The body is made up of a number of systems that all interlink and produce everything we need in order to survive. Within the body there is the digestive system; the circulatory system‚ the nervous system‚ the muscular system‚ the skeletal system and the reproductive system. These systems are all part of one another and they share organs‚ tissues and cells and that is how they interlink. The diagram above shows each system and where they are located in the body. Each system is shown in a different
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The objective of this macromolecules lab was to identify the presence any of the major macromolecules in various every day food items. The three macromolecules that this lab was carried out for were carbohydrates‚ lipids‚ and proteins. There were five different experiments conducted and each of those experiments had one factor in common‚ they all had the same controls. The controls in this lab activity were already set for the lab activity. The controls were the distilled water and the baking soda
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Centre Number For Examiner’s Use Candidate Number Surname Other Names Examiner’s Initials Candidate Signature Question General Certificate of Secondary Education Higher Tier January 2014 Mark 1 2 3 Additional Science M (modular) MBL2HP 4 Unit Biology B2 5 H Biology M (modular) Unit Biology B2 Wednesday 8 January 2014 9.00 am to 10.00 am 6 7 TOTAL For this paper you must have: a ruler. You may use a calculator. B Time allowed 1 hour Instructions Use black ink or black ball-point
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Chapter 22: Nutrition and Digestion Short-Answer Questions 1) What types of foods are characteristic of the diets of carnivores‚ herbivores‚ and omnivores? Answer Carnivores – have a diet that consists of meat which they get by killing and consuming other living animals‚ other animals that have died‚ or by sucking the fluids of other animals. Herbivores – have a diet that consists of eating parts of plants such as leaves‚ fruit‚ stems‚ roots‚ or by extracting fluids from plants and consuming
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series of biochemical tests was carried out to identify unknown carbohydrates. There were six carbohydrates that needed to be identified; they have been randomly labelled A-F. The carbohydrates are glucose‚ fructose‚ maltose‚ lactose‚ sucrose and starch. There was six tests that were carried out to help identify them‚ these were: Iodine Test‚ Solubility in Water‚ Benedict’s test‚ Acid Hydrolysis‚ Barfoed test and Diastix test. Aim The aim of the experiment which was carried out was to identify
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Principles of Human Physiology‚ 4e (Stanfield) Chapter 20 The Gastrointestinal System 20.1 Multiple Choice Questions 1) Which of the following is NOT a basic process of the gastrointestinal system? A) digestion B) filtration C) absorption D) secretion E) motility Answer: B Diff: 4 Page Ref: 568 2) Which of the following is the correct order of the layers of the gastrointestinal tract wall‚ from lumen to external surface? A) mucosa submucosa muscularis externa serosa
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edkfjeLkfkfkrfkrkg;regkldllllllllllllllllllllllllllllllllllllllllllllllllllllll- llllllllllllllllllllllllllllllllllllllllllllllllllllllllllll- llllllllllllllllllllllllllllllllllllllllllllllllllldfdkf Determine the presence of catalase enzyme activity using hydrogen peroxide. 1. Test for the presence of catalase in liver. A. Using a knife‚ cut a slice of liver that measures approximately 1 cm by 1 cm and place it on a slide. B. Using a micropipette‚ place a few drops of hydrogen peroxide (H2O2)
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use ‚ is the Bioplastic which is one of many remedies scientists are really looking forward for and relying on. Bioplastics are plastics derived from renewable biomass sources‚ such as vegetable fats and oils‚ corn starch‚ pea starch or microbiota. Bioplastic types such as starch-based plastics or PHA are potentially biodegradable. This feature is directly linked to the chemical structure of the polymer and can benefit particular applications. Biodegradable plastic types offer new ways of recovery
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the Benedicts’ reagent of blue‚ indicated no reducing sugars‚ or a negative (-) test (water‚ table sugar solution‚ gelatin‚ egg white solution‚ and unknown (A3) solution). As for the Iodine stain‚ the color changes of bluish black (indicated plant starch; cornstarch solution and unknown A3)‚ dark reddish brown (indicated glycogen)‚ and violet brown to reddish brown (indicated cellulose; potato solution and sweet potato) presented
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parts. THE DIGESTIVE SYSTEM Digestion is a process of breaking down large complex food substances into simple molecules that can be used by each cell. Most of the foods of organisms consist of carbohydrates‚ fats‚ and proteins. Each of these large molecules acted upon by special kinds of digestive systems that speed up digestion by hydrolysis or splitting of molecules. Food also includes smaller molecules such as water‚ minerals and vitamins. DIGESTION IN PLANTS Plants do not have
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