and what colour does it turn in presence of starch and glycogen? Starch: yellow --> blue-black (amylase in starch reacts with iodine) Glycogen: yellow --> reddish-brown (due to the multi-branched component) 5) How do plants and animals store simple sugar glucose? In the form of polysaccharides. In plants‚ starch is the polysaccharide with glucose units linked by glycosidic bonds. Glycogen‚ in animals‚ is a larger polymer. 6) How do starch and glycogen differ? Molecular weight‚ overall
Free DNA Cell Cell cycle
Food Science Study Guide Food Science- the discipline in which biology‚ physical sciences‚ and engineering are used to study the nature of foods‚ the causes of their deterioration‚ and the principles underlying food processing Food Technology- the application of food science to the selection‚ preservation‚ processing‚ packaging‚ distribution‚ and the use of safe‚ nutritious‚ and wholesome food Aspects of Food Quality -Appearance -Size and shape -Color -Structure -Transparency
Premium Starch Glucose Sugar
of the steps in the cycle the breakdown of arginine into ornithine and urea‚ a reaction catalysed by the enzyme arginase. (See below) (Fig 1.0) Arginine Orthinine Urea Urease is the enzyme which catalyses the hydrolysis of urea according to the following equation: (NH2)2CO(aq) + 3H2O(l)  CO2(g) + 2NH3(g) The acidic ammonium carbonate is formed because the carbon dioxide dissolves in water to produce carbonic acid (H2CO3)‚ which immediately reacts
Premium PH Ammonia Carbon dioxide
have become a huge importance to industry and sparked a large interest into the exploration of enzyme activity in microorganisms. Amylase is one of the most widely used enzyme required for the preparation of fermented foods. Apart from food and starch industries‚ in which demand for them is increasing continuously‚ amylase is also used in various other industries such as paper and pulp‚ textiles‚ and medical labs. The global market for enzymes was about $2 billion in 2004 (Sivaramakrishnan et
Premium PH Enzyme Starch
1 of 20 The subatomic particles that play the greatest role in cellular chemical reactions are electrons. protons. neutrons. isotopes. Question 2 of 20 The structural unit that retains the properties of an element is the molecule. atom. cell. electron. Question 3 of 20 Which of the following are found in the nucleus of an atom? Protons Neutrons Electrons A and B Question 4 of 20 The component of an atom or molecule that is most important
Premium Atom Hydrogen Oxygen
experiment is to determine the equilibrium constant‚ denoted Keq‚ for the formation of [Fe(SCN)]2+ complex which is a product of the reaction between the ions Fe3+ and SCN-. In performing this experiment‚ solutions containing FeCl3 and KSCN‚ diluted in HCl‚ were measured for their absorbance using a UV-Vis spectrophotometer. Upon computing for the molar concentrations of the reagents‚ determining absorbance‚ and noting the length pathway of the instrument (cuvette)‚ the Beer-Lambert’s law was applied
Premium Concentration Chemical reaction Chemical equilibrium
in our food are insoluble so they cannot be directly absorbed into our blood stream and assimilated into new products. The polymers have to be hydrolysed into smaller more coluble molecules by adding water. This process happens during digestion. Hydrolysis is catalysed by digestive enzymes. The large intestine absorbs water‚ salt and minerals. Like other parts of the digestive system‚ it has a folded wall. This increases the surface area for absorption. Bacteria that decompose some of the undigested
Premium Digestion Stomach Small intestine
color b) white color c) brown color d) dirty green color 4.The reduction of alkylhallides takes place in the presence of a) Zn/HCl b) Na/HCl c) Mg/HCl d) Cu/HCl 5.Deficiency of vitamin E causes a) rickets b) scurvy c) anemia d) night blindness 6.Which one of the following is reducing sugar? a) glucose b) maltose c) sucrose d) starch 7.Buildings are being damaged by acid rain because it attacks a) Calcium sulphate b) Calcium nitrate c) Calcium carbonate d)
Premium Acid Oxygen Calcium carbonate
ABSTRACT The experiment aimed to determine the equilibrium constant Keq of the formation of Fe(SCN)2+ from Fe3+ and SCN- in the equation Fe3+(aq) + SCN-(aq) ⇌ Fe(SCN)2+(aq)‚ through spectrophotometric analysis. Acidified solutions (using 0.1 M HCl) of FeCl3 and KSCN were prepared for the calibration of the UV-Vis spectrophotometer (using standard solutions) and the determination of Keq of the Fe(SCN)2+ formation (solutions with unknown concentrations). Absorbance readings of the standard and
Premium Chemical equilibrium Concentration
CH 125 INORGANIC CHEMISTRY FOR MICROBIOLOGY Laboratory Manual 2013 Edition By Brian Clark‚ Marco Castillo & Patrick Chan CENTENNIAL COLLEGE OF APPLIED ARTS & TECHNOLOGY‚ SCARBOROUGH‚ ONTARIO Preliminary Laboratory Information - CH 125 The following safety information is provided to the student in order to ensure that all students and college staff working in the laboratory are aware of common industrial laboratory safety practices. Laboratory
Free PH PH indicator