Cell Structure Answer Key 2c5x

Cell Structure Answer Key 1. What is a cell? a. An animal. b. A mircoscopic structure that is the basic unit of all living things. c. A small room. d. A small structure that creates living things. 2. What is the function of the cell wall? a. Tell the cell what to do b. Lets molecules in and out c. Lets water in and out d. Gives the plant structure and 3. Which cell structure contains the cell's genetic material? a. organelle b. nucleus c. cell envelope d. cytoplasm 4. Which structure is a thin, flexible barrier around a cell? a. plasma membrane b. cell wall c. cell envelope d. cytoplasm 5. Which cell structure stores food, nutrients, and waste in the cell? a. vacuole b. cell membrane c. vaccuum d. cell body 6. What type of cells have membranes? a. Plant Cells b. Animal cell c. All Cells d. Algae Cells

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7. What are the differences between plants and animal cells? a. Animal cells have a cell wall, chloroplasts, and one large vacuole. b. Plant cells have a cell wall, chloroplasts, and one large vacuole c. Plant cells are eukaryotic, and animal cells are prokaryotic. d. Animal cells are eukaryotic, and plant cells are prokaryotic. 8. Ribosomes are found: a. on smooth endoplasmic reticulum b. in the nucleus c. on the Golgi apparatus d. on rough endoplasmic reticulum 9. This is the gel-like substance found in a cell. a. cytoplasm b. chromosomes c. vacuole 10. Which of the following organelles may be absent from eukaryotic cells? a. nucleus b. mitochondria c. plasma membrane d. chloroplast 11. Prokaryotic cells lack a. cytoplasm b. a plasma membrane c. a nucleus d. genetic material 12. A substance has to through various parts of a plant cell before reaching the nucleus. Which of the following shows the correct order of these parts? a. cell wall, cytoplasm, cell membrane b. cell wall, cell membrane, cytoplasm c. cell membrane, cell wall, cytoplasm d. cell membrane, cytoplasm, cell wall 13. Part X is missing in a cell. This results in the lack of control of the activities that take place in the cell. Part X is the a. nucleus b. cytoplasm c. chloroplast d. cell membrane 2 of 3

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14. Explain the importance of the cytoskeleton for animal cells. The cytoskeleton in eukaryotes is a network of fibers extending throughout the cytoplasm; they maintain cell shape which is important for animal cells that lack cell walls. 15. Draw a plant cell and name 7 parts of it. cell wall cell membrane nucleus nuclear membrane large vacuole containing cell sap cytoplasm chloroplast mitochondrion starch grain inside chloroplast membrane around the vacuole

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