Digestive system 6.1.1 explain why digestion of large food molecules is essential * Large food molecules are polymers‚ broken down into monomers in order to be absorbed into the blood * Humans eat substances by other organsims‚ many which are not suitable for human tissues therefore they must be broken down and reassembled in a form that is suitable * Many molecules in foods are too large to be absorbed by the villi in the small intestine‚ the large molecules have to be broken down
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c. stomach d. pancreas 2. What part of the digestive system where mechanical digestion happens? a. mouth b. rectum c. stomach d. esophagus 3. The throat is divided into two separate tubes: the trachea and the esophagus. Which of the organs prevents food from entering the trachea? a. The uvula b. The tongue c. The trachea d. The epiglottis 4. What is the main functions of the digestive system? a. ingestion and digestion
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Digestion Lab Notebook Due Sunday at Midnight CST Week 6‚ Worth 100 points‚ pg. 105 Questions: 60 points Data/Results: 15 points Summarizing activities: 25 points Name: SC 245 Lab Date: Exercise 8 Chemical and Physical Processes of Digestion‚ pg. 105 Introduction: In this lab‚ I will learn how the complex digestive system breaks down substrates such as fats‚ proteins and carbohydrates. Activity 1: Assessing Starch Digestion by Salivary Amylase Data: Chart 1 – Salivary Amylase
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Digestion Self-design Practical: The effect of pH on enzyme activity Rationale Amylase is an enzyme involved in the digestion system which catalyses the breakdown of starch into sugars. It is not only present in human saliva but also in the pancreas‚ where it hydrolyses dietary starch into disaccharides and trisaccharides which are converted by other enzymes to glucose to supply the body with energy. pH has an effect on the activity of all enzymes‚ including amylase. As the pH level increases
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Does the PH level of acids in our stomach affect the digestion proteins? Yes‚ if the acidity in my/a stomach is high in terms of the PH balance then the proteins in our stomach will be digested faster because acids are known to breakdown and eat away at many objects. The purpose of this project was to observe how the digestion of protein varies at different pH levels. This project in my eyes helps society by finding the best types of food (i.e. ones with higher/ lower acidity and pH balance)
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University of Phoenix Material Human Digestion Worksheet [pic] The Digestive System and its Functions Review the diagram located on p. 1. In the space provided below‚ write the name of each organ or part‚ and explain the function of each one as it relates to digestion and absorption. Explanations must be written as complete sentences. Please make sure that you identify each organ or part below with the corresponding number located in the diagram. | |DIGESTIVE ANATOMY
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from viruses‚ bacteria‚ diseases and to stop larger objects from entering the internal body. The system also protects your body from dehydration‚ overheating‚ or freezing. There is usually more than one layer of skin on a species. A toad’s (bufo marinus) Integumentary system consists of a thin‚ moist skin. The skin has two layers‚ an outer epidermis and an inner dermis. The state of QLD environmental protection agency (2007) discusses that there is also a thin exterior cuticle layer that the animal
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Cane toads in Australia From Wikipedia‚ the free encyclopedia Jump to: navigation‚ search The cane toad (Bufo marinus) is an invasive species in Australia. The cane toad is the largest species in the family Bufonidae. Adult cane toads are usually heavy-built and weigh an average of up to 1.8 kg. (4 lbs.). Their size may vary from 15–23 cm.(4-9 in.) and their skin is warty. The coloration on their back and sides may vary from olive-brown or reddish-brown‚ gray‚ and yellow while their bellies
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organism’s body. It is the one that receives all information from different stimuli and controls the movement of body parts. But for sudden stimuli that needs a quick response‚ spinal cord reflexes happened. The effect of decerebration on a toad (Bufo marinus) will cause its inability to move‚ but it still responded to stimuli because of certain reflexes which were not mediated by the brain. The intact toad’s response to certain stimuli was first observed. The same toad was decerebrated and took the
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Common name Cane Toad. Scientific name bufo marinus. The classification of the cane toadanimalia-chordata-amphibia-anura-bufonidae-bufo-B.marinus. Animal is native to Native to central and north south America but was introduced in north east Australia and Philippines and Caribbean. The biome it lives in live mostly on the equator near rainforest and swamps. Description males an average length of 15–20 cm (3.9–5.9 in).females an average length of 10–15 cm (3.9–5.9 in).Organisms niche Primary
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