Download Nutrition: On the Menu

Nutrition: On the Menu
Fill in the following table:
Nutrient
Water
1.
Vitamines
Minerals
Carbs
Lipids
Protien
Function
Dissolves chemicals so the
reactions can take place in the
body
Regulates metabolism
Regulate metabolism
Provides short term energy
Long term energy
Make hormones and cell walls
Needed for the repair of
tissues
Gives energy when needed
Check off the main type of nutrient present in each of the
following:
Food
Carbs
Lipids
Proteins
Water,
Vitamins,
Minerals
X
X
Apple Juice
Veal
X
Butter
X
Lettuce
X
Rice
X
X
Bread
X
Chicken
2.
3.
After falling off her bike, Isabella notices she has many
scrapes, cuts and bruises. What category of food should
she eat to help her heal faster and why?
She should eat foods high in protein, like meat, eggs, nuts,
veggies
4.
It is noon, and Eric is prepping himself for his swimming
competition at 6:00pm that evening. Suggest 2 types of
foods he should eat that will provide him with the necessary
energy for his competition.
He should eat carb-rich foods, like bread and rice
5.
Samir consumes 14 250kJ of energy each day. He notices
he’s beginning to gain weight. What 2 changes should he
make to his lifestyle to go back to his regular healthy
weight?
He should take in less energy by eating less fatty foods,
and he should exercise
6. Associate the forms of energy on the left with the definitions on the right:
Potential Energy
__2___
Thermal Energy
__5___
Chemical Energy
__3___
Kinetic Energy
__1___
Mechanical Energy __4___
1. Energy possessed by a moving
body
2. Energy possessed by an object or
body due to its position in space
3. Energy contained in chemical
bonds
4. Energy possessed by a body’s
motion and its position in space
5. Energy in the form of heat due to
vibrations of molecules
7.
Give an example of an energy transformation:
Shivering: Kinetic energy of moving muscle molecules 
thermal energy
Gas fireplace to heat house: Chemical energy of fuel 
thermal energy
Stretching an elastic and letting it snap: Potential  kinetic
energy
8.
In an experiment in which the goal was to identify the types
of nutrients present in a type of food, the following results
were obtained:
 The test on the first sample turned orange when tested
with Fehling’s solution
 The test on the second sample was blue when tested
with the Biuret Solution
 And the last test revealed that the sample remained
colorless when tested with Soudan III
a) What can you say about the types of nutrients present in
this food?
It has carbs, but no fat or protein
b) Of the following, which do you think is most likely to be the
identity of this food?
1. Tuna
2. Brown Sugar
It’s the brown sugar
3. Margarine
4. Water
9.
While reading the Nutrition Facts table of your granola
bar, you notice that they forgot to print the quantity of
proteins (in grams). The granola bar has a total of 160
calories per serving, along with 7 grams of lipids and
20 grams of carbs. Knowing that 1 calorie is 4.18 kJ,
calculate the amount of protein per serving in this
granola bar.
Calculate total energy in kJ using calories:
1 cal
= 160 cal
4.18 kJ
x kJ
X = 668.8 kJ
Calculate number of kJ given by the lipids and carbs:
Lipids:
1 gram = 7 grams
37 kJ
x kJ
X = 259 kJ
Carbs:
1 gram = 20 grams
17 kJ
x kJ
X = 340 kJ
Energy of protein = Total energy – energy of carbs – energy of
lipids:
Energy of protein = 668.8 kJ - 259 kJ - 340 kJ = 69.8 kJ
Since we know 1 gram of protein gives us 17 kJ and we have 68.8
kJ, we cross multiply to find mass of protein:
1 gram = X grams
17 kJ
69.8 kJ
X = 4.1 grams of protein in the granola bar