Question

1. what is the difference between a food and a nutrient? is bread a food or a nutrient? 3. how does a nutrient differ from a phytochemical or zoochemical?

Explanation:

For the first part, the definitions of food and nutrient are given based on nutritional science, and bread is classified as food. For the second part, the essential nature of nutrients is contrasted with the non - essential but potentially beneficial nature of phytochemicals and zoochemicals.

Answer:

1. A food is a substance consumed to provide nutritional support for the body. It is a complex mixture of various components. A nutrient is a substance that provides nourishment essential for the maintenance of life and for growth. Bread is a food. It is a complex mixture that contains various nutrients such as carbohydrates, proteins, fats, vitamins and minerals.
2. Nutrients are substances that are essential for the normal functioning, growth, development, and maintenance of the body. They include macronutrients (carbohydrates, proteins, fats) and micronutrients (vitamins and minerals). Phytochemicals are non - nutrient bioactive compounds found in plants that may have health - promoting effects, but are not considered essential for normal body functions in the same way as nutrients. Zoochemicals are bioactive compounds found in animal products. They also are not essential nutrients but may have beneficial effects on health.