AQA GCSE Biology – Unit 2 summary notes AQA GCSE Biology Summary Notes For Unit B2 Exam Tuesday th May 13 2014 Page 1 AQA GCSE Biology – Unit 2 summary notes B2.1 Cells and Cell Structures Summary All living things are made up of cells. The structures of different types of cells are related to their functions. To get into or out of cells, dissolved substances have to cross the cell membranes. Cells Cells are the smallest unit of life. All living things are made of cells. Most human cells
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| | |Membrane Potential | | |The Action Potential | |The Nervous System II |Ion Channels | |
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Comparative Test Brand Rank Weight Price (in gm.) (in `) potato Chips Bingo Parle Lays Haldirams Pringles Uncle Chips 1 2 3 4 5 6 7 8 9 1 3 4 66 84 63 66 182 72 200 60 18 130 110 120 150 20 20 20 15 122 20 42 10 5 20 15 20 20 Branded Chips & Snacks Stay within Munching limits! Bikano Balaji Diamond Snack Food Kurkure Bikano Chatex Parle Fulltoss Haldiram’sTakatak 2 Branded chips and snacks have become part of the daily diet for rural and urban kids in india. Working parents prefer
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Molecules, Biodiversity, Food and Health Biological Molecules Biological Molecules (a) describe how hydrogen bonding occurs between water molecules, and relate this, and other properties of water, to the roles of water in living organisms; Water is a polar molecule. This is because the oxygen atom pulls the shared electrons towards it, meaning that water is slightly negatively charged at the oxygen and positively charged at the hydrogen ends, so they can form hydrogen bonds with each other
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Chapter 33: Animal Nutrition * Nutrition: food is taken in, taken apart, and taken up * Herbivores (plants or algae) vs. Carnivores (other animals) vs. Omnivores (All) * Most animals are opportunistic feeders – eat outside their standard diet when their usual foods aren’t available * Animals must eat * But, to survive and reproduce balance their consumption, storage, and use of food 33.1: AN ANIMAL’S DIET MUST SUPPLY CHEMICAL ENERGY, ORGANIC MOLECULES, AND ESSENIAL
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The Effects of Food on the Body Do we eat to live or live to eat? Are we what we eat? Sitting down to a mouth watering breakfast of sizzling smoked Canadian bacon, extra cheesy omelet, garnished with crisp green lettuce leaves and red juicy tomatoes accompanied by warm toasted bread and a tall glass of refreshing apple juice does not only affect our senses but our body as well. Understanding the relationship between food and the body is a fascinating part of science known as Nutrition. Food is
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Chapter 40 4 main categories of tissue: Epithelial, Connective, Muscle, Nervous. I. Epithelial Tissue (Epithelium): forms interactive surfaces with environment on external and internal body surfaces; functions as barriers. Formed from continuous sheets of tightly packed cells Covers outside of body; or lines organs and body cavities Apical surface: the free surface exposed to air or body fluids Basal surface: cells at base of epithelium are attached to a basement membrane
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Substance Abuse – Pre-midterm Notes Week 2 (First lecture) – 9/10 * Substance use vs. abuse * Use * The legal enjoyment of your property within socially acceptable norms * i.e. you don’t drive under the influence – that’s not socially acceptable * Consumption of any psychoactive substance * More neutral * Includes * Social drinking * 1-2 drinks on any one social occasion * Abuse * Any
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structure, and protein function. • Monosaccharides are the basic molecular units (monomers) of which carbohydrates are composed. The structure of α-glucose and the linking of αglucose by glycosidic bonds formed by condensation to form maltose and starch. Sucrose is a disaccharide formed by condensation of glucose and fructose. Lactose is a
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Liquid and Viscous Products: Worksheet The principal display panel of a label must be located on that part of the container normally displayed to the user. The label must contain three basic mandatory statements which must, where applicable, appear in a prescribed manner: Product Identity Declaration. Net Quantity Declaration. Dealer Name and Principal Place Of Business. The product identity and net quantity declarations must appear on the principal display panel. The following
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