The Cellular Level of Organization

1644 WordsSep 17, 20117 Pages
Chapter 3: The Multiple Choice 1. a. b. c. d. e. 2. a. b. c. d. e. 3. a. b. c. d. Cellular Level of Organization What are the three main parts of a eukaryotic cell? Plasma membrane, organelles, cytoplasm Plasma membrane, organelles, nucleus Plasma membrane, cytoplasm, organelles Plasma membrane, cytoplasm, nucleus Plasma membrane, cytosol, organelles Plasma membranes consist of what three components? Phospholipids, glycoproteins, water Proteins, cholesterol, fatty acids Cholesterol, fatty acids, glycolipids Proteins, phospholipids, cholesterol Water, proteins, fatty acids What are the nonpolar parts of a phospholipid? Head group Tail group Both are nonpolar Neither are nonpolar 4. This is the only polar portion of a cholesterol…show more content…
peroxisomes mitochondria proteasome ribosomes lysosomes Proteasomes Perform extracellular digestion Perform autophagy Perform autolysis Degrade faulty cellular proteins Degrade ATP Mitochondria move the cell generate ATP produce proteins oxidize organelles Houston Community College Page 4 31. a. b. c. d. e. 32. a. b. c. d. e. 33. a. b. c. d. e. Which of the following protects the contents of the nucleus? Nucleic acids nuclear membrane nuclear centrosome cilia golgi apparatus What is the major function of a histone protein? For helix shape Adds a charge to DNA Help organize coiling of DNA Degrade proteins Enzymatic effect This is a long molecule of DNA that contains genes. There are 46 in each body cell. chromatin chromatid chromosome centromere centrosome 34. This is the set of rules that, relating the base triplet sequence of DNA to the corresponding codons of RNA, specifies a sequence of amino acids. a. gene expression b. genomics c. anticodons d. genetic code e. protein synthesis 35. This binds to an amino acid and holds it in place on a ribosome until it is incorporated into a protein during translation. a. mRNA b. rRNA c. tRNA d. DNA 36. a. b. c. d. 37. a. b. c. d. e. 38. a. b. c. d. e. Dr. D. This portion of a DNA segment does not code for a protein. RNA Intron Exon Polyribosome This process is division of the cytoplasm. mitosis meiosis cytokinesis cytosol centrioles During which
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