substrate into the product or products of the reaction. Each reaction is extremely specific‚ distinguishing between closely related compounds‚ including isomers. For example‚ the enzyme sucrase will only act on sucrose and will not bind to any other disaccharide. The molecular recognition of enzymes is due to the fact that they are proteins‚ which are defined as being macromolecules with unique three-dimensional conformations. Therefore‚ the specificity of enzymes is a consequence of its shape which results
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test for fatty acids‚ and the Biuret test for amino groups present in proteins. The last part of this lab takes an unknown substance and by the four tests‚ determine what the substance is. BENEDICT’S TEST Introduction: Monosaccharides and disaccharides can be detected because of their free aldehyde groups‚ thus‚ testing positive for the Benedict’s test. Such sugars act as a reducing agent‚ and is called a reducing sugar. By mixing the sugar solution with the Benedict’s solution and adding heat
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10/29/10 Honors Biology Period 12 Chemical Aspects of Life & Spit Lab ABSTRACT: The objective for the Spit lab was to test two different types of crackers for the presence or absence of starch and of reducing sugars. Also‚ to test the chewed cracker‚ the one that didn’t have a reducing sugar‚ for the presence or absence of a reducing sugar with the saliva in it. Adding on‚ another part of the objective is to determine the effect of amylase on starch. For the Chemical Aspects lab‚ the objectives
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Bio 101 Study Objectives for Exam 1 1. Know the characteristics of life 2. Understand how transfer of energy in an ecosystem works between the trophic levels 3. Know two basic cell types 4. Understand the basic steps of the scientific method and the proper design of an experiment. Including the statement of the hypothesis and use of controls. Definitions Energy Matter Producers Consumers/ decomposers Hypothesis 1. Given any element and a periodic chart be able to determine
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Connor Shortall AP Biology Vocabulary List for Chapters 1-5 Chapter 1 Properties of life a. Order: Molecules in living things are arranged in specific structures. b. Reproduction: Organisms will reproduce their own kind; life comes from life c. Growth & Development - DNA directs the pattern of growth and development‚ producing an organism that is characteristic of its species d. Energy Processing- Organisms take in energy though various methods and make it usable e. Response to the Environment -
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Biology exam Endocrine system: Hormones: chemical messengers that coordinate the body’s activates. Substances secreted by cells that act to regulate the activity of other cells in the body. They are part of the endocrine system and they are slow acting but have a longer affect than neurotransmitters. Functions: * regulate growth‚ development‚ behavior‚ and reproduction. * Maintain homeostasis * Regulate metabolism and water and mineral balance * Respond to external stimuli
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atom | : Acid | | 9 : Double sugar made up of two monosaccharide units | : Neutralization | | 10 : Function is to store energy for later use M. | : Buffers | | 11 : A group of atoms bound together in a group | : Disaccharide | | 12 : Opposite of base | : Carbohydrates | | 13 : Number of protons in the nucleus; determines the type of atom | : Electrolyte | | 14 : Dissociate to form equal amounts of hydrogen ion and hydroxide ion | : Positive
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polysaccharide e. a sugar 8. What kind of molecule is represented by the structure below? CH3CH2CH2CH2CH=CHCH2CH2CH2CH2CH2CH2CH2COOH a. a sugar b. an unsaturated fatty acid c. a saturated fatty acid d. a disaccharide e. a phospholipid 9. Which of the following items is a polymer of glucose? a. starch b. glycogen c. cellulose d. lactose e. a‚ b‚ and c‚ but not d 10. Lipid bilayers are created from: a
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PHYSIOLOGIC VALUE OF FOOD Organic compounds * Protein * Lipids * Carbohydrates * Vitamins Inorganic elements * Water * Minerals Vit & min * Act as a catalysts which prompt the 3 major nutrients –carbohydrates ‚ protein‚fats METABOLISM * “Metabolismos”-to change or alter * Chemical process of transforming foods into complex tissue elements and of transforming complex body substance into simpler ones‚ along with the production of heat energy * Is the totality of the
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Unit 2 Lecture Study Guide 1) What are the parts of an atom? Where are the subatomic particles found? The atoms are the smallest units of matter with their own chemical characteristics. The atoms are divided into 2 parts. The first part is the central nucleus and the electron cloud. The central nucleus contains very heavy particles and the electron cloud contains very light moving particles. The subatomic particles are the protons‚ neutrons‚ and the electrons. They are located
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