1. explain the difference between a micro- and macronutrient.

Brief Explanations:

The primary difference between macronutrients and micronutrients lies in the quantity required by the body and their physiological functions. Macronutrients are required in large amounts (grams) daily because they provide the energy (calories) necessary for metabolic processes and serve as the building blocks for body tissues. Micronutrients are required in much smaller amounts (milligrams or micrograms) and do not provide energy directly; instead, they act as essential cofactors for enzymes and support various biochemical reactions, immune function, and bone health.

Answer:

Macronutrients (carbohydrates, proteins, and fats) are substances required in large amounts that provide energy and structural components for the body. Micronutrients (vitamins and minerals) are substances required in trace amounts that are essential for regulating metabolism and maintaining cellular function.