false; dark reaction is independent of light
False. The reactions that convert the energy in sunlight into chemical energy of ATP and NADPH are part of the light-dependent reactions in photosynthesis. The Calvin cycle, on the other hand, is the series of reactions that occur in the stroma of chloroplasts and are responsible for carbon fixation and the production of sugars.
No, ATP molecules are not directly made during the light-independent reactions of photosynthesis (Calvin cycle). ATP is produced during the light-dependent reactions (Light reactions) of photosynthesis when light energy is used to convert ADP and inorganic phosphate into ATP. The ATP produced in the light reactions is then utilized as an energy source during the Calvin cycle to drive the conversion of carbon dioxide into glucose.
False. Increasing the intensity of light typically increases the rate of photosynthesis, up to a certain point where other limiting factors may come into play.
False. Salinity is not the most important factor in the process of photosynthesis. Light intensity, carbon dioxide concentration, and temperature all play more vital roles in photosynthesis.
Yes, it is true. Some plant cells are capable of both respiration and photosynthesis. During the day, these cells perform photosynthesis to convert sunlight into energy, and at night, they switch to respiration to produce energy from stored sugars.
False. Light energy is converted into chemical energy during photosynthesis, not the citric acid cycle. The citric acid cycle, also known as the Krebs cycle, is a series of chemical reactions that occur in the mitochondria and are involved in the production of ATP from the oxidation of acetyl-CoA.
False. During photosynthesis, electrons are typically carried by molecules such as chlorophyll and other electron carriers like NADPH, which is a reduced form of NADP+. Hydrogen ions do play a role in some reactions during photosynthesis, but they are not primarily responsible for transferring electrons between molecules.
During the dark reactions (Calvin cycle) of photosynthesis, water is not split. Instead, the dark reactions use the products of the light reactions (ATP and NADPH) to convert carbon dioxide into glucose through a series of enzyme-controlled reactions. The splitting of water occurs in the light reactions at Photosystem II to generate oxygen, electrons, and protons.
Actually, carbon dioxide molecules enter the Calvin cycle (light-independent reactions) of photosynthesis, not the light-dependent reactions. In the Calvin cycle, carbon dioxide is converted into glucose with the help of ATP and NADPH produced during the light-dependent reactions.
False. The reactions that convert the energy in sunlight into chemical energy of ATP and NADPH are part of the light-dependent reactions in photosynthesis. The Calvin cycle, on the other hand, is the series of reactions that occur in the stroma of chloroplasts and are responsible for carbon fixation and the production of sugars.
False.
No, ATP molecules are not directly made during the light-independent reactions of photosynthesis (Calvin cycle). ATP is produced during the light-dependent reactions (Light reactions) of photosynthesis when light energy is used to convert ADP and inorganic phosphate into ATP. The ATP produced in the light reactions is then utilized as an energy source during the Calvin cycle to drive the conversion of carbon dioxide into glucose.
False. False.
False. There is a limit to the rate of photosynthesis even as light intensity increases. Once the saturation point is reached, the rate of photosynthesis remains constant.
false
A) true
False. Increasing the intensity of light typically increases the rate of photosynthesis, up to a certain point where other limiting factors may come into play.