Photosynthesis and Cellular Respiration Notes
Name:
Chapters 7 & 8
Biology 5.0
Date:
Period:
Activating Prior Knowledge:
1. List the eight characteristics of living things.
2. List the three subatomic particles, their charge, and location within an atom.
3. List the four classes of organic compounds. Include the monomer(s) and an example of each class of
compounds.
4. List four differences between plant and animal cells.
5. Which organelle carries out photosynthesis?
6. Which organelle converts chemical energy stored in food into compounds that are more convenient for the
cell to use?
7. What is the name of the energy currency molecule of the cell?
8. Why are most plants green?
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Autotrophs
Heterotrophs
 Autotrophs use the energy directly from _____________ and store it in _____________ _______________.
 They convert ___________ ______________ to ______________ ______________ stored in carbohydrates
( ________________ ).
 Photosynthesis is a series of complex reactions in which the product of one reaction is __________________
in the next reaction.
 A series of reactions linked in this way is called a ____________________ ____________________.
Equations:
Photosynthesis:
_____________ + _____________
Sunlight
_____________ + _____________
Cellular Respiration:
_____________ + _____________
_____________ + _____________ + _____________
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Light and Pigments:
• Light travels through space as waves of _____________.
•
Different colors have __________________wavelengths.
•
Wave length and energy are
•
The smaller the wave length, the more
•
BLUE light is
.
.
energy and RED light is
energy
Photosynthsesis
• Takes place in the
•
– saclike photosynthetic
membrane in the chloroplast
•
– stacks of thylakoids
•
– the region outside of the
thylakoid membranes
Chloroplast Pigments
•
Membranes of the thylakoid contain a variety of pigments
•
Pigments –
•
____________________ – the most abundant pigment in the leaves of plants that absorbs blue and red light.
•
Chlorophyll a - blue-green pigment
•
Chlorophyll b - yellow-green pigment
Accessory Pigments

Accessory pigments absorb light in other regions of the spectrum
o Carotene - an orange pigment
o Xanthophyll - a yellow pigment
o Anthocyanin – a red pigment

The accessory pigments are always present in most plants but masked by the

Why do leaves change color in the fall?
.
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Chemical Energy and ATP:
 One of the most important compounds that cells use to store and release energy is
________________________________________ ( ______ ).
 Label each part of the diagram of an ATP molecule below.
____________
__________
_______________
 Why is ATP useful to cells?
An Overview of Photosynthesis – TWO sets of reactions:
Type of Reaction
Description
Location (in chloroplast)
Light Dependent
Light Independent
Equation for Photosynthesis:
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Factors Affecting the Rate of Photosynthesis:
1. Light Intensity
2. Temperature
3. Amount of CO2
4. Water Availability
Structure of the Chloroplast:
Equation for Photosynthesis:
Equation for Cellular Respiration:
Structure of the Mitochondria:
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Comparing Photosynthesis and Cellular Respiration:
Photosynthesis
Cellular Respiration
Function
Location
Reactants
Products
 Which type(s) of organisms carry out photosynthesis?
 Which type(s) of organisms carry out cellular respiration?
Cellular Respiration happens
steps.
and in many
An Overview of Cellular Respiration:
Three Main Stages of Cellular Respiration:
1.
2.
3.
Oxygen and Energy:
Pathway
Aerobic
Anaerobic
Description
Example(s)


 Electron Transport Chain
 Fermentation
Location
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Biology Keystone Exam Preparation
Photosynthesis and Cellular Respiration
1. A biological process that occurs in plants is represented below.
Which row in the chart below identifies the lettered substances in the process?
A. Row 1
B. Row 2
C. Row 3
D. Row 4
2. Chlorophyll is a molecule shared by prokaryotes and eukaryotes in the process of
A. Cellular respiration
C. Protein synthesis
B. Photosynthesis
D. Polymerization
3. Which of the following best describes the flow of energy in cells?
A. Cell work → ATP→ Glucose
C. ATP → Glucose
B. Glucose → cell work
D. Glucose → ATP → cell work
4. The synthesis of carbohydrates occurs in the stroma of chloroplasts. This process uses energy supplied by
A. ATP
B. CO2
C. PGAL
D. O2
5. Which phrase, if placed in box X, would correctly complete the flowchart shown below?
A. Increased use of starch in root cells
B. Increased concentration of glucose in leaf cells
C. Decreased ATP in root cells
D. Decreased concentration of oxygen in leaf cells
6. Photosynthesis and cellular respiration are two major processes of carbon cycling in living organisms. Which
statement correctly describes one similarity between photosynthesis and cellular respiration?
A. Both occur in animal and plant cells.
B. Both include reactions that transform energy.
C. Both convert light energy into chemical energy.
D. Both synthesize organic molecules as end products
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7. A biological process that occurs in both plants and animals is shown below.
Which row in the chart below identifies the lettered substances in this process?
A. Row 1
B. Row 2
C. Row 3
D. Row 4
8. Use the diagrams below to answer the questions.
A. Complete the chart below by describing energy transformations involved in each process.
Process
Energy Transformations
Photosynthesis
Cellular Respiration
B. Describe how energy transformations involved in photosynthesis are related to energy transformations involved
in cellular respiration.
_____________________________________________________________________________________________
_____________________________________________________________________________________________
_____________________________________________________________________________________________
_____________________________________________________________________________________________
____________________________________________________________________________________________
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