UNIT 10: CHAPTER 18 Flashcards
Anything that we eat, and which nourishes our body
Food
It is essential because it contains substamces which perform important functions in our body.
Food
What are the two important features for any item to be called food?
- It should be worth eating, that is, it should be edible.
2. It must nourish the body.
Unit of measurement that counts the energy contained in food
Calorie
The three functions of food
- Social Function
- Psychological Function
- Physiological Function
Four Physiological Function
- Energy Giving
- Growth
- Strength
- Regulatory
It a process of consuming foods, digesting and absorbing nutrients and using these nutrients for growth, development and maintenance of a healthy life
Nutrition
Provision if adequate energy and nutrients to the cells to enable them to perform their physiological function.
Nutrition
Process of Nutrition
Eating ➡️ Digestion ➡️ Absoption ➡️Transporation ➡️ Utilization
Chemical substances present in food and are responsible for nourishing the body.
Nutrients
Two Types of Nutrients
- Macronutrients
* Micronutrients
Presenr in large quantities in foods and are alsi required large amounts by the body
Macronutrients
Macronutrients composed of ?
- Carbohydrates
- Protens
- Fats and Oils
Compose of small chains of sugar ehich the digestive body breaks down into glucose to use as the body’s primarily energy source
Carbohydrates
Percentage of Carbohydrates in a diet
45-64%
1 gram of carbohydrate give how many kcal of energy
4kcal
3 Types of Carbohydrates
- Monosaccharide
- Disaccharide
- Polysaccharide
Examples if monosaccharides:
Glucose, galactose, fructose
Examples if disaccharides
Sucrose, maltose, lactose
Examples if Polysaccharides
starch, glycogen, chitin, cellulose
Buildup, maintain and replace tissue
Protein
Protein breakdown into polypeptides and individual unit is called
Amino acids
9 essential Amino acids
Histidine Isoleucine Leucine Lysine Methionine Phenylalanine Threonine Tryptophan Valine
Is a unique amino acid because it is inly required during infancy
Histidine
Adults should get how many percent of caloried from protein
10-35%
Needed for growth, maintenance and repair of tissues
Protein
Necessary for production if enzymes, hormones, antibodies, hemoglobin, etc.
Protein
Help in clotting of bLood
Protein
Provide energy if necessary
Protein
made up of small units called fatty acids
Fats
Densest source of energy in the diet
Fats
Support the absorption if fat soluble vitamins, cushion organs and act as largest form of energy storage
Fat
Helps the brain and nervous system to develop
Fats
1 gram of fats give how many kcal of energy
9 kcal
Types of fats
Saturated, Unsaturated, Trans Fats
Types of fats that are solid at temperature and its chemical formula is a single bond
Saturated
Types of fats that are liquid at temperature and its chemical formula is a double bond
Unsaturated
Found in meat, milk, cheese, coconut oil
Saturated fats
Found in plants food and fish
Unsaturated
Types of fats the is good for the heart
Unsaturated fats
Found in margarine, snack foods, baked foods
Trans Fats
Also known for a hydrogenated or partially hydrogenated
Transfats
could raised the LDL cholesterol and lower the the HDL cholesterol
Trans Fats
present in small quantities in foods but are essential for our body
Micronutrients
Not produced by the body thus muust he obtain from food
Micronutrients