Name 	   Class 	    Date 	

9.1 Cellular Respiration: An Overview
BUILD Vocabulary
The The chart below shows key terms from the lesson with their definitions. Complete the chart by writing a strategy to help you remember the meaning of each term. One has been done for you.

Term	Definition	How I’m Going to Remember the Meaning	
Aerobic	Process that requires oxygen	Aero- means “air”; oxygen is part of air.	
Anaerobic	Process that does not require oxygen		
calorie	Amount of energy needed to raise the temperature of 1 gram of water 1 degree Celsius		
Cellular respiration	Process that uses oxygen to release energy from food		

Overview of Cellular Respiration
Cellular respiration is the process that uses oxygen to release energy from food.
Use the terms in the box below to label the diagram of cellular respiration.

electron transport	Krebs cycle
glycolysis	mitochondrion

Energy

Energy

Energy

Glucose

CO2

O2

H2O

Answer the questions.
1. Where does glycolysis take place?
A. mitochondrion	C. cell membrane
B. cytoplasm	D. nucleus
2. Where do the Krebs cycle and the electron transport chain take place?
A. ribosome	C. mitochondrion
B. nucleus	D. cytoplasm
3. Which reactant is used in the electron transport chain?
A. water	C. oxygen
B. carbon dioxide	D. sugar
4. Which stage(s) of cellular respiration are aerobic?
A. glycolysis	C. electron transport
B. Krebs cycle	D. both B and C

Comparing Photosynthesis and Cellular Respiration
Cellular respiration and photosynthesis can be thought of as opposite processes. Energy flows in opposite directions in the two processes. Complete the table using the words below:
. 
carbon dioxide	energy release	mitochondria	water

	Photosynthesis	Cellular Respiration	
Function	energy capture		
Location	chloroplasts		
Reactants		glucose and oxygen	
Products	oxygen and glucose		

Answer the questions
1. Circle the correct answer. Which process releases energy for the cell?
cellular respiration	photosynthesis
2. Circle the correct answer. For which reaction is 6CO2 + 6H2O → C6H12O6 + 6O2 the correct equation?
cellular respiration	photosynthesis
3. Which statement about cellular respiration is true?
A. Cellular respiration does not use energy.   B. The total amount of energy is constant.
C. Energy is destroyed during the reaction.    D. Energy is created during the reaction.
4. How are the processes of photosynthesis and cellular respiration connected?
A. The products of both processes are the same.     B. The reactants for one process are the same as the reactants for the other process.
C. Each process provides the materials needed in the other process.