tailieunhanh - Lecture Campbell biology: Concepts and connections (Seventh edition) - Chapter 5: The working cell

Lecture Campbell biology: Concepts and connections (Seventh edition) - Chapter 5: The working cell. The main contents of this chapter include all of the following: Membrane structure and function, energy and the cell, how enzymes function. | Chapter 5 The Working Cell 0 Introduction Some organisms use energy-converting reactions to produce light in a process called bioluminescence. Many marine invertebrates and fishes use bioluminescence to hide themselves from predators. Scientists estimate that 90% of deep-sea marine life produces bioluminescence. The light is produced from chemical reactions that convert chemical energy into visible light. © 2012 Pearson Education, Inc. Figure Chapter 5: Big Ideas Membrane Structure and Function Energy and the Cell How Enzymes Function Cellular respiration Figure Chapter 5: Big Ideas Figure Figure Bioluminescent Squid Introduction Bioluminescence is an example of the multitude of energy conversions that a cell can perform. Many of a cell’s reactions take place in organelles and use enzymes embedded in the membranes of these organelles. This chapter addresses how working cells use membranes, energy, and enzymes. © 2012 Pearson Education, Inc. | Chapter 5 The Working Cell 0 Introduction Some organisms use energy-converting reactions to produce light in a process called bioluminescence. Many marine invertebrates and fishes use bioluminescence to hide themselves from predators. Scientists estimate that 90% of deep-sea marine life produces bioluminescence. The light is produced from chemical reactions that convert chemical energy into visible light. © 2012 Pearson Education, Inc. Figure Chapter 5: Big Ideas Membrane Structure and Function Energy and the Cell How Enzymes Function Cellular respiration Figure Chapter 5: Big Ideas Figure Figure Bioluminescent Squid Introduction Bioluminescence is an example of the multitude of energy conversions that a cell can perform. Many of a cell’s reactions take place in organelles and use enzymes embedded in the membranes of these organelles. This chapter addresses how working cells use membranes, energy, and enzymes. © 2012 Pearson Education, Inc. MEMBRANE STRUCTURE AND FUNCTION © 2012 Pearson Education, Inc. Membranes are fluid mosaics of lipids and proteins with many functions Membranes are composed of a bilayer of phospholipids with embedded and attached proteins, in a structure biologists call a fluid mosaic. © 2012 Pearson Education, Inc. Membranes are fluid mosaics of lipids and proteins with many functions Many phospholipids are made from unsaturated fatty acids that have kinks in their tails. These kinks prevent phospholipids from packing tightly together, keeping them in liquid form. In animal cell membranes, cholesterol helps stabilize membranes at warmer temperatures and keep the membrane fluid at lower temperatures. © 2012 Pearson Education, Inc. Figure Fibers of extracellular matrix (ECM) Enzymatic activity Phospholipid Cholesterol CYTOPLASM CYTOPLASM Cell-cell recognition Glycoprotein Intercellular junctions Microfilaments of cytoskeleton ATP Transport Signal transduction Receptor .

• Sinh học
• Campbell biology
• Lecture Campbell biology
• Biological sciences
• Systems biology
• Membrane structure
• Enzymes function
• Molecular biology
• Molecular biology of the gene
• Study of biology
• Exploring life
• Chemical basis of life
• Chemical bonds
• Molecules of cells
• Organic compounds
• Endomembrane system
• Energy converting organelles
• Cellular respiration
• Stages of cellular respiration
• Solar energy
• Chemical energy
• Cellular basis of reproduction
• Cell division
• Patterns of inheritance
• Mendels laws
• Gene expression
• Control of gene expression
• Mendel's laws