Answer:
Part 1:
The energy storage molecules will start depleting at a higher rate.
Step-by-step explanation:
• Since no sunlight is present and the space station has sealed the plant
(containing chlorophyll), will completely depend on energy storage molecules such as Fat, Starch, sugars, etc.
• This will result in reduced growth, a halt in growth, and finally a reduction in its production of vegetables and fruits. If the situation does not change (the plant doesn't receive sunlight for a longer time), then the plant will ultimately die.
• Moreover, photosynthesis does not take place and the oxygen released during photosynthesis is lost. Plants use oxygen in chemical reactions just as animals use it in breathing. These reactions produce carbon dioxide but its amount is less than the oxygen produced during photosynthesis.
• As a collective result, the amount of carbon dioxide will increase in the sealed space station, and moreover the fruits and vegetables produced for astronauts to consume will decrease due to a growth halt in plants.
• Hence, both the astronauts and plants will eventually become dependent solely on their energy storage molecules. The molecules will start depleting at a higher rate.
Part 2:
According to this question, the aquarium contains water, plants, and fish. The glass of the aquarium is transparent and allows the passage of light. Plants are a unique set of organisms that have the ability to produce their own food (organic molecule) using the energy from the light which they absorb the Chlorophyll pigment in their Chloroplast. This process carried out by plants is called photosynthesis.
Carbon dioxide, which is a compound of carbon, is an important component needed for photosynthesis. It is released when living organisms undergo respiration. The released CO2 is then absorbed by plants to produce their food (glucose) during photosynthesis. The fish in the aquarium is a heterotroph that relies on the plants for its carbon source. It feeds on the plants to get carbon compounds. Therefore, carbon moves from the plants to the fish in the aquarium.
The amount of carbon in form of carbon dioxide (CO2) decreases when the light was switched on in the aquarium due to the process of photosynthesis carried out by the plants.
6CO2 + 6H2O + light -----> C6H12O6 + 6O2
Step-by-step explanation: