graffiti brainstorm - ms maslanka's classes · 2019. 7. 24. · graffiti brainstorm •each...
TRANSCRIPT
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Graffiti Brainstorm
• Each group has a poster paper and a specific colour of marker.
• You have 2 minutes to write down as many ideas that you have about the topic listed at the top of the poster.
• At the end of the 2 minutes, your group will rotate to the next poster and you will have 2 minutes to write down as many ideas that you can about the topic listed at the top of that poster.
• When you reach your original poster, your group will have 2 minutes to summarize what is written on the poster and present this to the class.
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Introduction to Nutrition• Nutrition is the process by which organisms get food
and break it down into nutrients that can be used by the body.
• Nutrients provide the energy and materials needed for
growth, regulation, and repair and maintenance of cells.
• 6 basic types of nutrients: carbohydrates, proteins, fats, vitamins, minerals, and water
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Organisms get the nutrients they need in 2 ways:
-Autotrophs: organisms that make organic nutrients from inorganic substances.
Ex: Photosynthesis in green plants.
-Heterotrophs: organisms that cannot make their own food and must eat
food containing organic nutrients
from other plants or animals.
Ex: Humans and other animals
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Minerals• Inorganic compounds needed by the body in small
amounts.
• Types of Minerals: calcium, phosphorus, potassium, sodium, magnesium, chloride, zinc, iron, selenium, copper, iodine
• Sources: vegetables, dairy products, meat, eggs, fruits, grains, seafood, nuts, table salt, etc.
• Functions: enables certain chemicalreactions and building bones andcartilage.
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Vitamins• Essential requirement of a healthy diet; required in the
body in small amounts.
• Function: tissue developmentand growth and helps the bodyfight and resist disease.
• 2 kinds:
– Fat-soluble: can be stored in fat tissue (vitamins A and D)
– Water-soluble: cannot be stored and are constantly washed out of the body (must be included in the diet). Ex: Vitamin C
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Water
Water (55-75% of the body)
• Function: carries nutrients to and from body organs through the blood stream.
• Recommended that you drink 8-10glasses of water per day.
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Proteins• Functions: help build and repair
muscles and cell membranes.
• Must be broken down into their simplest form, amino acids, before they can be used by the body.
• 9/20 amino acids must be obtained from food -essential amino acids.
• A protein that contains all 9 essential amino acids is called a complete protein.
– meat, legumes, eggs, cheese, milk, and whole grain products.
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Vegetarian Proteins
• Most plant proteins are incomplete proteins (missing 1 or more of the essential amino acids).
• Vegetarians must eat a variety
of plant foods so that they
obtain all the essential amino
acids.
Legumes (beans, peas), nuts, grains
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Carbohydrates
• Function: quick energy source found in cereals, breads, fruits and vegetables.
• 2 types: Starch & Sugars
– Starch is made of long chains of sugars which must be broken down before it can be used by the body.
– Sugars can be used for fuel almost immediately.
• If you eat more carbohydrates than your body can use, the excess carbs are stored in muscles and the liver in the form of starch – can cause weight gain.
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Fats (Lipids)• Provide twice as much energy as do equal
amounts of proteins and carbohydrates.
• Helps support and cushion vital organs
-protect them from injury.
• Insulate the body against heat loss.
• Liquid at room temperature = oil
• Solid at room temperature = fat
Red meats, fish, nuts, avocados, junk food
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Canada’s Food Guide
• The food guide uses the science of nutrition and health to help you make healthy food choices.
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Canada’s Food Guide
• On the Food Guide rainbow below:
1. Label the different food groups
2. Predict the number of servings your age needs per day from each food group
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Canada’s Food Guide
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First Nations, Inuit and Métis Food Guide
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Energy in Food
• The amount of energy that can be obtained from nutrients is measured in calories.
• Calorie: the amount of energy needed to raise the temperature of 1kg of water by 1˚C.
– Food high in calories: 100g peanuts = 600 calories.
– Food low in calories: 100g lettuce = 20 calories.
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Calories
• https://www.youtube.com/watch?v=VEQaH4LruUo
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Calories
• The number of calories a person needs daily depends on the person’s size, build, occupation and age.
• Generally:
Younger people need more
calories than older people.
Males need more calories
than females.
Active people need more
calories than inactive people
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BMR
• BMR: Basal Metabolic Rate
– i.e. The energy (calories) needed to keep you awake and restful.
• Calculate your BMR!
– Google “BMR calculator”
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Assignment
• Complete “Using Canada’s Food Guide” worksheet.