Pre-AP Biology
Chapter 7 Cell Structure and Function
Section Review 7-1
1. living things 2. structure; function 3. existing cells 4. nucleus; prokaryotes 5. organelles
6. prokaryotic cell 7. eukaryotic cell 8. The giant amoeba is 5000 times larger than the smallest bacterium. 9. Prokaryotic and eukaryotic cells carry out the functions required for living, and both contain cytoplasm as well as cell membranes. Eukaryotic cells contain organelles and have a nucleus, whereas prokaryotic cells do not. 10. Eukaryotic; the cells of all multicellular living things, including humans, are eukaryotic. Section Review 7-2
1. b 2. g 3. a 4. c 5. f 6. d 7. e 8. Chloroplasts store energy in food molecules. Mitochondria release the energy stored in food molecules. Plants need chloroplasts and mitochondria because they require both functions. 9. Possible student answer: One function of lysosomes is to remove debris that might clutter a cell. This is analogous to the work a cleanup crew in a factory might perform. 10. A plant cell has cell walls and chloroplasts, structures not found in animal cells. An animal cell has the unique structures of lysosomes.
Section Review 7-3
ANSWER KEY
most of the dribbling and another player to do most of the rebounding. 9. The tongue can move and taste, so it must have muscle and nervous tissue. A group of different tissues, like a tongue, is called an organ. 10. Tissues and organs are different levels of organizations in a multicellular organism. A tissue is a group of similar cells that performs a particular function, whereas an organ consists of groups of tissues that work together.
Chapter Vocabulary Review
1. c 2. i 3. f 4. h 5. j 6. e 7. a 8. d 9. b 10. g
11. a 12. c 13. d 14. b 15. c 16. ribosome
17. rough endoplasmic reticulum 18. Golgi apparatus 19. Mitochondrion 20. chromosomes 21. diffusion 22. selective permeability 23. osmosis 24. facili-tated diffusion 25. active transport
Enrichment
1. Morphogenesis
Section Review 7-1
1. living things 2. structure; function 3. existing cells 4. nucleus; prokaryotes 5. organelles
6. prokaryotic cell 7. eukaryotic cell 8. The giant amoeba is 5000 times larger than the smallest bacterium. 9. Prokaryotic and eukaryotic cells carry out the functions required for living, and both contain cytoplasm as well as cell membranes. Eukaryotic cells contain organelles and have a nucleus, whereas prokaryotic cells do not. 10. Eukaryotic; the cells of all multicellular living things, including humans, are eukaryotic. Section Review 7-2
1. b 2. g 3. a 4. c 5. f 6. d 7. e 8. Chloroplasts store energy in food molecules. Mitochondria release the energy stored in food molecules. Plants need chloroplasts and mitochondria because they require both functions. 9. Possible student answer: One function of lysosomes is to remove debris that might clutter a cell. This is analogous to the work a cleanup crew in a factory might perform. 10. A plant cell has cell walls and chloroplasts, structures not found in animal cells. An animal cell has the unique structures of lysosomes.
Section Review 7-3
ANSWER KEY
most of the dribbling and another player to do most of the rebounding. 9. The tongue can move and taste, so it must have muscle and nervous tissue. A group of different tissues, like a tongue, is called an organ. 10. Tissues and organs are different levels of organizations in a multicellular organism. A tissue is a group of similar cells that performs a particular function, whereas an organ consists of groups of tissues that work together.
Chapter Vocabulary Review
1. c 2. i 3. f 4. h 5. j 6. e 7. a 8. d 9. b 10. g
11. a 12. c 13. d 14. b 15. c 16. ribosome
17. rough endoplasmic reticulum 18. Golgi apparatus 19. Mitochondrion 20. chromosomes 21. diffusion 22. selective permeability 23. osmosis 24. facili-tated diffusion 25. active transport
Enrichment
1. Morphogenesis