Introduction to Biochemistry Biochemistry : a multidisciplinary science that explores the chemistry of living organisms and molecular basis for changes occurring in living cells. Principal areas of Biochemistry 1. Struture and Function of Biomolecules Based on structure depend the function (structure function relationship) Example: Hemoglobin S differs from regular adult hemoglobin (hemoglobin A) by just one single amino acid. A valine replaces a glutamine in the 6th position of the beta
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Molecular Biology Lab Report Mapping DNA using Restriction Enzymes Ava II and Pvu II to cut Bacterial DNA Abstract The objective of this project is to map bacterial DNA‚ which is derived from E. coli‚ using restriction endonucleases with gel electrophoresis. The DNA fragments‚ after cutting has occurred‚ are separated using agarose gel electrophoresis. The DNA fragments are placed in the gel‚ and an electric current is run through the matrix of the gel-like agarose. Migration of the fragments
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The Action of Naturally Occurring Toxins and Medicines It is important to classify toxins and medicines (drugs) in order to understanding the mechanism and function of each one of them. By doing so‚ it is also possible to increase their values by altering their mechanism (e.g. converting toxins to drugs) to cure diseases and improve human health. Therefore in this review‚ the mode of action of several toxins and drugs as well as their effects on human body will be discussed. 1. Cobratoxin Cobratoxin
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Western Mindanao State University College of Science and Mathematics Zamboanga City Group No.: 02 Date Performed: April 21‚ 2014 Group Members: Date Submitted: April 25‚ 2014 Reales‚ Pharra Anthea O. Pendergat‚ Ellyssa Mae A. Pedroza‚ Rikko Jeremy C. Dinorog‚ Ivy Mae V. BIO 101 LABORATORY Activity No.: 4 Movements of Materials Across Membrane I. INTRODUCTION Many important reactions and processes in materials occur by the motion of atoms in the solid (transport)‚ which happens
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Nucleus- The nucleus is the control center of the cell. This is where DNA is contained. This is like the town hall or the mayor’s office because it is the control center of a town. The nucleus uses DNA like a city uses blueprints to direct the production of protein. Nucleolus- The nucleolus is where ribosome is made and is rich in RNA content. It is located inside the nucleus. A mayor is like this because the mayor makes everything in the town happen. He also works from the town hall‚ or works
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with other material cells I.a.i. Have Ribosomes I.a.i.1. Where proteins are made and mRNA I.a.i.2. Smaller than Eukaryotes Ribosomes (works the same) I.a.i. Cytoskeleton in Prokaryotes and Eukaryotes I.a.ii. Tubulin -protein that makes up microtubules I.a.i.1. FstZ I.a.i.1.a. Found in all Prokaryotes and in chloroplasts in plant cells I.a.i.1.b. Used in cell division
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Cell Organelles Nucleus Its function is to control the cell’s activities and retain the chromosomes. The nucleus is bound by a double membrane‚ the nuclear envelope. The nuclear envelope has pores in it to allow the transport of mRNA. The cytoplasm like material is called nucleoplasm which contains chromatin (coils of DNA and histone proteins)‚ it is chromatin that condenses to form chromosomes during cell division. Within the nucleus is a small spherical body called the nucleolus which
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New cells arise by division of existing cells Cell division occurs in the nucleus of eukaryotic cells by mitosis and meiosis Replacement of the entire lining of your small intestine Liver cells only divide for repairing Nerve cells do not divide Chromosomes Long and thin for replication and decoding Become short and fat prior mitosis → easier to separate due to compact form Meiosis (reduction division) During the production of sex cells (gametes) in animals In spore formation which precedes
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a schoo Chapter 35 The Plant Body 1. Describe and compare the three basic organs of vascular plants. Explain how these basic organs are interdependent. The three basic organs of a vascular plant are the stems‚ leaves‚ and roots. The stems consist of nodes‚ where leaves attach‚ and internodes between the nodes. The stem is responsible for elongation of the plant and acts as a central axis for other organs to attach to. The roots help to anchor the plant as well as absorb water and nutrients
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Bio 115 Exam 1 Study Guide These topics will be on the exam. ▪ What are the tenets of cell theory? • Cells are the basic structural and physiological units of all living organisms. • Cells are both distinct entities and building blocks of more complex organisms. OR • All living organisms are composed of one or more cells‚ Cells are the basic units of structure and function in an organism‚ and Cells come only from the reproduction of existing
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