Download Cell Unit Review Worksheet | Part I

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Name: ______________________________________________ Date: _________________________ Period: ______ Which organelles create proteins? ____________________________________________________________ Cell Unit Review Worksheet | Part I m. Which organelles help cells with locomotion (movement)? ________________________________________ Directions: Answer the following questions the BEST you can without any help. After you have finished, notice what you don’t know and make note of this by highlighting the question. Now use notes, etc to finish. n. Which organelle processes and transports proteins? ____________________________________________ Cell Theory 1. What invention was an early step in the discovery of cells? ____________________________________________ p. Which organelle is a network of protein fibers that supports a cell from the inside? ____________________ o. Which organelle contains digestive enzymes to break down foreign invaders? _________________________ q. Which organelle performs photosynthesis to make sugar? ________________________________________ a. Who was the first scientist to identify cells and name them? ____________________________________ r. Which two organelles are ONLY found in plant cells? _____________________ & ______________________ 2. What are the 3 major principles of the cell theory? s. Which organelle is thought to help with cell division in animal cells? ________________________________ a. ______________________________________________________________________________________ t. Which organelle is responsible for making ribosomes? ___________________________________________ b. ______________________________________________________________________________________ u. Which cell part is the internal fluid found in all cells? _____________________________________________ c. ______________________________________________________________________________________ v. Which organelle holds DNA(chromatin) and chromosomes? ________________________________________ 3. Compare and Contrast the 2 major groups of cells: w. Which cell part is made of cellulose that provides rigid support? ____________________________________ Prokaryotic Cell Characteristics Eukaryotic Cell Characteristics x. Which organelle is studded with ribosomes & is the site of protein synthesis? _________________________ z. Which organelle carries materials from one part of the cell to another? ______________________________ aa. Which organelle is a sac that stores water, sugar, waste, and/or pigments? ___________________________ bb. Which cell part is found in plant cells and is OUTSIDE the cell membrane? ____________________________ y. Which organelle breaks down alcohol and can make lipids? ________________________________________ Cell Organelles 4. Use the word blank to answer the following questions and to LABEL THE CELL below & answer the questions that follow: Cytoskeleton Vesicle Nucleus Nucleolus Rough ER Ribosome Smooth ER
Golgi apparatus (body) Cell Membrane Mitochondria Vacuole Lysosome 5. Fill in the blanks regarding the process of protein synthesis: Many organelles are involved in the process of making protein. First the ________________________ makes ribosomes, which exit through pores. The ribosomes then travel to the ______________________________. This is where ribosomes link _____________________________ to make protein. The protein then travels to the Cytoplasm Cilia/Flagella Chloroplast Cell wall Centrioles _________________________, where the proteins are packaged into ____________________________ which can transport the proteins out of the cell by fusing with the __________________________________. 6. Explain the theory of Endosymbiosis being sure to cite the evidences mentioned in class: ____________________________________________________________________________________________
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____________________________________________________________________________________________ k. Which organelle creates the energy required by cells? ____________________________________________ Cell Membrane 7. What model have scientists developed to describe the arrangement of molecules that make up a cell membrane? _________________________________________________________________________________ 8. What do the terms selective permeability and semi‐permeable have to do with the cell membrane? ____________________________________________________________________________________________ 9. Using the picture of the cell membrane, label the following: Carbohydrate chain, Embedded Protein, Protein Channel, Cholesterol, Cytoskeleton, Phospholipid (including all of its 3 major parts). 10. List a function of each type of molecule that is embedded in the phospholipid bilayer below: Molecule Cholesterol Function Transport Protein (channel) Carbohydrate 11. Which part of a phospholipid is polar? _________________________________________ 12. Which part of a phospholipid is hydrophobic? _________________________________________ 13. Which part of a phospholipid is hydrophilic? _________________________________________ 14. Which part of a phospholipid is nonpolar? _________________________________________
15. Explain in your own words: Why do the phospholipids surrounding the cell form a bilayer (why are tails in the middle)? ____________________________________________________________________________________________
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____________________________________________________________________________________________ Answer the following questions about chemical signals: 16. Any chemical signal that binds to a receptor is called a _____________________________________________. a. Give two examples: ________________________________ & ___________________________________ 17. List the two types of receptors and their characteristics: a. ______________________________:_______________________________________________________ b. ______________________________:_______________________________________________________