want to make Eukaryotic cell proteins? * Because when eukaryotic proteins are expressed in prokaryotic cells problems like been unstable‚ no biological activity and prokaryotic contaminants ( pyrogens) can occur. * Also to make the protein as natural as possible * The same expression vectors as we need for pro * We don’t need shangdolron coz that only for pro Transformation: in Eukaryotic cells: in humans means that difference in growth characters of cells‚ for example
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detailed in chapters 2-5 of your textbook. While this gives you an idea of some of the terms/phrases you are responsible for‚ not all the material we covered is included. You are responsible for everything discussed in class‚ but NOT for material in the book that was not addressed in lecture. Please do NOT assume that if you know the concepts/answers to the terms below‚ you are prepared for an exam. You need to spend time with your lecture notes‚ and prepare your own review questions in addition
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UMUC Biology 102 Lab 3: Cell Structure and Function Experiment 1: Labeling (consult the Lab 3 Introduction for more details) * * * * * * * Questions 1. For each structure identified‚ do you think its location affects its ability to function? Why or why not? (Hint: those buried deep in the cell probably do different things than those closer to the cell membrane) Everything in a cell seems to be in a position‚ size‚ etc that enables
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The cells of the adaptive immune system are special types of leukocytes‚ called lymphocytes. There are two main types of lymphocytes‚ B cells and T cells‚ which are derived from hematopoietic stem cells in the bone marrow. T cells are involved in cell-mediated immune response‚ whereas B cells are involved in the humoral immune response. The surface of each lymphatic cell has receptors that enable them to recognize foreign substances. There are two major subtypes of T cells: the helper T cell and
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Each cell can be regarded as a metabolic compartment‚ as separate place where the chemical processes of that cell occur‚ the cell is made up of different organelles each specifically designed to carry out their function‚ and this is known as a cells ultrastrucure. All cells have a cell surface membrane; these are made up of phospholipids and make up a bilayer. A phospholipid has a hydrophilic head and a hydrophobic tail which is made up of 2 fatty acid chains; these are arranged is two layers with
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1.1 Studying the Structure of Cells In 1665‚ English scientist Robert Hooke became the first person to study cells Cell Structure Nucleolus: Makes Ribosomes‚ which help to make proteins Nuclear Membrane: Protects the contents of the nucleus Nuclear Pores: Allow materials‚ such as ribosomes‚ in and out of the nucleus |Light Microscope |Electron Microscope | |Uses light source |Beams of electrons
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Cells are considered the basic units of life in part because they come in discrete and easily recognizable packages. That’s because all cells are surrounded by a structure called the cell membrane. The cell is the very smallest unit of living matter. All living things including plants and animals are made up of cells. Cells are made of atoms‚ which are the smallest units of matter. There are many different kinds of cells. The two kinds you are most likely to be familiar with are animal and plant
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92\ a.1 Eukaryotic Cell vs Prokaryotic Cell All cells can be classfied into prokaryotes and eukaryotes. Prokaryotes were the only form of life on Earth for millions of years until more complicated eukaryotic cells came into being through the process of evolution. Comparison chart All attributes Differences Similarities | Eukaryotic Cell | Prokaryotic Cell | Nucleus: | Present | Absent | Number of chromosomes: | More than one | One--but not true chromosome: Plasmids | Cell Type: | Multicellular
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Describe the cell cycle. Include in your discussion the role cyclins and CDKs play in controlling this cycle. The cell cycle is a process that cells undergo to grow‚ reproduce‚ and divide to make 2 daughter cells. The cell cycle has different stages including G1‚ S‚ G2‚ and the M phase. Also we have the G0 phase. There are checkpoints that control the transitions between the phases of the cell cycle in which the process is regulated by cyclins and cyclin-dependent kinases (CDKs). G1 is known as
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Cell Membrane Structure Phospholipids are arranged in to layers‚ called the bilayer. They only have 2 fatty acids‚ this is because the third fatty acid is replaced by a negatively charged phosphate group. The phosphate heads are polar‚ in other words attracted to water‚ therefore they are hydrophilic. The lipid tails are non-popular as they’re not attracted to water and therefore known as hydrophobic. When phospholipids are added to the water‚ they rearrange themselves so that the hydrophilic heads
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