Lesson 1 Key Questions 1. Mg2+ has 10 electrons 2. Given that the half life of the radioisotope carbon -14 is 5730 years‚ it would not be useful in dating bones that are over a million years old. After 40 000 years of age less than 1% of the 14C is left in the bone and thus it is not useful for determining the exact age beyond that. 3. Hydrolysis - A chemical reaction where a chemical is broken down by a reaction with water. Hydrolysis is important for the digestion of food‚ making
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Enzyme structure Lock and key hypothesis Notes understand p178 Factors affecting enzyme action Effect of temperature & pH Role of enzymes p180 Aerobic respiration Equation Mitochondria p182 Enzymes in digestion Carbohydrase (amylase)‚ protease‚ lipase Structure of digestive
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Unit 3 Internal Systems Multiple Choice Identify the letter of the choice that best completes the statement or answers the question. ____ 1. The human stomach is a. | made up of a single type of cell. | d. | a complex organ. | b. | a single tissue. | e. | an organ system. | c. | a simple organ. | ____ 2. Which of the following is not part of the mammalian digestive system? a. | esophagus | d. | small intestine | b. | crop | e. | large intestine | c. | stomach | ____
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Chapter 1 INTRODUCTION Wine is an alcoholic beverage produced through the partial or total fermentation of grapes‚ other fruits and plants such as berries‚ apples‚ cherries‚ dandelions elder berries ‚ palm and rice can also be fermented. Grapes belong to the botanical family vitaceae of which there are many species. The species that are most widely used in wine production are Vitislabrusca and specially Vitisvinefara‚ which has long been the most widely used wine grape throughout the world
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Zachary’s Story Unit 6 Case Study 1 AP2630 Rhonda Carter July 27‚ 2015 A. An ulcer starts by eroding the mucosa of the G.I. tract wall. What functions of digestion and/or reabsorption might be lost if this layer is no longer functional? What functions will be compromised if the ulcer eats through the submucosa and then the muscularis? Absorption would not happen correctly some of the ingested and secreted may seep out of the lumen. This also could create a pathway of entry for pathogens
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9.1.2 3 difference between monocots and dicots 3 differences between monocots and dicots 1. Monocots have parallel venations along their leaf 2. Dicot roots have X-shaped xylem whereas monocots are organized into a ring 3. Dicot stem xylem form a ring around the outside whereas monocot xylems are scattered 9.1.3 Distribution of tissues in leaves and functions In the leaf you have xylem and phloem tissues. Xylem tissues act like transport tubes‚ transporting water and minerals. Phloem tissues
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Science Coursework Trypsin Investigation Aim I am going to prove that temperature effects the rate in which the enzyme Trypsin breaks down milk substrate into amino acids. Investigation "We strongly recommend the use of Vanish Stain Removal Tablets in conjunction with a 900 spin wash at 70°C" This was found on a milk carton of a well-known drinks company‚ Nesquick. The major food group constituent of milk is‚ of course‚ milk. For my Science Investigation‚ I am going to test different temperatures
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chewable digestive enzyme for children. This helps the body gain nutrients from food and plays an essential role in facilitating absorption. They are a highly effective digestive enzyme product because it contains a higher activity level of protease‚ amylase‚ lipase‚ cellulose and also includes six other enzymes. The higher activity levels assists in digesting more proteins‚ fats‚ carbohydrates and fiber. Enzymes are one of the most essential elements in our body. Enzymes are energized protein molecules
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Study Guide for Final Exam (Test 4) Chapter 1 1. What is nutrition? Why is it important? The science that studies food; and how food nourishes the body and helps to maintain our health. 2. Explain the different types of nutrients a. organic vs. inorganic Organic – contains carbon Inorganic- do not contain carbon b. macronutrient vs. micronutrient Macronutrient- “large” provide E/ fuel to our bodies Carbs‚ lipids‚ and protein Micronutrient- regulate body processes; supports immune
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Purpose The digestive system prepares food for use by hundreds of millions of body cells. Food when eaten cannot reach cells (because it cannot pass through the intestinal walls to the bloodstream and‚ if it could would not be in a useful chemical state. The gut modifies food physically and chemically and disposes of unusable waste. Physical and chemical modification (digestion) depends on exocrine and endocrine secretions and controlled movement of food through the digestive tract. Mouth Mouth
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