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Energy Transfer and Energy Transformation
. The ATP molecules transfer energy to other biological molecules. ATP (adenosine triphosphate) is an energy rich compound having three phosphate group attached to a nucleoside of adenine (a nitrogen base), called adenosine (adenine + pentose sugar)..
Modes of Transference of Energy
Modes of Transference of Energy - Chemical reactions are accompanied by the energy changes. The exchange of energy between the system and surroundings can occur in several ways. Two of the important modes of transference of energy..
Modes of Transference of Energy
Chemical reactions are accompanied by the energy changes. The exchange of energy between the system and surroundings can occur in several way..
Light Reaction
It is so called as it takes place only in the presence of sunlight and hence is a light-dependent reaction. Robin Hill, an English biochemist conducted studies on isolated chloroplasts to understand the mechanism of light reactions. Hence, it is also called Hill's reaction..
It is so called as it takes place only in the presence of sunlight and hence is a light-dependent reaction. Robin Hill, an English biochemist conducted studies on isolated chloroplasts to understand the mechanism of light reactions. Hence, it is also called Hill's reaction..Electrochemical Reactions
. When a metallic wire connects the two electrodes, the electrons flow from the negatively charged electrode to the positively charged electrode. Thus, in an indirect redox reaction, electrons flow in a particular direction through an external conducting wire connecting the two electrodes..
Energy and Orientation Barriers to Reactions
Collision Theory - From Arrhenius equation, it is seen that the rate constant k of a reaction increases with temperature and therefore, the rate of reaction also increases. Why does k depend on temperature? This can be explained, to a certain extent, by collision theory. Accordi..
Energy and Orientation Barriers to Reactions
From Arrhenius equation, it is seen that the rate constant k of a reaction increases with temperature and therefore, the rate of reaction also increases. Why does k depend on temperature? This can be explained, to a certain extent, by collision theor..
Energy Changes in Chemical Reactions
Internal Energy - Every substance possesses a definite quantity of energy, under a given set of factors such as chemical nature of the substance, temperature and pressure. The total energy contained in a system or substance is called its internal energy or in..
Activation energy is high for slow reactions.
Example 11: The rate constants of reaction at 700 K and 760 K are 0.011M - 1 s - 1 and 0.105 M - 1 s - 1 respectively. What are the values of 'A' and 'E..
The Dark Reactions
ATP and NADPH 2 , formed during the earlier phase are essential for the assimilation of CO 2 to carbohydrates. This assimilation reaction takes place in the stroma, where all the necessary enzymes are present. Collectively, these reactions are known as carbon reac..
Result
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