Give an account of protein structure and function Protein structure 1 Proteins consist of amino acids joined together (in chains) 2 A protein is unique because of the sequence of amino acids 3 The amino acids are joined by strong peptide bonds 4 to produce the primary structure 5 Further (weak) hydrogen bonding between acids 6 produce the secondary and tertiary structures A maximum of 4 marks can be gained from this section. Protein function 7 Some proteins are enzymes + named example
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Study Guide for N124 Final Fall 2013 1.What happens physiologically in fluid volume deficit situations; how do we best keep track of a patient’s fluid volume; consequences of dehydration Ch.13 iggy -daily weights are the best indicators of fluid loss or gains pg.176 Cardiovascular- heart rate increases in attempt to maintain BP. Weak peripheral pulses pg.175 Skin changes-skin turgor poor‚ tenting‚ skin dry and scaly‚ dry mucus membranes( may be covered with a think sticky‚ pastelike coating)
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Planning Exercise Aim To investigate the effect of phosphate on cell division in root tips. Background knowledge Phosphate ions (macronutrients) are needed large amounts by plants. They are required for root growth. For the root tips cells to divide‚ mitosis has to occur. Phosphate is needed for production of ATP which provides energy for mitosis to occur. DNA replication occurs during interphase of the cell cycle. DNA is made up of nitrogen containing base‚ pentose sugar and phosphate group
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Chemistry of Life Anatomy: the study of structure or shape of body parts and their relationship to each other. Physiology: the study of function (how the parts work) Levels of structural organization: There is a hierarchy of structural complexity‚ beginning with the simplest or chemical level and culminating with the highest level-the whole organism Chemical level – atoms (and their parts)‚ and combinations of atoms called molecures Cellular level – cells are the basic structural and functional
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following is not considered an accessory organ of the digestive system: a. Stomach Children have (__) deciduous teeth and adults have (__) permanent teeth. a. 20‚ 32 The folds in the stomach are called: a. Rugae The energy source preferred by cells is: a. Glucose The (__) is a worm-shaped structure projecting from the right side of the large intestine. a. Appendix The layers of the gastrointestinal tract wall from the inside in order are: 1. Mucosa 2. Submucosa 3. Muscularis 4. Serosa
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Extraction and Analysis of Plasmid DNA from E. coli Cells Introduction A plasmid is an extra-chromosomal element‚ often a circular DNA. Since a plasmid is by definition an extra-chromosomal element‚ it cannot make use of any origin of DNA replication in a chromosome (BP site). Meaning that DNA synthesis within a plasmid depends on having an origin of DNA synthesis of its own. Plasmids are often found in bacterial cells‚ in which they are used as transfer agents for transmitting various antibiotic
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Biology Midterm Outline Topics: * Topic One: Chemistry of Living Things (p2-4) * Topic Two: The Cell (p5-6) * Topic Seven: Evolution (p23-27) * Topic Ten: State Labs (37-40) Topic One: Chemistry of Living Things I. All living things must maintain homeostasis in order to stay alive. A) Homeostasis: A balanced state in an organism’s body. B) Failure to maintain homeostasis results in disease or death. C) Homeostasis is often maintained using feedback mechanisms. 1. Feedback mechanisms
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A DNA strand contains a complete representation of everything about our physiology. It also contains instructions on how to form our body by repeated divisions of a single cell. Each cell needs to know when it should‚ split into two‚ split into different kinds of cell for tissue differentiation. Cells also need to know when to stop growing because the body or organ is mature‚ and when it needs to replace tissue lost by injury. All of that is encoded into one molecule. So in other words the benefit
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Every living organism is made of cells. Every cell has a nucleus‚ and every nucleus has chromosomes. Human beings have 46 chromosomes or 23 chromosome pairs and each chromosome contains hundreds of genes. These genes contain the recipes‚ for proteins that make most of the body. Structural proteins form things such as skin‚ hair‚ and muscle. These chromosomes are very long compact coils of DNA (Deoxyribonucleic Acid) that store all the information that the body inbeds such as how one looks and functions
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BIOL 112 Combined Study Guides for Exam – Fall 2012 Chapter 22 Study Guide 1. Briefly describe contributions of the following to Darwin: a. Aristotle: species are fixed and unchanging‚ recognized several affinities‚ or similarities among organism. Life arranged on ladder‚ most complex to least. Each form is perfected. i. In line w/ old testament view of creation b. Linneaus: developed binomial nomenclature system‚ nested classification system (KPCOFGS). Did not ascribe
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