PLANT PHYSIOLOGY
PHOTOSYNTHESIS
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
|
formation of ATP from glucose during respiration
|
|
|
formation of carbohydrates from carbon dioxide during photosynthesis
|
|
|
formation of oxygen from water molecules during photosynthesis
|
|
|
None of the above
|
Detailed explanation-1: -The answer is a. formation of ATP from glucose during respiration.
Detailed explanation-2: -During photosynthesis, CO2 is reduced to glucose, and H2O is oxidized to release O2. In cellular respiration, glucose is oxidized, and oxygen is reduced to form CO2 and water.
Detailed explanation-3: -During photosynthesis, plants take in carbon dioxide (CO2) and water (H2O) from the air and soil. Within the plant cell, the water is oxidized, meaning it loses electrons, while the carbon dioxide is reduced, meaning it gains electrons. This transforms the water into oxygen and the carbon dioxide into glucose.
Detailed explanation-4: -The tarnishing of silver is just one example of a broad class of oxidation-reduction reactions that fall under the general heading of corrosion. Another example is the series of reactions that occur when iron or steel rusts. When heated, iron reacts with oxygen to form a mixture of iron(II) and iron(III) oxides.
Detailed explanation-5: -Answer and Explanation: The combustion reaction given by choice C) is an example of an oxidation-reduction reaction. Combustion reactions are redox reactions. This is due to the reactants being oxidized as C and H in the products now contain O atoms.