteins are essential for tissue growth and repair. Consuming a balanced diet ensures that animals receive all necessary nutrients. In the exercise, understanding what each food offers helps identify nutrient deficiencies in animals.
dietary cravings
Dietary cravings can be a sign that an animal or human is deficient in a particular nutrient. Cravings guide animals to seek specific foods that provide the nutrients they lack. Common triggers include:
  • energy needs
  • nutrient imbalances
  • specific deficiencies (e.g., protein, vitamins)

    • For example, a craving for eggs suggests seeking high-protein foods. Understanding cravings helps in diagnosing dietary deficiencies and adjusting diets accordingly.
nutrient sources
Nutrient sources are the foods or substances from which animals derive their essential nutrients. Different foods provide different nutrients, such as:
  • Carbohydrates from potatoes
  • Fatty acids from avocados
  • Fiber from kale
  • Proteins from eggs
Each nutrient has a role, like proteins for muscle building. By analyzing what foods an organism craves, we can infer what nutrient they might be lacking. This helps in creating balanced diets.

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Most popular questions from this chapter

An experiment to measure the rate of respiration in mice at \(10^{\circ} C\) and \(25^{\circ} \mathrm{C}\) was performed using a respirometer, an apparatus that measures changes in gas volume. Respiration was measured in mL of \(O_{2}\) consumed per gram of organism over several five-minute trials, and the following data were obtained. $$\begin{array}{|c|c|}\hline \text { Organism } & {\text { Temperature \(\left(^{\circ} \mathrm{C}\right)\) }} & {\text { Average respiration \(\left(\mathrm{mL} 0_{2} / \mathrm{g} / \mathrm{min}\right)\) }} \\ \hline \text { Mouse } & {10} & {0.0518} \\ \hline \text { Mouse } & {25} & {0.0321} \\\ \hline\end{array}$$ According to these data, mice at 10掳C demonstratedgreater oxygen consumption per gram of tissue than mice at \(25^{\circ} C.\) Which of the following statements best explains the observation? a. The mice at 10掳C had a higher rate of ATP production than the mice at 25掳C. b. The mice at 10掳C had a lower metabolic rate than the mice at 25掳C. c. The mice at 25掳C weighed less than the mice at 10掳C. d. The mice at 25掳C were more active than the mice at 10掳C.

Carbohydrates often get a bad reputation for their role in promoting weight gain when consumed in excess. However, carbohydrates are necessary for biological functions. Why is it important to consume carbohydrates? a. Carbohydrates are broken down into glucose, which provides energy as ATP through metabolic pathways. ATP helps to maintain connective tissue. b. Carbohydrates are broken down into glucose, which is essential for blood clotting. c. Carbohydrates, along with proteins, help maintain connective tissue and are essential to blood clotting. d. Carbohydrates are broken down into glucose, which provides energy as ATP through metabolic pathways. ATP is required for proper cellular function.

Different macro molecules have varying amounts of energy density. Which of the following is the least energy dense? a. protein b. fat c. fiber d. carbohydrates

The ruminant digestive system has evolved several differences from the traditional mammalian monogastric digestive system because they consume large amounts of plant material. Which of the following is NOT a component of the ruminant digestive system that has evolved to more efficiently digest plant fibers? a. omasum b. abomasum c. reticulum d. gizzard

Celiac disease is dangerous in affected individuals, because ingesting gluten damages the villi of the small intestines. Why is this potentially life threatening? a. The villi aid in mechanical digestion of food particles. When they are damaged, nutrients cannot be digested properly in the body. b. Villi increase the surface area of the small intestine, which aids in the absorption of bile salts. This nutrient cannot be absorbed when they are damaged. c. Villi decrease the surface area of the small intestine available for absorption. Nutrients cannot properly enter the bloodstream when they are damaged. d. Villi increase the surface area available for nutrient absorption. When villi are damaged, nutrients cannot properly enter the bloodstream.
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