tailieunhanh - Lecture Campbell biology (9th edition) - Chapter 6: A tour of the cell
This chapter presents the following content: Biologists use microscopes and the tools of biochemistry to study cells, eukaryotic cells have internal membranes that compartmentalize their functions, the eukaryotic cell's genetic instructions are housed in the nucleus and carried out by the ribosomes, the endomembrane system regulates protein traffic and performs metabolic functions in the cell,. | A Tour of the Cell Chapter 6 Overview: The Fundamental Units of Life All organisms are made of cells The cell is the simplest collection of matter that can be alive Cell structure is correlated to cellular function All cells are related by their descent from earlier cells © 2011 Pearson Education, Inc. For the Discovery Video Cells, go to Animation and Video Files. Concept : Eukaryotic cells have internal membranes that compartmentalize their functions The basic structural and functional unit of every organism is one of two types of cells: prokaryotic or eukaryotic Only organisms of the domains Bacteria and Archaea consist of prokaryotic cells Protists, fungi, animals, and plants all consist of eukaryotic cells © 2011 Pearson Education, Inc. Comparing Prokaryotic and Eukaryotic Cells Basic features of all cells Plasma membrane Semifluid substance called cytosol Chromosomes (carry genes) Ribosomes (make proteins) © 2011 Pearson Education, Inc. Prokaryotic cells are . | A Tour of the Cell Chapter 6 Overview: The Fundamental Units of Life All organisms are made of cells The cell is the simplest collection of matter that can be alive Cell structure is correlated to cellular function All cells are related by their descent from earlier cells © 2011 Pearson Education, Inc. For the Discovery Video Cells, go to Animation and Video Files. Concept : Eukaryotic cells have internal membranes that compartmentalize their functions The basic structural and functional unit of every organism is one of two types of cells: prokaryotic or eukaryotic Only organisms of the domains Bacteria and Archaea consist of prokaryotic cells Protists, fungi, animals, and plants all consist of eukaryotic cells © 2011 Pearson Education, Inc. Comparing Prokaryotic and Eukaryotic Cells Basic features of all cells Plasma membrane Semifluid substance called cytosol Chromosomes (carry genes) Ribosomes (make proteins) © 2011 Pearson Education, Inc. Prokaryotic cells are characterized by having No nucleus DNA in an unbound region called the nucleoid No membrane-bound organelles Cytoplasm bound by the plasma membrane © 2011 Pearson Education, Inc. Fimbriae Bacterial chromosome A typical rod-shaped bacterium (a) Nucleoid Ribosomes Plasma membrane Cell wall Capsule Flagella A thin section through the bacterium Bacillus coagulans (TEM) (b) m Figure Figure A prokaryotic cell. Eukaryotic cells are characterized by having DNA in a nucleus that is bounded by a membranous nuclear envelope Membrane-bound organelles Cytoplasm in the region between the plasma membrane and nucleus Eukaryotic cells are generally much larger than prokaryotic cells © 2011 Pearson Education, Inc. The plasma membrane is a selective barrier that allows sufficient passage of oxygen, nutrients, and waste to service the volume of every cell The general structure of a biological membrane is a double layer of phospholipids © 2011 Pearson Education, Inc. Figure Outside of cell .
đang nạp các trang xem trước
