Nutrition Check In

Nutrition Check In

January 25, 2021

What have we learned so far?

- How scientists determine how much energy is in our food

- How scientists test our food for nutrients

- Different types of carbohydrates and their health effects

Time for some review!

Make sure you have a pencil/pen, paper and calculator. You will also need your handout from the lab activity from last class.

Multiple Choice

What are calories?

• A measure of how much fat is in your food

• How much energy it takes to raise 1g of water by 1°C

• How much energy it takes to burn 1g of food

• Something you should avoid to be healthy

Multiple Choice

A kilocalorie (C) is.....

• The same as a kilojoule

• The same as 4.18 kilojoules

• The same as a calorie

Multiple Choice

How many kilojoules in a sample of food with 120 kilocalories?

(Use the conversion factor 1 kilocalorie/4.18 kilojoule)

• 501.6 kilojoules

• 28.7 kilojoules

• 120 kilocalories

Answer: 501.6 kilojoules

• 120 kilocalories x 4.18 kilojoules/1 kilocalories = 501.6 kilojoules

• Take what you're given, multiply by the conversion factor

• Make sure the units you want to get rid of cancel out

Multiple Choice

Which of the following nutrients contains more calories per gram?

• Carbohydrates

• Fats

• Proteins

Calories in different nutrients

Nutrient Testing

Testing for carbohydrates, lipids and proteins

Carbohydrate Testing

• Simple carbohydrates - turn orange with Benedict's reagent

Carbohydrate Testing

• Complex carbohydrates - turn black with Iodine

Lipid Testing

• Lipids will turn a paper towel from opaque to translucent

Protein Testing

• Proteins - turn purple with Biuret reagent

Multiple Select

What was in the unknown solution?

Check ALL that apply?

• Simple carbohydrates

• Complex carbohydrates

• Proteins

• Lipids

What nutrients were in the following drinks?

• Coconut water (Nana/Ida)

• Redbull (Adrian)

• Cucumber water (Val)

Recap: Carbohydrates

Multiple Select

Which of the following are simple carbohydrates?

Select ALL that apply

• Fructose

• Glucose

• Sucrose

• Starch

Multiple Choice

True or false: sugar is bad for you

• True

• False

Multiple Select

Which of the following foods are full of complex carbohydrates? Check ALL that apply!

• Oatmeal

• Broccoli

• Honey

• Coke

Multiple Select

Which of the following foods are high in simple carbohydrates? Select ALL that apply

• White bread

• Beans

• Pasta

• Candy

Multiple Select

Which of the following can be consequences of a diet TOO HIGH in simple carbohydrates? Select all that apply:

• Tooth decay

• Diabetes

• Obesity

• Heart disease