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Name ______________________________ Class ___________________ Date __________________ Assessment STUDY GUIDE Cells: The Basic Units of Life MULTIPLE CHOICE Write the letter of the correct answer in the space provided. _____ 1. What is smallest unit that can perform all the processes necessary for life? a. cell b. nucleus c. organelle d. protist _____ 2. Which of the following statements is not part of the cell theory? a. Animals and plants share the same kinds of cells. b. All organisms are made up of one or more cells. c. The cell is the basic unit of all living things. d. All cells come from existing cells. a. archaea MATCHING b. cell membrane Match the correct definition with the correct term. Write the letter in the space provided. c. bacteria d. eukaryotes e. multicellular _____ 3.the part of the cell that keeps the cytoplasm inside and controls materials going in and out of the cell g. organelles _____ 4.structures that are usually surrounded by membranes and which perform specific functions within the cell h. prokaryote _____ 5.an organelle that contains the cell’s DNA f. nucleus _____ 6. a single-celled organism that has no nucleus or membrane-bound organelles _____ 7. the smallest and most common form of prokaryotes, containing DNA, ribosomes, and a flagellum _____ 8. prokaryotes that include such types as heat-loving, salt-loving, and methane-making _____ 9. organisms made up of cells that have a nucleus and membrane-bound organelles _____ 10.word that describes most organisms that you can see with your naked Original content Copyright © by Holt, Rinehart and Winston. Additions and changes to the original content are the responsibility of the instructor. Holt Science Technology 44 Cells: The Basic Units of Life Name ______________________________ Class ___________________ Date __________________ eye MULTIPLE CHOICE Write the letter of the correct answer in the space provided. _____ 11. What cell part supports the cell and might be made of cellulose orchitin? a. cell membrane b. cell wall c. ribosome d. nucleus _____ 12. What part of the cell forms a barrier between the cell and its environment? a. cell membrane c. ribosome b. nucleus d. cholesterol _____ 13. What part of the cell keeps the cell membrane from collapsing? a. cell wall b. cytoplasm c. cytoskeleton d. nucleus _____ 14. A cell’s nucleus contains DNA, which carries genetic material with a. ribosomes. b. the cytoskeleton. c. the endoplasmic reticulum. d. instructions for how to make protein. _____ 15. Ribosomes, the organelles that make proteins, are found on the membranes of the a. cell wall. b. endoplasmic reticulum. c. mitochondria. d. vacuoles. _____ 16. What part of the cell acts as the cell’s delivery system? a. nucleus b. nucleolus c. mitochondrion d. endoplasmic reticulum _____ 17. Energy released by a cell’s mitochondrion is stored in a. ATP. b. DNA. c. the ER. d. RNA. Original content Copyright © by Holt, Rinehart and Winston. Additions and changes to the original content are the responsibility of the instructor. Holt Science Technology 45 Cells: The Basic Units of Life Name ______________________________ Class ___________________ Date __________________ _____ 18. What cell parts carry materials between organelles such as the ER and the Golgi complex? a. ribosomes b. lysosomes c. vesicles d. vacuoles _____ 19. Larger size, longer life, and specialization are three advantages to being a a. eukaryote. b. prokaryote. c. unicellular organism. d. multicellular organism. _____ 20. Which of the following is true of each of the four levels of organization of living things? a. Each contains larger cells than the level below it. b. Each is more complex than the level below it. c. Each performs the same functions as the level below it. d. Each is more specialized than the level below it. _____ 21. The function of a part of an organism is related to a. its arrangement of cells. b. the shape of its parts. c. the structure of that part. d. its appearance under a microscope. Original content Copyright © by Holt, Rinehart and Winston. Additions and changes to the original content are the responsibility of the instructor. Holt Science Technology 46 Cells: The Basic Units of Life