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Name ______________________________ Class ___________________ Date __________________ Skills Worksheet Section 1-2(C) Section: Eukaryotic Cells CELL WALL 1. What is the function of a cell wall? _______________________________________________________________ 2. What are the cell walls of plants and algae made of? _______________________________________________________________ 3. What are the cell walls of fungi made of? _______________________________________________________________ CELL MEMBRANE 4. What is a cell membrane? _______________________________________________________________ _______________________________________________________________ _______________________________________________________________ 5. What are three types of compounds contained in the cell membrane? (3 points) _______________________________________________________________ _______________________________________________________________ 6. What two substances control the movement of materials into and out of the cell? (2 points) _______________________________________________________________ _______________________________________________________________ CYTOSKELETON _____ 7. A web of proteins in the cytoplasm is known as the a. phospholipid. c. cell membrane. b. cytoskeleton. d. organelle. 8. What are the two functions of the cytoskeleton? (2 points) _______________________________________________________________ _______________________________________________________________ _______________________________________________________________ Original content Copyright © by Holt, Rinehart and Winston. Additions and changes to the original content are the responsibility of the instructor. Holt Science and Technology 4 Cell: The Basic Units of Life Name ______________________________ Class ___________________ Date __________________ NUCLEUS ____ 9.What is the genetic material contained inside a cell’s nucleus? a. protein c. DNA b. lipids d. nucleolus _____ 10. The function of proteins in a cell is to a. control chemical reactions. c. cover the nucleus. b. store genetic information. d. copy messages from DNA. _____ 11. What is the nucleolus? a. the opposite of the nucleus b. another name for DNA c. a network of fibers in the cytoplasm d. a dark area of the nucleus that stores materials and begins to make ribosomes RIBOSOMES 12. Organelles that make proteins are called ______________________. 13. Proteins are made of ______________________. ENDOPLASMIC RETICULUM 14. A system of folded membranes in which proteins, lipids, and other materials are made is the ______________________. 15. Two forms of endoplasmic reticulum are ________________________and ______________________. MITOCHONDRIA _____ 16. What function does a mitochondrion perform? a. It breaks down sugar to produce energy. b. It makes proteins. c. It breaks down toxic materials. d. It stores material used to make ribosomes. 17. The site of cellular respiration is the ______________________. 18. Energy produced in mitochondria is stored in a substance called ______________________. Original content Copyright © by Holt, Rinehart and Winston. Additions and changes to the original content are the responsibility of the instructor. Holt Science and Technology 5 Cell: The Basic Units of Life Name ______________________________ Class ___________________ Date __________________ CHLOROPLASTS ___ 19.Chloroplasts are organelles that are found in the cells of a. animals. c. mitochondria. b. plants and algae. d. all eukaryotic cells. ___ 20.Which process happens inside a chloroplast? a. production of ATP c. photosynthesis b. production of DNA d. formation of animal cells ___ 21.Chloroplasts are green because they contain a. sugar. c. chlorophyll. b. proteins. d. DNA. GOLGI COMPLEX ___ 22.The function of the Golgi complex is to a. produce sugar and water. b. package and deliver proteins. c. produce oxygen. d. trap energy from the sun. CELL COMPARTMENTS 23. A small sac that surrounds material to be moved into or out of a cell is a(n). ______________________ CELLULAR DIGESTION 25. What is the function of lysosomes? _______________________________________________________________ _______________________________________________________________ 26. What function do vacuoles perform in plant and fungal cells? _______________________________________________________________ _______________________________________________________________ Skills Worksheet Original content Copyright © by Holt, Rinehart and Winston. Additions and changes to the original content are the responsibility of the instructor. Holt Science and Technology 6 Cell: The Basic Units of Life Name ______________________________ Class ___________________ Date __________________ Section 1-2(C) CRITICAL THINKING 4. .Making Comparisons Describe three ways in which plant cells differ from animal cells. (3 points) a. _____________________________________________________________ b. _____________________________________________________________ c. _____________________________________________________________ 6. .Predicting Consequences A certain virus attacks the mitochondria in cells. What would happen to a cell if all of its mitochondria were destroyed? _______________________________________________________________ _______________________________________________________________ INTERPRETING GRAPHICS Use the diagram below to answer the questions that follow. 8. Is this a diagram of a plant cell or an animal cell? _______________________________________________________________ _______________________________________________________________ 9. What organelle does the letter B refer to? _______________________________________________________________ _______________________________________________________________ Original content Copyright © by Holt, Rinehart and Winston. Additions and changes to the original content are the responsibility of the instructor. Holt Science and Technology 7 Cell: The Basic Units of Life Name ______________________________ Class ___________________ Date __________________ Assessment Section 1-2 (C) Section: Eukaryotic Cells Match the correct definition with the correct term. Write the letter in the space provided. _____ 1. a rigid structure that gives support to a cell _____ 2. a barrier that encloses and protects the cell _____ 3. a web of proteins in the cytoplasm that keeps a cell’s membrane from collapsing a. cell membrane b. cell wall c. chloroplasts d. cytoskeleton e. endoplasmic reticulum f. Golgi complex _____ 4. a large organelle that produces and stores the cell’s DNA g. lysosomes _____ 5. organelles that make proteins h. mitochondrion _____ 6. a system of folded membranes that functions as the internal delivery system of acell i. nucleus j. ribosomes _____ 7. an organelle that functions as the main power source of a cell, breaking down sugar to produce energy _____ 8. organelles in which photosynthesis takes place _____ 9. the organelle that packages and distributes proteins _____ 10. organelles that contain digestive enzymes Original content Copyright © by Holt, Rinehart and Winston. Additions and changes to the original content are the responsibility of the instructor. Holt Science and Technology 8 Cell: The Basic Units of Life Name ______________________________ Class ___________________ Date __________________ Skills Worksheet Section 1-2 (C) Building a Eukaryotic Cell Complete this worksheet after you finish reading the section “Eukaryotic Cells.” Below is a list of the features found in eukaryotic cells. Next to each feature, write P if it is a feature found only in plant cells and a B if it is a feature that can be found in both plant and animal cells. _____ 1. endoplasmic reticulum _____ 7. Golgi complex _____ 2. mitochondria _____ 8. cell wall _____ 3. nucleus _____ 9. vesicles _____ 4. cell membrane _____10. DNA _____ 5. cytoplasm _____11. nucleolus _____ 6. ribosomes _____12. chloroplasts In the space provided, label the structures of the eukaryotic cell drawn below. Include only the structures that you labeled B above. Original content Copyright © by Holt, Rinehart and Winston. Additions and changes to the original content are the responsibility of the instructor. Holt Science and Technology 9 Cell: The Basic Units of Life