SBI4U-C 1 Lesson Introducing Biochemistry 1 Lesson 1 Biology SBI4U-C Introduction If you think about it‚ living things are made up of chemicals. The cells‚ tissues‚ organs‚ and organ systems that together make up a functioning organism are all the product of interacting chemicals. In order to understand how the organism functions‚ you must also recognize how these chemicals function. The study of the chemicals that are involved in living things is known as biochemistry
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Neutralization with a base weaker than the acid results in a weakly acidic salt. An example is the weakly acidic ammonium chloride‚ which is produced from the strong acid hydrogen chloride and the weak base ammonia. Conversely neutralizing a weak acid with a strong base gives a weakly basic salt sodium fluoride from hydrogen fluoride and sodium hydroxide. Acids are often used to remove rust and other corrosion from metals in a process known as pickling. They may be used as an electrolyte in a wet
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naturally as a gas‚ chlorine is obtained through a chemical reaction involving a sodium chloride and water mixture known as brine. When an electrical current is passed through the brine it reacts and breaks up the solution into chlorine‚ caustic soda and hydrogen gas. The reaction looks like this: 2NaCl + 2H2 ----- Cl2 + 2NaOH + H2. Not only is the chlorine exceptionally useful‚ but the caustic soda that is a co-product of obtaining chlorine is also used in soap‚ pulp and paper‚ and textile industries. Having
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How fast is your reaction? Part 1 – How temperature affect the rate of reaction Chemical equation Magnesium + hydrochloric acid → magnesium chloride + hydrogen Mg + 2HCL → MgCl2 + H2 Graph Conclusion and questions 1. What factors/variables did you keep the same in this experiment? * We kept the same volume of hydrochloric acid (10 cm3) and the magnesium ribbon (5cm) because that way we could get a fair test experiment. We also repeated
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Membrane Behavior Lab Abstract: Introduction: The permeability of a cell to solutes in an aqueous medium depends upon the physical and chemical make–up of the membrane. The maintenance of the living cell depends upon the continued presence and functioning of a selectively permeable membrane. If the nature of the membrane is changed or altered in any way‚ this may well affect its permeability and thus the properties of the cell of which it is a part. Irreversible changes in the permeability
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Biofuels. Name: Institution: Course: Tutor: Date: A biofuel is made from a biological process known as carbon fixation. These biofuels are gotten from the conversion of biomass‚ solid biomass‚ liquid fuels as well as biogases. The biofuels are continued to be known because of the high prices of fossil fuels and also for the purposes of ensuring fuel security in various countries. (Caye‚ D. & Terry W.2008). The biofuels are produced from two distinct ways; that is through metabolic by-products
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OXIDATION AND REDUCTION Oxygen makes up only about 20% of the air‚ yet is the essential component for so many reactions. Without it fuels would not burn‚ iron would not rust and we would be unable to obtain energy from our food molecules through respiration. Indeed animal life on the planet did not evolve until a certain concentration of oxygen had built up in the atmosphere over 600 million years ago. The term oxidation has been in use for a long time to describe these and other reactions where
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Structure of Matter | | 1. | An element consists of three isotopes in the relative abundance given below. What is the atomic mass of this element? | | 30.00% = 40.00 amu50.00% = 41.00 amu20.00% = 42.00 amu | | (A) | 40.90 | | (B) | 41.00 | | (C) | 41.90 | | (D) | 42.20 | | (E) | 42.90 | | | 2. | The total number of electrons that can be accommodated in the fourth principal energy level is _____ | | (A) | 2 | | (B) | 8 | | (C) | 18 | | (D) | 32 | | (E)
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SPM CHEMISTRY REVISION MODULE FOR THE MASTERY OF THE BASICS IN SPM CHEMISTRY Panel : 1. 2. 3. 4. June Ling S J Chen Soo Chien Felix Ngui Jong Kah Yin SMK St Joseph‚ Kuching Kolej DPAH Abdilah‚ Kuching SMK Tabuan Jaya‚ Kuching SM Sains Kuching REVISION MODULE FOR THE MASTERY OF THE BASICS IN SPM CHEMISTRY Page Compiled and edited by : Jong Kah Yin 1 SPM CHEMISTRY INDEX CONTENT 1 REVISION CHECK-LIST Form 4 Form 5 2 WRITING EQUATIONS 2.1 Charges of ions 2.2 Formulae of compounds
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specific job‚ and they do not die‚ they are reused. For example‚ catalase is an enzyme found in almost all living cells that will break down hydrogen peroxide and turn it into water and oxygen. The breakdown of Hydrogen peroxide happens when it gets released from metabolism‚ and Materials: Yeast Solution 4 Test tubes Graduated cylinder 1 Bottle of Hydrogen peroxide Hydrochloric acid Hot water bath Ice Bath Test tube rack Test tube holder Safety: Wear goggles at all times during lab. When
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