enzymes secreted by the pancreas for digestion are lipases for lipid/fat digestion‚ pancreatic amylase for carbohydrate digestion which continues the breakdown of the starch in the bread to a substance called maltose. As the food is further pushed along the small intestine it produces maltase which breaks down the maltose into an even smaller molecule called glucose. Another enzyme called protease - in the form of trypsin and chymotrypsin - are used in the digestion of protein to amino acids. In addition
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so insulin‚ a hormone which is carried in blood plasma and that binds to receptor sites on liver and muscle cells which causes the cells to become more permeable to glucose allowing the glucose to then be oxidised within the cell during aerobic respiration to produce ATP. ATP is then broken down to provide energy for everyday activities such as walking‚ or talking. Excess glucose is converted into glycogen and stored in the liver and muscle tissue that can then act as an instant energy source when
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FOOD 1. Food is a basic necessity for all living things. 2. Food is important in order to : (a) Provide energy to carry out physical activities. (b) Provide energy for the physiological activities in life such as reproduction‚ digestion and excretion. (c) Build new cells and ti repair tissues in the body. (d) Protect the body from deseases. (e) Maintain the body temperature. (f) Promote growth. 3. Food can be divided into
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Alan’s Biology Notes Chapter 1 – Basis of Life Ingestion – acquisition of food Assimilation – building of new tissues from digested food Monosaccharide – (carb) single sugar subunit Polysaccharide – (carb) polymer‚ insoluble in water; ex: glycogen / cellulose Lipids – (2:1 H/O ratio) 3 FA bonded to glycerol; chief means of food storage · Major component of adipose tissue · Steroids‚ waxes‚ carotenoids‚ porphyrins Proteins - polymers of AA joined by peptide bond / 1* = AA sequence‚ 2*
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BIOLOGY NOTES. UNIT 1: Photosynthesis Photosynthesis Word Equation: Light Carbon Dioxide + Water Oxygen + Glucose Chlorophyll How to test a leaf for starch: 1. Dip leaf boiling water for about 1 minute to soften it‚ stop further chemical changes and make the cell more permeable. 2. Turn off Bunsen burner. Put the leaf into the
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Any rough working should be done in this booklet. This document consists of 16 printed pages. IB04 06_0610_01/2RP UCLES 2004 [Turn over www.xtremepapers.net 2 1 What is a characteristic of all living organisms? A B C D 2 breathing circulation egestion sensitivity Which kind of skin do amphibians have? A B C D dry without scales dry with scales moist without scales moist with scales 3 The diagram shows how Homo sapiens (modern people) could have evolved from their ancestors.
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Trippple Award Specification (4BIO) Examination in 2012 Trippple Award Specification Key words are underlined in red. Practical work is printed in italics. Section 1: The nature and variety of living organisms Characteristics of living organisms include; M ovement R espitation S ensitivity G rowth R eproduction E xcretion N utrition In addition‚ all living organisms contain nucleic acids (DNA) and have the ability to control their internal conditions. Finally‚ all living
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COMPONENTS OF ENERGY EXPENDITURE BASAL METABOLISM * Measure of the energy needed by the body at rest for all its internal chemical activities. * Aprx. 1 cal/kg of body weight * Minimum amt of the body needed to * Respiration * Cellular metabolism * Circulation * Glandular act * Maintenance ng temp BMR- rate of basal metabolism in person at given time and place condition necessary for BMR test 1. Must be in fasting 12 hrs after meal-test usually in the morning
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digestive system. 3. Mouth: Propulsion‚ chemical digestion and mechanical digestion Small intestine: Propulsion‚ absorption‚ chemical digestion and mechanical digestion Esophagus: Propulsion Stomach: Propulsion‚ absorption‚ Chemical digestion‚ mechanical digestion Large Intestine: Propulsion‚ absorption chemical digestion 4. Absorption is the physiologic process by which molecules of food are taken from the gastrointestinal tract into the circulation. (Cherif‚ 2011 ) Propulsion is the movement
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should take buttermilk in the morning. Again during the day‚ buttermilk or recipes of buttermilk are indicated depending upon the strength of the digestive fire of the patient15. • If the power of digestion is weak‚ only buttermilk should be given again in the evening. • If the power of digestion is slightly better‚ then the patient should be given only buttermilk in the morning‚ and in the evening‚ he should be given Takravalehya (linctus prepared by adding buttermilk to the roasted flour of
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