Description : Out of photosynthesis and respiration in plants, which process occurs : (a) all the time ? -Science
Last Answer : Respiration. (b) Photosynthesis.
Description : Name the raw materials required for photosynthesis. How do plants obtain these raw materials ? -Science
Last Answer : The raw materials for photosynthesis are carbon dioxide and water. The green plants take carbon dioxide from air for photosynthesis. The carbon dioxide gas enters the leaves of the plants ... the xylem vessels to the leaves where it reaches the photosynthetic cells and utilized in photosynthesis.
Description : Explain the mechanism of photosynthesis. -Science
Last Answer : The process of photosynthesis takes place in the green leaves of a plant. The carbon dioxide gas required for making food is taken by the plant leaves from the air which enters the ... ) Reduction of carbon dioxide by hydrogen to form carbohydrates like glucose by utilising the chemical energy.
Description : If a plant is releasing carbon dioxide and taking in oxygen during the day, does it mean that there is no photosynthesis occurring ? Justify your answer. -Science
Last Answer : When photosynthesis occurs during the day, the carbon dioxide released by plants by respiration is all used up and not released. Similarly, some of the oxygen produced during photosynthesis is used up in ... and taking in oxygen even during the day, it means that no photosynthesis is taking place.
Description : How does carbon dioxide from the air enter the leaves of a plant to be used in photosynthesis ? -Science
Last Answer : The carbon dioxide gas enters the leaves of the plants through the stomata present on their surface. (b) The water required by the plants for photosynthesis is absorbed by the roots of ... the xylem vessels to the leaves where it reaches the photosynthetic cells and utilized in photosynthesis.
Description : (a) Photosynthesis converts energy X into energy Y. What are X and Y ? -Science
Last Answer : X is sunlight energy and Y is chemical energy. (b) The photosynthesis takes place in the following three steps; (i) Absorption of sunlight energy by chlorophyll. (ii) Conversion of ... iii) Reduction of carbon dioxide by hydrogen to form carbohydrates like glucose by utilising the chemical energy
Description : The leaves of a plant first prepare food A by photosynthesis. Food A then gets converted into food What are A and B ? -Science
Last Answer : A is glucose and B is starch.
Description : Apart from sunlight and chlorophyll, what other things are required to make food by photosynthesis ? -Science
Last Answer : Carbon dioxide and water.
Description : In addition to carbon dioxide and water, state two other conditions necessary for the process of photosynthesis to take place. -Science
Last Answer : Sunlight and chlorophyll.
Description : Dark reaction of photosynthesis does not need light. Do plants undergo dark reaction at night? Explain. -Science
Last Answer : Dark reaction does not mean that it occurs in the absence of light i.e., at night. Infact, it is the reaction occuring simultaneously with light reaction. It a chemical process occurring independent of light. This reaction is completely based on enzymes.
Description : Which of the following statements are incorrect ?a)Photosynthesis is a chemical change b) Digestion is a chemical change c)Formation of manure from vegetable was ... -Science-7
Last Answer : Option d) Iron and rust are the same substance. Iron and rust are different substances. Iron : Fe and Rust :
Description : What is the role of leaves in photosynthesis? -Science-7
Last Answer : Green leaves contain a green pigment called chlorophyll, this pigment traps the solar energy and convert it into chemical energy.