Name: ____________________________________________
Env. Biology
Date: ____________
Cell Respiration Review Sheet
1. Define cellular respiration.
This is the process by which most organisms (plants and animals)
break down their food using oxygen and produce energy, along with
CO2 and water.
2. What are the two types of respiration?
Aerobic (uses O2) and Anaerobic (no O2)
3. Provide a brief explanation of what aerobic respiration means?
Aerobic respiration takes glucose with oxygen and breaks it down into 36
ATP, CO2 and H2O.
4. Provide a brief explanation of what anaerobic respiration means?
Anaerobic respiration is how organisms make energy from their food
WITHOUT oxygen present.
5. What does the process of breathing accomplish in your body? Which two
gases are exchanged?
Breathing takes in O2 and releases CO2. The oxygen from breathing is
delivered to every cell to perform respiration. The CO2 we breathe out
was collected as a waste gas from this process in every cell.
6. Another name for energy is __ATP________________.
7. What is adenosine triphosphate? Draw the molecule. ATP is short for
ADENOSINE TRIPHOSPHATE and is the form of energy our cells can use.
In fact, cells cannot get energy from the food we eat UNTIL it is
converted into ATP.
8. Complete the following table about energy molecules:
Full name
# of phosphates # of high energy
bonds
ADP
Adenosine
2
1
Diphosphate
Amount of energy
little
ATP
Adenosine
Triphosphate
3
2
A lot
9. Compare and Contrast Aerobic Respiration and Anaerobic Respiration:
Aerobic respiration
Anaerobic respiration
Purpose of process
To extract energy from food
To extract energy from food as ATP
as ATP
Oxygen used?
Number of ATP
produced
Equation(s)
YES
NO
36 ATP
2 ATP
1. Alcoholic Fermentation
C6H12O6 + 6O2  6CO2 + 6 H2O C6H12O6  CO2 + Alcohol + 2
+ 36 ATP
ATP
2. Lactic Acid Fermentation
C6H12O6  Lactic Acid + 2 ATP
Location(s) in cell
Mitochondria
Cytoplasm
Most cells (plants, animals)
1. Alcoholic Fermentation
Yeast, some bacteria
What kind of cells?
2. Lactic Acid Fermentation
Human muscle cells, some
bacteria, and some fungi
Any important
business products
industries) or hurtful
products?
None
1. Alcoholic FermentationUsed to make beer and wine;
YEAST added to bread to make
it RISE
2. Lactic Fermentation
Can be used to make yogurt and
cheese; Harmful product is
lactic acid when inside muscle
cells- makes them sore
Critical Thinking Questions:
1. How is a cell similar to an engine? Explain
In an engine, fuel is burned using oxygen and produces energy from the
motor to do work. CO2 is given off in exhaust.
In a cell, the “fuel” is glucose. The process also usually uses oxygen.
This produces “power” in the form of ATP. The waste products include
water, and this also produces CO2 gas.
2. What are the four chemicals that are exchanged over and over again in the cycles
of photosynthesis and cellular respiration? Draw a diagram that summarizes the
relationship between the two processes. CO2, H2O, glucose, and oxygen.