BIOLOGY LABORATORY Biologically Important Molecules Carbohydrates‚ Proteins‚ Lipids‚ and Nucleic Acids Objectives In this lab you will learn to: 1. Perform tests to detect the presence of carbohydrates‚ lipids‚ proteins‚ and nucleic acids 2. Recognize the importance of a control in a biochemical test 3. Use biochemical tests to identify an unknown compound Introduction Organic molecules are those primarily made up of carbon‚ hydrogen and oxygen. The common organic compounds of living
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Unit 1. Homeostasis and Integument 1. Define what is meant by homeostasis in living systems a. Homeostasis = Body wisdom ↓ ↓ Steady state * Homeostasis keeps us healthy * The means by which organisms (our body) maintain a constant internal environment in spite of fluctuations in the external environment. * This means humans have narrow limits we have to keep. 1. Body temp 2. Water content * Our blood contains 92% water and has to maintain
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Human Physiology Exam 1 Part 2 Study Guide Chapter 1 Define homeostasis * Maintenance of constant conditions in the internal environment. Composition‚ temperature and volume of extracellular fluid do not change significantly under normal conditions Know the components of a homeostatic control mechanism * Regulated Variable- Regulated to stay within relatively narrow limits * Set Point- normal desire value * Error Signal- difference between the actual value and the set point
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------------------------------------------------- Animal nutrition Introduction to animal nutrition There are seven major classes of nutrients: carbohydrates‚ fats‚ fiber‚ minerals‚ protein‚ vitamin‚ and water. These nutrient classes can be categorized as either macronutrients (needed in relatively large amounts) or micronutrients (needed in smaller quantities). The macronutrients are carbohydrates‚ fats‚ fiber‚ proteins‚ and water. The micronutrients are minerals and vitamins. The macronutrients
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EXPERIMENT 13 DIGESTION IN THE SMALL INTESTINES ------------------------------------------------- ABSTRACT The small intestine serves as the site of major digestive and absorptive processes. In this experiment‚ the action of pancreatic enzymes on representative samples of each food group under different conditions‚ such as increased/decreased pH and presence of other substances‚ were observed. A pancreatin solution was first prepared from a hog pancreas and was completely neutralized using
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Testing Food Substances for the Presence of Lipids Aim: To establish which food substances contain lipids. Hypothesis: 1. All diary products will contain lipids. 2. All animal tissue will contain lipids. 3. All plant storage organ products‚ i.e. seeds‚ will contain lipids. Introduction: Lipids are insoluble in water but soluble in organic solvents. Ethanol is an example of an organic polar solvent which will dissolve lipids to a limited extent. However ethanol is miscible with water so when
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Biology exam review 2.1 Kingdom King Phylum Philip Class Came Order Over Genus Germany Species South Domain Bacteria Archea Eukarya Kingdom Eubacteria Archeabacteria Protista‚ Fungi‚ Plantae‚ Animalia. # of cells Prokaryote Prokaryote Eukaryote Cell structure Cell walls made of peptidolglycan (coat of sugars) Cell walls without peptidoglycan Fungi-cell walls with chitin. Protista-cell walls of cellulose in some‚ and in others chloroplasts. Plantae-cell walls
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Juan G Macaraeg National High School Binalonan‚ Pangasinan The Potential of Avocado Fruit ( Persea Gratissima ) to Moisturize Skin and Guava Leaves (Psidium guajava linn ) as Anti-bacterial Soap Gwyneth M. Calica Vic Allen Leonel de Castro Michelangelo L. Lemon (Researchers) Mrs. Evelyn Casem Mrs. Gloria C. Nemedez (Research Teacher’s) 2014 - 2015 TABLE OF CONTENTS ACKNOWLEDGEMENT…………………………………………………………………….....i ABSTRACT……………………………………………………………………………………..ii CHAPTER I: INTRODUCTION Background
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INTRODUCTION Shaving gel is a viscous‚ clear gel preparation which is applied before shaving in order to soften the beard‚ lubricate the passage of razor over the face and moisturize the skin. Gels have cross-linked system which exhibits no flow in steady state. Desired characteristics of a Shaving Gel: * It should be clear and transparent. * It should have thick consistency but flowable. * It should lather easily when applied with brush. * It should give clean‚ fresh and moisturized
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1 Study Guide for Lectures 8/24‚ 8/26‚ 8/31‚ and 9/2 Note: It is highly suggested that you reference the figures/figure legends shown in class to further help you understand class material. The Genome Project (~92% complete): • 20‚000-28‚000 genes in the human genome o The genome was found using a shotgun sequence. o 10% of the genome is Long Intersperse Nuclear Elements (=LINEs). This leaves the questions as to which part of the genome are LINEs? 80‚000-120‚000 proteins in a cell. 200‚000-2
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