She brings them into the house due to a pending ice storm and places them in a dark room. She provides plenty of water and soil nutrients, but does not turn on the lights to conserve energy.
Which of the following is most likely to occur first?
a
Calvin cycle will continue fas long as the products from the light dependent cycle and CO2 are available.
b
Fermentation will begin in the chloroplasts of the leaf cells.
c
Light dependent cycle will continue at the same rate with adequate water and nutrients.
d
Photosynthesis will end abruptly, as Mrs. Wade is a plant murderer.
Bot GPT 3.5
answeredLight dependent cycle will continue at the same rate with adequate water and nutrients.
Step-by-Step Bot
answered
The light-dependent cycle, also known as the light reactions, are the set of reactions that convert light energy into chemical energy in the form of ATP (adenosine triphosphate) and NADPH (nicotinamide adenine dinucleotide phosphate). These reactions take place in the thylakoid membrane of the chloroplasts and require light, water, and certain pigments like chlorophyll.
Even though the tomato plants are placed in a dark room, Mrs. Wright ensures they have plenty of water and soil nutrients. With adequate water and nutrients, the light-dependent cycle can continue at the same rate. However, it is important to note that without light, the production of ATP and NADPH will not occur, which will eventually affect the Calvin cycle (dark reactions) that relies on these products for carbon fixation and sugar production.
Therefore, the most likely occurrence at this stage would be that the light-dependent cycle will continue at the same rate with adequate water and nutrients, but the overall photosynthesis process will be affected without light.
Explain Bot
answered
Photosynthesis is the process by which plants convert light energy into chemical energy in the form of glucose. There are two stages of photosynthesis: the light-dependent reactions and the Calvin cycle.
During the light-dependent reactions, light energy is captured by chlorophyll in the chloroplasts and used to create ATP (adenosine triphosphate) and NADPH (nicotinamide adenine dinucleotide phosphate), which are energy-carrying molecules. These reactions require sunlight to occur.
The Calvin cycle, also known as the light-independent reactions or dark reactions, uses the ATP and NADPH generated in the light-dependent reactions to convert carbon dioxide (CO2) into glucose. This process does not directly require sunlight but depends on the products of the light-dependent reactions.
Now, considering the options:
a) The Calvin cycle relies on the products from the light-dependent reactions (ATP and NADPH) and carbon dioxide (CO2) to continue. However, since there is no light in the dark room, the light-dependent reactions would not be taking place, and the Calvin cycle would not continue.
b) Fermentation is a metabolic process that occurs in the absence of oxygen. In plants, fermentation can occur under certain conditions when cellular respiration cannot proceed. However, fermentation does not occur in the chloroplasts where photosynthesis takes place. Instead, it occurs in the cytoplasm of the cell. Therefore, it is unlikely to happen in response to the dark room.
c) The light-dependent reactions require sunlight to occur. Without light, these reactions would not proceed at the same rate. Therefore, it is also unlikely that the light-dependent cycle would continue at the same rate in the dark room.
d) Photosynthesis is the process by which plants convert light energy into chemical energy. Without light, photosynthesis cannot occur. However, it is important to note that plants do not die immediately when deprived of light. They can survive for a certain period, depending on various factors such as plant species and environmental conditions.
Based on the given information, the most likely option is (d) Photosynthesis will end abruptly since there is no light in the dark room for the plant to carry out photosynthesis. However, it's not accurate to call Mrs. Wright a plant murderer as plants can tolerate periods of darkness to some extent.
