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WorksheetsUnit 10: Food and Energy Test
Total questions: 30
Worksheet time: 30mins
6CO2 + 6H2O → C6H12O6 + 6O2
What does this chemical equation represent?
Cellular Respiration
Photosynthesis
ATP/ADP cycle
Hydrolization
Q=mcΔT
What does the "c" in this equation stand for?
change in temperature
mass
specific heat capacity
energy change
True or false:
The bigger the specific heat capacity of a substance, the slower it will heat up.
True
False
Calculate this equation:
Q = 4.0g x 1.0 (J/g°C) x 10 °C
Q = 40 J
Q = 40 cal
Q = 40 g
Q = 40 cal/g°C
The specific heat for copper is 0.385 (J/g °C).
The specific heat for granite is 0.790 (J/g °C).
Which of these elements will heat up the fastest?
copper
granite
The average cheeto weighs 1.0 grams.
There are 6.07 calories per gram.
How many calories are in 28 cheetos? (rounding up)
170 grams
28 grams
595 total calories
170 calories
What is the difference between ADP and APT?
ADP is like a fully charge molecule and ATP is when it needs energy.
D = di-phosphate (like a dead battery)
T = tri-phosphate
(like a fully charged batter)
Both create energy.
One molecule comes from the sun and the other molecule comes from food.
Which of the following elements are found in all macromolecules? (Select all that apply).
Which macromolecule is used as our main source of energy?
Lipids/Fats
Nucleic Acids
Proteins
Carbohydrates
What is one serving size for this item?
8 servings
2/3 cup
440 grams
230 calories
How many calories are in the whole container?
230 x 1 = 230
8 x 55 = 440
8 x 230 = 1,840
3 x 230 =690
Which macromolecule stores energy?
Carbohydrates
Proteins
Lipids/Fats
Nucleic Acids
What type of sugar does a plant make?
ribose
sucrose
fructose
glucose
True or false: oxygen (O2) is a reactant in photosynthesis.
True
False
How many grams of sugar are in this entire container?
4 grams
90 calories
20 grams
0 grams added sugars
This provides the energy needed for plants to undergo photosynthesis.
mitochondria
ATP
sunlight
oxygen
True or false: the Q (energy change) in Q=mcΔT
can be either Joules (J) or cal (calories)
True
False
What does this chemical equation represent?
C6H12O6 + 6O2 → 6CO2 + 6H20 + energy
ATP/ADP
Cellular Respiration
Photosynthesis
Energy flow
True or false:
Cellular respiration occurs in both autotrophs and heterotrophs.
True
False
What process creates sugar?
Cellular respiration
Photosynthesis
APT
Heterotrophs
This is the green pigment in plants.
chloroplast
mitochondria
stroma
chlorophyll
True or false:
a calorie is a measure of heat energy.
True
False
What organisms make its own food?
autotrophs
heterotrophs
Q=mcΔT
What are the units for "m" in this equation?
mass
grams
Celcius
calories
This is the powerhouse of the cell for both autotrophs and heterotrophs.
chloroplast
ATP
mitochondria
nucleus
This is the type of sugar in dairy products:
lactose
glucose
fructose
sucrose
True or false:
A reaction that gains heat is called exothermic.
True
False
This macromolecule makes up organs, muscles, skin, horomones and repairs tissue.
Carbohydrates
Lipids
Protein
Nucleic Acid
Which of the following is NOT a function of APT:
To drive metabolic processes
To facilitate transport of substances across membranes and in and out of the cell
To allow for mechanical work such as the movement of muscles
To trap sunlight in the cell
True or false:
The purpose of gaining energy is to do work.
True
False
