BIOLOGY SYNOPTIC ESSAY – UNIT 5 – JUNE 13 THE MEMBRANES OF DIFFERENT TYPES OF CELLS ARE INVOLVED IN MANY DIFFERENT FUNCTIONS – 25 MARKS Membranes are found in all organisms‚ around and within cells. They control the movements in and out of cells‚ as well as protecting cells. They also allow different functions to occur. They have the same basic structure called the plasma membrane. All plasma membranes‚ around or inside cells have a same phospholipid bilayer structure. Phospholipids contribute to
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covers‚ protects‚ supports and shapes the cell. The capsule has a gel-like coating outside cell wall. The animal cell and plant cell structures are structurally different. There are many organelles are membranous‚ such as the nucleolus‚ endoplasmic reticulum‚ Golgi apparatus‚ vacuoles and vesicles‚ lysosomes‚ peroxisome‚ mitochondrion‚ and chloroplast. The unique structures between the two: plant cells- large central vacuole‚ cell wall‚ chloroplast; animal cell- small vacuoles‚ and centrioles.
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Topic 1 – Introduction 1. Definitions: anatomy‚ physiology‚ palpation‚ auscultation‚ percussion‚ homeostasis‚ negative feedback loop‚ positive feedback loop‚ intracellular fluid‚ extracellular fluid‚ interstitial fluid‚ anatomical position‚ supine position‚ prone position‚ (frontal or coronal‚ transverse‚ sagittal‚ midsagittal‚ parasagittal‚ oblique sections or planes)‚ cell‚ tissue‚ organ‚ organ system‚ serous membranes (distinguish between visceral and parietal layers)‚ pericardium‚ pleura‚ peritoneum
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Hello everyone! I hope you had a wonderful weekend. We are going to start class today talking about cells. Believe it or not‚ each and every one of you came in contact with cells over the weekend. The most important thing to remember is this: cells make up living things. They make up us‚ our families‚ our dogs‚ and even the trees that provide shade to your front yard. Today we are going to focus on the cells that make up our bodies. Your skin‚ brain‚ muscles‚ bones‚ and every other part of your body
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determine where secretory proteins are synthesized‚ Palade incubated slices of pancreatic tissue in radioactive amino acids for a short time period. By doing this‚ Palade & Jamieson found that the site of synthesis of secretory proteins is the endoplasmic reticulum. To follow the path of secretory proteins‚ the researchers furthered their experiment. They did this by washing the tissue and transferred it to a medium of unlabeled amino acids. This method is a “pulse-chase.” The pulse is the incubation
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BIO 101 – HUMAN BIOLOGY Midterm Exam I – Fall 2007 Please fill in your name and (SOLAR) ID number on your answer sheet before starting. Do not write anything under the column marked birthdate!!!!! Keep the opscan sheet that came with your test and do not use ANY other opscan form or you risk a misgrading. Answers to the multiple choice questions must be filled in on the answer sheet with a #2 pencil. There are 40 multiple choice questions. Answer sheets will be collected when time is called at 8:10
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Part I: Biotechnology Bio – “life”; Techno – “tools”; ologoy – “the study of” The use of living systems and organisms to develop or make useful products Any technological application that uses biological systems‚ living organisms or derivatives thereof‚ to make or modify products or processes for specific use It is an interdisciplinary field merging basic sciences‚ applied science‚ and engineering Branches of Biotechnology a. Bioinformatics – an interdisciplinary field addresses biological problems
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they appeared around 3.5 billion year ago and the Eukaryotic appear around 2.1 billion year after (Campbell Essential Biology‚ 2012). The eukaryotic structure consists of the following organelle which includes mitochondria‚ chloroplast‚ the endoplasmic reticulum‚ the Golgi apparatus‚ lysosomes and nucleus. These organelles perform a specific function that help the cell survive. The organelles are separated from the rest of the cellular space by a membrane; it is like having a separated room in a home
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Chloe Troulan 1. In the table below‚ compare prokaryote and eukaryote cells. Prokaryote Eukaryote 70S (small) ribosomes The nucleoid is naked DNA No mitochondria Cell parts The cell parts float in the cytoplasm Under 10 micrometers in diameter 80S (large) ribosomes True nucleus contains DNA Mitocondria Organelles in discrete membranes Internal membranes enclose organelles 10-15µm in diameter 2. What is the literal meaning of the term eukaryote? The term ‘eukaryote’ means “true
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Prokaryotic cells vs. Eukaryotic cells Two Fundamentally Different Classes of Cells charcteristic Prokaryotic Cells Eukaryotic Cells word origins pro=before karyon=kernel or nucleus eu=true karyon=kernel or nucleus Domains of Bacteria 1. archaea or archaebacteria‚ more ancient in soil and water also in hostile environments‚ many without oxygen high salt/brine methanogens halophiles thermoacidophiles hot acidic springs 2. bacteria or eubacteria‚ more
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