3. Explain how the products of photosynthesis are transported‚ partitioned and allocated during plant growth and reproduction. Photosynthesis has been the focus of much attention than any other physiological process in flora physiology. Photosynthesis is a complex plant metabolic process‚ similar to respiration and fermentation‚ in which a plant can synthesize organic matter using light and chlorophyll. According to Kirk 1994: Photosynthesis is a complex physic-chemical process that is the central
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Cell Respiration Respiration is the process by which organisms burn food to produce energy. The starting material of cellular respiration is the sugar glucose‚ which has energy stored in its chemical bonds. You can think of glucose as a kind of cellular piece of coal: chock-full of energy‚ but useless when you want to power a stereo. Just as burning coal produces heat and energy in the form of electricity‚ the chemical processes of respiration convert the energy in glucose into usable form. Adenosine
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5.2.2 Enthalpy and Entropy For 2013-2014 S for melting vs. boiling Discuss How do chemists work out whether a reaction will happen or not? There are various ways including equilibrium constants‚ standard electrode potentials and enthalpy values. But how are these related? There is a more fundamental concept which links all these together. Remember? Enthalpy is a measure of heat energy and ΔH is the enthalpy change which we studied at AS. Questions 1. Which sign for ΔH would
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UNIVERSITY OF PORT HARCOURT COLLEGE OF NATURAL AND APPLIED SCIENCES FACULTY OF BIOLOGICAL SCIENCES DEPARTMENT OF ANIMAL AND ENVIRONMENTAL BIOLOGY A REPORT ON RESPIRATION IN INVERTEBRATES COMPILED & PRESENTED BY DEPARTMENT OF ANIMAL AND ENVIRONMENTAL BIOLOGY 2012/2013 SESSION COURSE: FSB201 (CELL BIOLOGY) COURSE LECTURER: DR. NOUTCHA DATE : 7TH MARCH‚ 2013 INTRODUCTION Respiration is one of the characteristics of ALL LIVING THINGS. In the simplest terms‚ "respiration" simply means "breathing"
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Gases Chapter 5 1 Elements that exist as gases at 250C and 1 atmosphere 2 3 Physical Characteristics of Gases • • • • Gases assume the volume and shape of their containers. Gases are the most compressible state of matter. Gases will mix evenly and completely when confined to the same container. Gases have much lower densities than liquids and solids. NO2 gas 4 Force Pressure = Area (force = mass x acceleration) Units of Pressure 1 pascal (Pa) = 1 N/m2 1 atm = 760
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plant then uses this energy to carry out photosynthesis. In humans chemical energy found in food is absorbed by the body’s cells during respiration to produce energy. The process of respiration Glucose + Oxygen → Carbon Dioxide + Water + Energy (C6H12O6 + 6O2 → 6CO2 + 6H2O + ATP) This type of respiration is called aerobic respiration which means respiration with oxygen. Mitochondria carry out respiration in the cells. This is why muscles have so many mitochondria as they need more energy in order
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www.igcse.at.ua ORGANIC CHEMISTRY OIL and its many useful PRODUCTS The origin of oil Crude oil is formed from organic material of the remains of plant and animal organisms that lived millions of years ago. These remains form sediments eg at the bottom of seas‚ and become buried under layers of sedimentary rock. They decay‚ without air (oxygen)‚ under the action of heat and pressure to form crude oil over millions of years. It is a fossil fuel because it is formed from
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empirical formula. The molecular formula gives the actual number of atoms of each element in the molecule and the empirical formula gives the lowest whole number ratio of the atoms in the molecule. For instance‚ the molecular formula of glucose is C6H12O6 and its empirical formula is CH2O. For some molecules such as water‚ the empirical and molecular formulas are the same. One of the common techniques used to help determine the identity of a substance involves combustion of very small amounts of the
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Chapter 5 Assignment 1. What is energy? What are the three forms of energy? Energy is the capacity to do work. There are four types of energy according to the powerpoint. They are Kinetic energy (energy of motion)‚ potential energy (stored energy)‚ thermal energy (heat)‚ and chemical energy (potential energy of molecules). 2. State the First and Second Laws of Thermodynamics. Include entropy in your explanation. The first law states that energy can neither be created nor destroyed it can
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temperature in which the amount of CO2 produced will be measured every one minute. Rationale: As we all know‚ respiration is a process that takes place in all living organisms where it converts sugar‚ taken in by the organism into energy. Its formula is C6H12O6+ 6O2----> 6CO2+ 6H2O + ATP. The yeast in this experiment will have to respire an-aerobically because there will be an absence of oxygen. The higher the temperature the more kinetic energy there is. When there is more kinetic energy‚ the molecules
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