1. 1.3 Cells and Energy cellular respiration ATP glycolysis fermentation
photosynthesis

2. 1.3 Cells and Energy
Cellular Respiration
Series of chemical reactions that transforms the energy in food molecules to usable energy.
ATP—adenosine triphosphate—a usable molecule of energy

3. Reactions in the Cytoplasm
1.3 Cells and Energy
Reactions in the Cytoplasm
Glycolysis (step 1 of cellular respiration)
Transforms glucose to smaller molecules
Requires energy and releases electrons

4. Reactions in Mitochondria
1.3 Cells and Energy
Reactions in Mitochondria
Step 2: smaller molecules are broken down more electrons are released

5. Reactions in Mitochondria (cont.)
1.3 Cells and Energy
Reactions in Mitochondria (cont.)
Step 3 (final step): requires oxygen and uses electrons from steps 1 and 2 to produces ATP and water

6. Fermentation Occurs in cytoplasm only Does not use oxygen
1.3 Cells and Energy
Fermentation
Occurs in cytoplasm only
Does not use oxygen
Produces fewer ATP molecules compared to cellular respiration
Types of fermentation
Lactic acid fermentation
Alcohol fermentation

7. Processes that Release Cellular Energy
1.3 Cells and Energy
Processes that Release Cellular Energy

8. Photosynthesis Consists of a series of chemical reactions
1.3 Cells and Energy
Photosynthesis
Consists of a series of chemical reactions
Transforms light energy to food

9. Light and Pigments Objects reflect some colors and absorb others.
1.3 Cells and Energy
Light and Pigments
Objects reflect some colors and absorb others.
Chloroplasts in plants contain the pigment chlorophyll that reflects green light.

10. Reactions in Chloroplasts
1.3 Cells and Energy
Reactions in Chloroplasts
Photosynthesis uses light energy, water, and CO2 to make sugars.

11. Importance of Photosynthesis
1.3 Cells and Energy
Importance of Photosynthesis
The cells of most organisms use sugars produced by photosynthesis.
It supplies Earth’s atmosphere with oxygen which is needed for cellular respiration.

12. Glycolysis is part of what process? A cellular respiration
1.3 Cells and Energy A B C D
Glycolysis is part of what process?
A cellular respiration
B lactic acid fermentation
C alcohol fermentation
D photosynthesis
Lesson 3 Review

13. What makes leaves appear green? A water B carbon dioxide C glucose
1.3 Cells and Energy A B C D
What makes leaves appear green?
A water
B carbon dioxide
C glucose
D chlorophyll
Lesson 3 Review

14. Where does photosynthesis occur? A cytoplasm B mitochondria
1.3 Cells and Energy A B C D
Where does photosynthesis occur?
A cytoplasm
B mitochondria
C chloroplasts
D muscles
Lesson 3 Review

15. End of Lesson 3

16. Chapter Resources Menu
Chapter Assessment
California Standards Practice
Concepts in Motion
Image Bank
Science Online
Interactive Table
Virtual Lab
BrainPOP
Click on a hyperlink to view the corresponding feature.

17. Which is not a macromolecule found in cells? A water B lipids
C proteins
D carbohydrates
Chapter Assessment 1

18. What is DNA? A a protein B a nucleic acid C a lipid D a carbohydrate A
Chapter Assessment 2

19. What organelle transports substances in the cytoplasm? A ribosomes D
What organelle transports substances in the cytoplasm?
A ribosomes
B lysosomes
C vacuoles
D vesicles
Chapter Assessment 3

20. How are eukaryotic and prokaryotic cells similar? A size B C D
How are eukaryotic and prokaryotic cells similar?
A size
B both contain membrane-bound organelles
C both have a cell membrane
D both have a nucleus
Chapter Assessment 4

21. What is required for fermentation? A oxygen B glucose C lactic acid
D carbon dioxide
Chapter Assessment 5

22. What organelle is common to both plant and animal cells? A cell wall
SCI 1.b A B C D
What organelle is common to both plant and animal cells?
A cell wall
B chloroplasts
C cytoskeleton
D lysosomes
CA Standards Practice 1

23. Where is genetic information stored in plant and animal cells?
SCI 1.c A B C D
Where is genetic information stored in plant and animal cells?
A nucleus
B cell membrane
C ribosomes
D chloroplasts
CA Standards Practice 2

24. How do multicellular organisms grow? A their cells get bigger
SCI 1.f A B C D
How do multicellular organisms grow?
A their cells get bigger
B they retain more water
C the number of cells increases
D their organelles get bigger
CA Standards Practice 3

25. Which organelle releases energy for cell functions? A nucleus
SCI 1.d A B C D
Which organelle releases energy for cell functions?
A nucleus
B chloroplasts
C ribosomes
D mitochondria
CA Standards Practice 4

26. What organelle uses sunlight energy to make food? A cell wall
SCI 1.d A B C D
What organelle uses sunlight energy to make food?
A cell wall
B chloroplasts
C mitochondria
D central vacuole
CA Standards Practice 5

27. Plant Cell
Animal Cell
Concepts in Motion 1

28. Image Bank

29. Interactive Table
Cell Structure
Part A Part B Part C

30. End of Resources