Name________________________
Date:_______________
Class Period:______
Energy Transformations Review Packet
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assignments to practice skills as well as to provide evidence of learning and mastery of what I’ve learned. I have the strength of
character to do the job that is asked of me and grow from the experience.
Criterion
0
Homework and Effort
Homework and
The assignment
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does not offer
sufficient
evidence of
student effort.
Gradebook
Points /40
Late Penalty
5
1-2 (Approaches)
3-4 (Meets)
5-6 (Exceeds)
The assignment is at least 1/2
complete, OR
mostly incorrect
.
The assignment is at
least ¾ complete and
mostly correct. Work
is shown when
appropriate. All writing
is legible.
The assignment is
complete and almost
entirely correct. Work
is shown when
appropriate. All writing
is legible.
15
30
40
All of the living things on the planet rely on 4 chemical reactions.




Photosynthesis
Aerobic Cellular Respiration
Anaerobic Cellular Respiration (Fermentation)
Combustion
These 4 reactions cycle the biologically-important element Carbon through ecosystems.
This cycle is called the Carbon Cycle
Photosynthesis
1.
Write the unbalanced chemical formula below.
2.
Balance the formula.
3.
What kinds of organisms do this reaction? (Circle all that apply)
Autotrophs
Heterotrophs
Plants
Animals
Fungi
Algae
Some bacteria
Humans
4.
Where in the cell does this reaction take place?
5.
What are the products of this reaction?
6.
Which product is most important to the organism? (include WHY)
7.
What are the reactants of this reaction?
8.
Is this reaction exothermic or endothermic? (include WHY)
9.
How does this reaction benefit people? (be thorough)
10. Draw a diagram of the reaction below using a plant (include all products and reactants)
STOP! Have Mrs. Dignan check your answers before you move on:
Aerobic Cellular Respiration
1.
Write the unbalanced chemical formula below.
2.
Balance the formula.
3.
What kinds of organisms do this reaction? (Circle all that apply)
Autotrophs
Heterotrophs
Plants
Animals
Fungi
Algae
Some bacteria
Humans
4.
Where in the cell does this reaction take place?
5.
What are the products of this reaction?
6.
Which product is most important to the organism? (include WHY)
7.
What are the reactants of this reaction?
8.
Is this reaction exothermic or endothermic? (include WHY)
9.
How does this reaction benefit people? (be thorough)
10. Draw a diagram of the reaction below using a mountain gorilla (include all products and
reactants)
STOP! Have Mrs. Dignan check your answers before moving on:
Fermentation/Anaerobic Cellular Respiration
1.
Write the unbalanced chemical formula below.
2.
Balance the formula.
3.
What kinds of organisms do this reaction? (Circle)
Autotrophs
Heterotrophs
Plants
Animals
Fungi
Algae
Some bacteria
Humans
4.
Where in the cell does this reaction take place?
5.
What are the products of this reaction?
6.
Which product is most important to the organism? (include WHY)
7.
What are the reactants of this reaction?
8.
Is this reaction exothermic or endothermic? (include WHY)
9.
How does this reaction benefit people? (be thorough)
10. Draw a diagram of the reaction below using a yeast cell (include all products and reactants)
STOP! Have Mrs. Dignan check your answers before moving on:
Combustion
1.
Write the unbalanced chemical formula below.
2.
Balance the formula.
3.
What kinds of organisms do this reaction? (Circle)
Autotrophs
Heterotrophs
Plants
Animals
Fungi
Algae
Some bacteria
Humans
4.
Where in the cell does this reaction take place?
5.
What are the products of this reaction?
6.
Which product is most important to the organism? (include WHY)
7.
What are the reactants of this reaction?
8.
Is this reaction exothermic or endothermic? (include WHY)
9.
How does this reaction benefit people? (be thorough)
10. Draw a diagram of the reaction below using a burning tree (include all products and reactants)
STOP! Have Mrs. Dignan check your answers before moving on:
Carbon Cycle
1. Draw the Carbon cycle below. Include all steps, as well as the chemical formulae of all important
compounds. Include water, carbon dioxide, oxygen, and glucose as well as aerobic cellular respiration,
combustion, fermentation, and photosynthesis.
H2O
O2
CO2
STOP! Have Mrs. Dignan check your answers before moving on:
Energy Pyramid
1.
On the Energy Pyramid below, identify each of the trophic levels and show how energy transfers
from one level to another. Include; producers, primary consumers, and secondary consumers.
Explain how much energy passes from one level to the next.
STOP! Have Mrs. Dignan check your answers before moving on:
Review Questions
1.
From what source do all living things get their energy from? _________________
a. Explain_________________________________________________________________
________________________________________________________________________
________________________________________________________________________
________________________________________________________________________
________________________________________________________________________
2.
Photosynthesis converts_________________ energy to ________________ energy.
3.
Cellular respiration and fermentation convert _____________ energy to ______________ energy.
4.
Combustion converts _____________ energy to ______________ energy and ______________
energy.
5.
How do plants gain mass without removing soil from the ground? (2 sources)________________
_______________________________________________________________________________
6. How do you know that CO2 gas has mass?_____________________________________________
__________________________________________________________________________________
__________________________________________________________________________________
__________________________________________________________________________________
STOP! Have Mrs. Dignan check your answers before moving on:
7.
How much ATP does aerobic cellular respiration produce?_________
8.
How much ATP does fermentation produce?________
9.
Which process of the 2 above is more efficient?____________ (why?)____________________
_______________________________________________________________________________
_______________________________________________________________________________
10. When does your body perform aerobic cellular respiration?_______________________________
______________________________________________________________________________
11. When does your body perform anaerobic cellular respiration? ____________________________
______________________________________________________________________________
STOP! Have Mrs. Dignan check your answers before moving on:
12. Why is too much CO2 in the atmosphere a bad thing for people?__________________________
_______________________________________________________________________________
_______________________________________________________________________________
_______________________________________________________________________________
13. Why is cutting down trees and burning the wood “doubly bad” for people?___________________
_______________________________________________________________________________
_______________________________________________________________________________
_______________________________________________________________________________
14. How is combustion similar to cellular respiration? ______________________________________
_______________________________________________________________________________
_______________________________________________________________________________
_______________________________________________________________________________
Congratulations! You’ve completed this review packet! Use it as a study guide to prepare for the test:
Formal Study Guide
This portion of the packet is an optional tool created to help you identify what you’ll need
to know for the test so you can study appropriately. It does not need to be turned in.
Major Concepts – you are expected to have a thorough understanding of each of the
following concepts, and to be able to explain how they relate to one another:
1. The first law of thermodynamics (including an understanding of the difference
between matter and energy)
2. The Carbon Cycle
3. Photosynthesis
4. Cellular Respiration
5. Fermentation
6. Combustion
Vocabulary (in addition to terms used above):
Matter
Energy
Chemical Reaction
Molecules
Reactant
Product
Chloroplast
Glucose/Carbohydrate
Atoms
ATP
Hydrocarbon Mitochondria Carbon Dioxide
Chemical Equation
Trophic Level
Autotroph
Heterotroph
Energy Pyramid
Primary Consumer
Producer
O2
H2O
C6H12O6
Secondary Consumer
CO2
Experimental Design:
You should be able to identify the independent, dependent, and control variables in a
given scientific investigation. You should also be able to identify ways the investigators
can increase validity and reliability in their investigation.