1.) Roots support photosynthesis and respiration by absorbing minerals and water and by storing organic nutrients. They also anchor the plant. Some roots have mycorrhizae‚ which increase the surface area and therefore increase the absorption. The endodermis‚ which is the innermost layer of cells in the root cortex‚ surrounds the vascular cylinder. It is the passage of minerals from the cortex into the vascular tissue. The stem has a system of nodes where leaves are attached. They have a waxy
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partially permeable membrane in order to achieve the state of equilibrium. A partially permeable membrane acts as a barrier to some substances but allows others to penetrate through freely. Within any plant cell the cytoplasm and cell sap within the vacuoles
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Fundamentals of Science ASS 1: The structure of cells/tissues and their properties Alex Willey By Benjamin Bowles Contents Page Page 1 Contents Page Page 2 Introduction Page 3 Introduction (cont.) Page 4 Diagrams of animal cell‚ plant cell and bacteria cell Page 5 Table of Organelles Page 6 Table of differences between Prokaryotic and Eukaryotic cells Page 7 (a‚b‚c‚d) Cell drawings of onion cells and cheeks cells Page 8 Electron micrograph of an animal
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Labeled Plant Cell Plant Cell Organelles Amyloplast A major component of plants that are starchy in nature‚ the amyloplast are organelles that store starch. They are classified as plastids‚ and are also known as starch grains. They are responsible for the conversion of starch into sugar‚ that gives the starchy plants and tubers energy. Function: Synthesis and storage of starch granules Cell Membrane or Plasma Membrane The cell membrane is a thin layer made up of proteins‚ lipids‚ and
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MEDICAL IMMUNOLOGY & SEROLOGY Terence L. Eday‚ RMT‚ MT(ASCPi)‚ MPH College of Medical Technology / Medical Laboratory Science University of Perpetual Help System DALTA Historical Perspective • 1773‚ Voltaire reported on an ancient Chinese custom where dried and powdered small pox scabs were inhaled • 1798‚ Edward Anthony Jenner‚ Smallpox vaccination • 1862‚ Ernst Haekel‚ Recognition of phagocytosis • 1877‚ Paul Erlich‚ recognition of mast cells Historical Perspective • 1879‚
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Let re-learn some stuff and earn some points back. These are questions missed by most of you on the exam. You can only earn up to a maximum of 120 points total (your exam 1 score + what you earned here). One point per correctly answered question (20 points) 1. Oxidative phosphorylation requires all of the items listed below except a. ATP synthase in the correct position in the membrane. b. The flow of electrons from NADH to protein in the membrane. c. A matrix more positively charged
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Produced by cell clusters in the pancreas called the Islets of Langerhans‚ insulin is a hormone that regulates glucose concentration in the blood. It is a protein synthesised and stored by beta cells‚ which secrete it in surges responding to changes in glucose levels. (Hardin‚ Bertoni and Kleinsmith‚ 2012) Fig 1. The Pancreas and Insulin |Source: University of Maryland (2011) | | |
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Ways that plants cope with saline environments Introduction There are a lot of plants in this world managed to grow in different kind of environments by adapting to those environments in certain ways. In this essay‚ plants grow in environment with different salinity are concerned. Plants can be divided into two different groups when it comes to salinity. The first type of plants is the plants that grow and reproduce in saline environment which are called halophytes (Jefferies. 1981). Whereas
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biological material (a confounding variable). Background information Fresh beetroot tissue is used in this experiment because it contains a dark red pigment within the vacuole of its cells. The dark red pigment is betacyanin. There is also a yellow pigment called betaxanthin in the vacuole. The pigments are retained in the vacuole by a selectively permeable membrane called the tonoplast. It has a similar fluid-mosaic structure to that of the plasma membrane with protein molecules embedded in a phospholipid
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you departure‚ until four weeks after you return. According to Michael Foley‚ who is a professor at La Trube University in Australia‚ chloroquine is a dibasic drug which diffuses down the pH gradient to accumulate about a 1000-fold in the acidic vacuole of the parasite. The high intravacuole concentration of chloroquine inhibits the polymerization of haem. As a result‚ the haem‚ which is released during hemoglobin breakdown‚ builds up to poisonous levels‚ therefor killing the parasite with its own
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