Table of Contents
- 1 Why photosynthesis is combination reaction?
- 2 What coupled reaction processes?
- 3 Which reactions are often coupled in an organism?
- 4 Is photosynthesis a combination reaction?
- 5 What is the purpose of a coupled reaction?
- 6 What is an example of a coupled reaction in photosynthesis?
- 7 Where do each of these reactions take place in photosynthesis?
- 8 Why do cells need coupled reaction?
- 9 How are photosynthesis and cellular respiration coupled reactions?
- 10 What happens to energy in a coupled reaction?
- 11 Why is photosynthesis an endothermic chemical change?
Why photosynthesis is combination reaction?
The photosynthesis chemical equation states that the reactants (carbon dioxide, water and sunlight), yield two products, glucose and oxygen gas. The single chemical equation represents the overall process of photosynthesis. Chlorophyll is a pigment that absorbs sunlight energy. Make sure to mark as brainliest!
What coupled reaction processes?
chemical reaction with a common intermediate in which energy is transferred from one side of the reaction to the other. An example is the formation of atp, whichis an endergonic process and is coupled to the dissipation of a proton gradient.
What is the reaction that occurs during photosynthesis?
The photosynthesis reactions occur in the colored pigments in plant cells. During the photosynthesis process, plants capture light energy and use that energy to make glucose. Another product of this reaction is oxygen, which is released as a gas.
Which reactions are often coupled in an organism?
Coupled Reactions in Biology Organisms often the hydrolysis of ATP (adenosine triphosphate) to generate ADP (adenosine diphosphate) as the spontaneous coupling reaction (Figure 7.7. 1).
Is photosynthesis a combination reaction?
Photosynthesis is a combination reaction while respiration is decomposition reaction.
Is photosynthesis a combination?
A decomposition reaction is the opposite of a combination reaction. Explain with the help of an example. Q4. Photosynthesis is a redox reaction.
What is the purpose of a coupled reaction?
Coupled reactions are described as reactions that are joined together and are used to push the second reaction with the release of free energy in one reaction. Enzymes are catalysts that boost the reaction rate. Lowering the activation energy.
What is an example of a coupled reaction in photosynthesis?
So, the glucose and O2 created by photosynthesis is used in respiration to make CO2 and water – the materials needed in photosynthesis. In this way, these two reactions are coupled.
Why photosynthesis is an endothermic reaction?
Photosynthesis is an endothermic reaction because sunlight energy is absorbed by green plants during this process. Note: Light Intensity: Increased light intensity results in a higher rate of photosynthesis. On the other hand, low light intensity results in a lower rate of photosynthesis.
Where do each of these reactions take place in photosynthesis?
The light-dependent reactions take place in the thylakoid membranes in the granum (stack of thylakoids), within the chloroplast. The two stages of photosynthesis: Photosynthesis takes place in two stages: light-dependent reactions and the Calvin cycle (light-independent reactions).
Why do cells need coupled reaction?
Cells must obey the laws of chemistry and thermodynamics. When two molecules react with each other inside a cell, their atoms are rearranged, forming different molecules as reaction products and releasing or consuming energy in the process.
Is a combination reaction?
A combination reaction is a general category of chemical reactions. It may be defined as a chemical reaction in which two or more substances combine to form a single substance under suitable conditions. Combination reactions are also known as synthesis, because in these reactions new substances are synthesized.
How are photosynthesis and cellular respiration coupled reactions?
How are photosynthesis and cellular respiration coupled reactions? The products of photosynthesis are the reactants for respiration, and the products of respiration are the reactants for photosynthesis.
What happens to energy in a coupled reaction?
A reaction occurs that releases energy (like ATP losing a phosphate to become ADP + Pi). If this is uncoupled, the energy will merely turn into heat. If it is coupled, then it can be used to fuel some other process. For instance, if you couple the ATP -> ADP reaction to a certain protein, the energy can be used to modify the shape of that protein.
Why is photosynthesis considered an endergonic reaction?
The photosynthetic reaction is considered an endergonic reaction. In cells, endergonic reactions are often coupled with exergonic reactions that store energy. Why is photosynthesis considered an endergonic reaction? Low-energy reactants are converted to high-energy products.
Why is photosynthesis an endothermic chemical change?
Mar 7, 2016 Photosynthesis turns carbon dioxide and water into oxygen and carbohydrates, therefore a chemical change occurs. It is also an endothermic reaction, because, energy needs to be inputted in order for photosynthesis to occur. The energy input is then stored in the bonds of the glucose that were formed as a result of photosynthesis.