1. the BIG idea CHAPTER OUTLINE NEW CHAPTER The Cell CHAPTER All living things are made up of cells. The cell is the basic unit of living things. Microscopes allow us to see inside the cell. Different cells perform various functions. CHAPTER RESOURCES 15.1 15.2 15.3

2. VOCABULARY KEY CONCEPT CHAPTER HOME unicellular multicellular organism The cell is the basic unit of living things. 15.1 SECTION OUTLINE SECTION OUTLINE microscope bacteria All living things are made up of one or more cells. Organisms share the following characteristics: organization ability to respond ability to grow and develop ability to reproduce Multicellular organisms include this frog and these water-lily plants. Many unicellular organisms live in pond water. CHAPTER RESOURCES CHAPTER RESOURCES

3. VOCABULARY KEY CONCEPT CHAPTER HOME An individual living thing, made up of one or many cells, that is capable of growing and reproducing. organism KEY CONCEPT SUMMARY KEY CONCEPT SUMMARY The cell is the basic unit of living things. unicellular multicellular organism microscope bacteria CHAPTER RESOURCES CHAPTER RESOURCES 15.1

4. VOCABULARY KEY CONCEPT CHAPTER HOME A term used to describe an organism that is made up of a single cell. unicellular KEY CONCEPT SUMMARY KEY CONCEPT SUMMARY The cell is the basic unit of living things. unicellular multicellular organism microscope bacteria CHAPTER RESOURCES CHAPTER RESOURCES 15.1

5. VOCABULARY KEY CONCEPT CHAPTER HOME A term used to describe an organism that is made up of many cells. multicellular KEY CONCEPT SUMMARY KEY CONCEPT SUMMARY The cell is the basic unit of living things. unicellular multicellular organism microscope bacteria CHAPTER RESOURCES CHAPTER RESOURCES 15.1

6. VOCABULARY KEY CONCEPT CHAPTER HOME An instrument that uses glass lenses to magnify an object. microscope KEY CONCEPT SUMMARY KEY CONCEPT SUMMARY The cell is the basic unit of living things. unicellular multicellular organism microscope bacteria CHAPTER RESOURCES CHAPTER RESOURCES 15.1

7. VOCABULARY KEY CONCEPT CHAPTER HOME A large group of one-celled organisms that sometimes cause disease. Bacteria is a plural word; the singular is bacterium. bacteria KEY CONCEPT SUMMARY KEY CONCEPT SUMMARY The cell is the basic unit of living things. unicellular multicellular organism microscope bacteria CHAPTER RESOURCES CHAPTER RESOURCES 15.1

8. VOCABULARY KEY CONCEPT CHAPTER HOME cytoplasm nucleus cell membrane Microscopes allow us to see inside the cell. SECTION OUTLINE SECTION OUTLINE eukaryotic cell prokaryotic cell A prokaryotic cell is relatively simple in structure, with no nucleus or other organelles. organelle cell wall chloroplast mitochondria A bacterium consists of a single prokaryotic cell. SIMULATION View cells through different types of microscopes. CHAPTER RESOURCES CHAPTER RESOURCES 15.2

9. VOCABULARY KEY CONCEPT CHAPTER HOME Microscopes allow us to see inside the cell. SECTION OUTLINE SECTION OUTLINE A prokaryotic cell is relatively simple in structure, with no nucleus or other organelles. A eukaryotic cell is more complex, with many different organelles inside it. Plants and animals are made up of many eukaryotic cells. plant cellanimal cell cytoplasm nucleus cell membrane eukaryotic cell prokaryotic cell organelle cell wall chloroplast mitochondria CHAPTER RESOURCES CHAPTER RESOURCES 15.2

10. VOCABULARY KEY CONCEPT CHAPTER HOME Microscopes allow us to see inside the cell. SECTION OUTLINE SECTION OUTLINE A prokaryotic cell is relatively simple in structure, with no nucleus or other organelles. A eukaryotic cell is more complex, with many different organelles inside it. cytoplasm nucleus cell membrane eukaryotic cell prokaryotic cell organelle cell wall chloroplast mitochondria CHAPTER RESOURCES CHAPTER RESOURCES SIMULATION Take a virtual tour of a cell. Plants and animals are made up of many eukaryotic cells. 15.2

11. VOCABULARY KEY CONCEPT CHAPTER HOME The outer boundary of the cytoplasm, a layer that controls what enters or leaves the cell; a protective covering enclosing an entire cell. cell membrane KEY CONCEPT SUMMARY KEY CONCEPT SUMMARY Microscopes allow us to see inside the cell. cytoplasm nucleus cell membrane eukaryotic cell prokaryotic cell organelle cell wall chloroplast mitochondria CHAPTER RESOURCES CHAPTER RESOURCES 15.2

12. VOCABULARY KEY CONCEPT CHAPTER HOME A thick, gelatin-like material contained within the cell membrane. Most of the work of the cell is carried out in the cytoplasm. cytoplasm KEY CONCEPT SUMMARY KEY CONCEPT SUMMARY Microscopes allow us to see inside the cell. cytoplasm nucleus cell membrane eukaryotic cell prokaryotic cell organelle cell wall chloroplast mitochondria CHAPTER RESOURCES CHAPTER RESOURCES 15.2

13. VOCABULARY KEY CONCEPT CHAPTER HOME The structure in a eukaryotic cell that contains the genetic material a cell needs to reproduce and function. nucleus KEY CONCEPT SUMMARY KEY CONCEPT SUMMARY Microscopes allow us to see inside the cell. cytoplasm nucleus cell membrane eukaryotic cell prokaryotic cell organelle cell wall chloroplast mitochondria CHAPTER RESOURCES CHAPTER RESOURCES 15.2

14. VOCABULARY KEY CONCEPT CHAPTER HOME A cell in which the genetic material is enclosed within a nucleus, surrounded by its own membrane. eukaryotic cell KEY CONCEPT SUMMARY KEY CONCEPT SUMMARY Microscopes allow us to see inside the cell. cytoplasm nucleus cell membrane eukaryotic cell prokaryotic cell organelle cell wall chloroplast mitochondria CHAPTER RESOURCES CHAPTER RESOURCES 15.2

15. VOCABULARY KEY CONCEPT CHAPTER HOME A cell that lacks a nucleus and other organelles, with DNA that is not organized into chromosomes. prokaryotic cell KEY CONCEPT SUMMARY KEY CONCEPT SUMMARY Microscopes allow us to see inside the cell. cytoplasm nucleus cell membrane eukaryotic cell prokaryotic cell organelle cell wall chloroplast mitochondria CHAPTER RESOURCES CHAPTER RESOURCES 15.2

16. VOCABULARY KEY CONCEPT CHAPTER HOME A structure in a cell that is enclosed by a membrane and that performs a particular function. organelle KEY CONCEPT SUMMARY KEY CONCEPT SUMMARY Microscopes allow us to see inside the cell. cytoplasm nucleus cell membrane eukaryotic cell prokaryotic cell organelle cell wall chloroplast mitochondria CHAPTER RESOURCES CHAPTER RESOURCES 15.2

17. VOCABULARY KEY CONCEPT CHAPTER HOME A protective outer covering that lies just outside the cell membrane of plant cells. cell wall KEY CONCEPT SUMMARY KEY CONCEPT SUMMARY Microscopes allow us to see inside the cell. cytoplasm nucleus cell membrane eukaryotic cell prokaryotic cell organelle cell wall chloroplast mitochondria CHAPTER RESOURCES CHAPTER RESOURCES 15.2

18. VOCABULARY KEY CONCEPT CHAPTER HOME An organelle in a plant cell that contains chlorophyll, a chemical that uses the energy from sunlight to make sugar. chloroplast KEY CONCEPT SUMMARY KEY CONCEPT SUMMARY Microscopes allow us to see inside the cell. cytoplasm nucleus cell membrane eukaryotic cell prokaryotic cell organelle cell wall chloroplast mitochondria CHAPTER RESOURCES CHAPTER RESOURCES 15.2

19. VOCABULARY KEY CONCEPT CHAPTER HOME Organelles that release energy by using oxygen to break down sugars. mitochondria KEY CONCEPT SUMMARY KEY CONCEPT SUMMARY Microscopes allow us to see inside the cell. cytoplasm nucleus cell membrane eukaryotic cell prokaryotic cell organelle cell wall chloroplast mitochondria CHAPTER RESOURCES CHAPTER RESOURCES 15.2

20. VOCABULARY KEY CONCEPT CHAPTER HOME archaea Different cells perform various functions. SECTION OUTLINE SECTION OUTLINE The single cell of a unicellular organism does all that is necessary for the organism to survive. A multicellular organism is a community of specialized cells. Scientific models make it easier to understand cells. specialization tissue organ The tarsier has many levels of organization in its body. CHAPTER RESOURCES CHAPTER RESOURCES 15.3

21. VOCABULARY KEY CONCEPT CHAPTER HOME The specific organization of a cell and its structure that allows it to perform a specific function. specialization KEY CONCEPT SUMMARY KEY CONCEPT SUMMARY Different cells perform various functions. specialization tissue organ CHAPTER RESOURCES CHAPTER RESOURCES 15.3

22. VOCABULARY KEY CONCEPT CHAPTER HOME A group of similar cells that are organized to do a specific job. tissue KEY CONCEPT SUMMARY KEY CONCEPT SUMMARY Different cells perform various functions. specialization tissue organ CHAPTER RESOURCES CHAPTER RESOURCES 15.3

23. VOCABULARY KEY CONCEPT CHAPTER HOME A structure in a plant or an animal that is made up of different tissues working together to perform a particular function. organ KEY CONCEPT SUMMARY KEY CONCEPT SUMMARY Different cells perform various functions. specialization tissue organ CHAPTER RESOURCES CHAPTER RESOURCES 15.3

24. VOCABULARY KEY CONCEPT CHAPTER HOME I. The cell is the basic unit of living things. A. Living things are different from nonliving things. B. All living things are made of cells. 1. Louis Pasteur 2. Bacteria and Spontaneous Generation KEY CONCEPT SUMMARY KEY CONCEPT SUMMARY 1. Characteristics of Life 2. Needs of Life The cell is the basic unit of living things. unicellular multicellular organism microscope bacteria C. The microscope led to the discovery of cells. D. Cells come from other cells. E. The cell theory is important to the study of biology. CHAPTER RESOURCES CHAPTER RESOURCES 15.1

25. VOCABULARY KEY CONCEPT CHAPTER HOME II. Microscopes allow us to see inside the cell. KEY CONCEPT SUMMARY KEY CONCEPT SUMMARY A. The microscope is an important tool. 1. Structures That Process Information 2. Organelles That Provide Energy 3. Organelles That Process and Transport B. Cells are diverse. Microscopes allow us to see inside the cell. C. Plants and animals have eukaryotic cells. 4. Organelles for Storage, Recycling, and Waste cytoplasm nucleus cell membrane eukaryotic cell prokaryotic cell organelle cell wall chloroplast mitochondria CHAPTER RESOURCES CHAPTER RESOURCES 15.2

26. VOCABULARY KEY CONCEPT CHAPTER HOME III. Different cells perform various functions. A. Organisms can be classified by their cell type. B. Cells in multicellular organisms specialize. KEY CONCEPT SUMMARY KEY CONCEPT SUMMARY Different cells perform various functions. 1. Archaea and Bacteria 2. Eukarya specialization tissue organ C. A multicellular organism is a community of cells. D. Scientists use models to study cells. CHAPTER RESOURCES CHAPTER RESOURCES 15.3

27. CHAPTER HOME Image Gallery Click on the icons to see a larger image or animation. SIMULATION View cells through different types of microscopes. SIMULATION Take a virtual tour of a cell.

28. CHAPTER HOME Image Gallery BACK TO IMAGE GALLERY

29. CHAPTER HOME Image Gallery BACK TO IMAGE GALLERY

30. CHAPTER HOME Image Gallery BACK TO IMAGE GALLERY

31. CHAPTER HOME Image Gallery BACK TO IMAGE GALLERY plant cellanimal cell

32. CHAPTER HOME Image Gallery BACK TO IMAGE GALLERY archaea

33. CHAPTER HOME Image Gallery BACK TO IMAGE GALLERY

34. BACK TO CHAPTER Click on the items below to access resources on Standardized Test Practice Practice state standardized tests Resource Centers Get more information on select science topics Image Gallery Click here to view chapter images and animations Math Tutorial Review math concepts Content Review Review key concepts and vocabulary CLASSZONE.COM Chapter Resources CHAPTER HOME