参考习题 CHAPTER 1 INTRODUCTION TO CELL BIOLOGY 1. What does cell biology concern? 2. Why we saythe cell is a complex system? 4. What are the contemporary views on cell biology? 5. What cause cell diversity? 6. How many modern techniques are employed in cell biology research? CHAPTER 2 CHEMICAL COMPONENTS OF CELLS 1. What is the polar covalent bond? 2. How water is held together? 3. How do sugars play roles in cells? 4. What are roles of lipids in cells? 5.What are functions of proteins in the body ChAPTER 3 BIOMEMBRANE: STRUCTURE AND TRANSPORT 1. When viewed by electron microscopy, the lipid bi layer is often described as looking like a railroad track. Explain how the structure of the bilayer creates this image 2. Biomembranes contain many different types of lipid molecules. What are the three main ty pes of lipid molecules found in biomembranes How are the three types similar, and how are the 3. Lipid bilayers are considered to be two-dimensional fluids; what does this mean? What drives the moveme nt of lipid molecules and proteins within the bilayer How can such movement be measured? What factors affect the degree of membrane fluidity? 4. Explain the following statement The structure of all biomembranes depends on the chemical properties of phospholipids, whereas the function of each specific biomembrane depends on the pecific proteins associated with that membrane 5. Name the three groups into which membrane -associated proteins may be classified. Explain the mechanism by which each group associates with a biomembrane 6. One of the defining features of eukaryotic cells is the presence of organelles. What are the major organelles of eukaryotic cells, and what is the function of each? What is the cyt osol? What cellular processes occur within the cytosol? 7. Compare the features distinguish uniport transport from passive diffusion CHAPTER 4 INTRACELLULAR COMPARTMENTS AND TRANSPORT 1. What are the main functions of membrane -enclosed organelles in a typical eucaryotic cell 2. How proteins synthesized at the ribosomes are transported to various organelles? 3. How do the clathrin-coated vesicles specifically select cargo molecules? 4. What is the difference between the N-linked and o-linked glycosylation? 5. How is the cholesterol taken by cells?参考习题 CHAPTER 1. INTRODUCTION TO CELL BIOLOGY 1.What does cell biology concern? 2.Why we say the cell is a complex system? 3.What is cell theory? 4.What are the contemporary views on cell biology? 5.What cause cell diversity? 6.How many modern techniques are employed in cell biology research? CHAPTER 2 CHEMICAL COMPONENTS OF CELLS 1. What is the polar covalent bond? 2. How water is held together? 3. How do sugars play roles in cells? 4.What are roles of lipids in cells? 5.What are functions of proteins in the body? CHAPTER 3 BIOMEMBRANE: STRUCTURE AND TRANSPORT 1. When viewed by electron microscopy, the lipid bilayer is often described as looking like a railroad track. Explain how the structure of the bilayer creates this image. 2. Biomembranes contain many different types of lipid molecules. What are the three main types of lipid molecules found in biomembranes? How are the three types similar, and how are they different? 3. Lipid bilayers are considered to be two-dimensional fluids; what does this mean? What drives the movement of lipid molecules and proteins within the bilayer? How can such movement be measured? What factors affect the degree of membrane fluidity? 4. Explain the following statement: The structure of all biomembranes depends on the chemical properties of phospholipids, whereas the function of each specific biomembrane depends on the specific proteins associated with that membrane. 5. Name the three groups into which membrane-associated proteins may be classified. Explain the mechanism by which each group associates with a biomembrane. 6. One of the defining features of eukaryotic cells is the presence of organelles. What are the major organelles of eukaryotic cells, and what is the function of each? What is the cytosol? What cellular processes occur within the cytosol? 7. Compare the features distinguish uniport transport from passive diffusion. CHAPTER 4 INTRACELLULAR COMPARTMENTS AND TRANSPORT 1.What are the main functions of membrane-enclosed organelles in a typical eucaryotic cell? 2.How proteins synthesized at the ribosomes are transported to various organelles? 3.How do the clathrin-coated vesicles specifically select cargo molecules? 4.What is the difference between the N-linked and O-linked glycosylation? 5.How is the cholesterol taken by cells?