human digestive system. (Total 4 marks) 3. Describe the role of enzymes in the process of digestion of proteins‚ carbohydrates and lipids in humans. (Total 6 marks) 4. Draw a labelled diagram of the digestive system. (Total 5 marks) 5. State the sources‚ substrate‚ product‚ and optimum pH conditions for the enzyme amylase. (Total 4 marks) 6. Describe the role of enzymes in digestion with reference to two named examples. (Total 5 marks) 7. What sequence of organs do substances
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mechanical and chemical digestion. (a) Ingestion (b) Digestion (c) Absorption (d) Assimilation (e) Egestion TASK 3: The process of digestion involves mechanical and chemical digestion along with the process of: 1. Ingestion 2. Digestion 3. Absorption 4. Assimilation 5. Egestion Using either a starch molecule or a fat molecule explain the journey from the mouth to the anus and indicate clearly points at which mechanical and chemical digestion are taking place:
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The Effect and Rate of the Enzyme Amylase on Starch Abstract Assessing reaction speed of the enzyme amylase can be measured by the amount of glucose and maltose produced during given time intervals. I hypothesized that‚ if the reaction time is longer‚ then the amount of amylase will be larger. Enzymes are specific in their match of substrates they will breakdown – similar to a key and its lock. Since amylase is the only enzyme that breaks down starch‚ the procedure was effective and gave clear
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39 Steps Essay During a musical event shots are fired. A scared woman asks to go home with Richard. He takes her to his apartment. She is nervous and tells him she is a British spy and that two men are after her and they are waiting outside his building. One of the men is missing his little finger. Richard allows her to stay and turns up dead with a knife in her back by morning. She was holding a map with a certain area circled and mumbled something about the 39 steps. Richard sneaks
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FUNDAMENTALS OF HUMAN NUTRITION TOPIC: THE DIGESTION AND ABSORPTION OF FATS Final Presentation [pic][pic] Submitted to:- Miss Mehmoona Khalid Submitted By:- Sana Nadeem Arooj Khayyam Shaista Butt Affaf Rahman SEMESTER- II CONTENTS • Introduction of Digestion • Digestion of Triglycerides in GI Tract • In Mouth • In Oesophagus • In Stomach • In Small Intestine • Lipids
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Respiration‚ digestion and rocks Respiration Respiration is a chemical reaction that happens in all living cells. It is the way that energy is released from glucose‚ for our cells to use to keep us functioning. Remember that respiration is not the same as breathing (which is properly called ventilation). The glucose and oxygen react together in the cells to produce carbon dioxide and water. The reaction is called aerobic respiration because oxygen from the air is needed for it to work. Digestion
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body. You might find yourself asking‚ what does blood have to do with digestion‚ respiration and circulation? Hopefully‚ after the presentation all of your questions will be answered. When a person thinks of digestion they usually think about what happens in the stomach. A lot has happened to digest the food way before it gets to the stomach. It starts in the mouth or oral cavity. It is a process called mechanical digestion. First‚ Mastication begins. Mastication is the chewing of the food
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Digestion and Nutrients Briana Smallwood The human body needs nutrients for it to survive. Nutrients are the fuel for the body to do work. It helps the body grow‚ provide protection from sickness and disease‚ function properly‚ and even live. There are many types and forms of nutrients that each do specific or multiple jobs. They are classified in six main groups. Carbohydrates‚ proteins‚ fats‚ vitamins‚ minerals and water are all the different groups. Proteins are nutrients that help build and
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Define the following terms: Digestion: Digestion is the breakdown of large insoluble food substances in small and soluble one by means of mechanical and chemical actions. Peristalsis: It is a series of alternate contraction and relaxation of the circular and longitudinal muscles‚ producing a wave-like motion to move food down the oesophagus‚ from the mouth to the stomach. Emulsification: It is the hydrolysis of a few large fat globules into many small and soluble fat molecules. Transpiration:
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GCSE Business Studies Year 11 Scheme of Work Unit 3 – Exam (extended answers) Topic 3.1: Marketing This topic is usually studied from the end of year 10 (July) until October half term. Students will be assessed throughout the topic‚ and will have an end of topic test to highlight any areas where further understanding or work is required. What will I learn? Marketing – What is the meaning of the term ‘marketing’? Market Research – How is quantitative and qualitative research data collected
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