Chapter 1 Flashcards
(20 cards)
an essential nutrient is
one that
must be supplied by the diet, because your body simply cannot synthesize it.
The essential nutrients that you will learn
about can be split into two major groups
the macronutrients and the micronutrients
macronutrients are
essential nutrients that we require in very large amounts
micronutrients are
essential nutrients that we require in far much smaller amounts
distinguishing feature between micronutrients and macronutrients:
macronutrients are energy yielding nutrients
macronutrients include (3):
(1) Carbohydrates
(2) Lipids
(3) Proteins
do micronutrients yield energy?
no
micronutrients include:
the vitamins and the minerals
vitamin A is:
-a crucial vitamin that enables the cells of your
body to divide properly
-vitamin A enables the epithelial cells that line the entire alimentary canal to divide
properly
In the absence
of vitamin A, these epithelial cells won’t divide properly, And as a consequence, this will
lead to a deficiency in all other essential nutrients.
4 types of tissues we find in the
epithelial tissue, muscle tissue, neural tissue, and connective tissue
Nutrition refers to
how an organism, be it a plant, animal or a single bacterial cell,
acquires food and uses food to support all processes required for its existence.
The science of nutrition is the study of
the nutrients and other substances in food and
the body’s handling of them.
Nutritional genomics is
the science of
how nutrients affect gene expression.
food doesn’t only supply essential nutrients. Other nutrients, called non-nutrients,
like __ and ___ stave off chronic diseases.
fiber and phytochemicals
Fiber promotes
bowel health
Food waste is quickly and effortlessly eliminated, helping
to reduce the risk of colon cancer
Phytochemicals function as
antioxidants to help reduce the risk of chronic diet-related
diseases
An essential nutrient is one that
must be supplied by the diet because the
human body cannot synthesize it. Or maybe it can, but not in sufficient quantities.
Fiber promotes
bowel health
Phytochemicals function as
antioxidants to help reduce the risk of chronic diet-related
diseases.