How do underwater plants do photosynthesis?
Just like plants on land, algae photosynthesize — essentially using the sun’s rays to turn molecules of carbon dioxide and water into sugar and oxygen gas. Underwater, those teeny tiny oxygen bubbles rush upward. As these bubbles detach from the plant, they make a short “ping” sound, the researchers found.
What’s the word equation for photosynthesis?
The process of photosynthesis is commonly written as: 6CO2 + 6H2O → C6H12O6 + 6O2. This means that the reactants, six carbon dioxide molecules and six water molecules, are converted by light energy captured by chlorophyll (implied by the arrow) into a sugar molecule and six oxygen molecules, the products.
When submerging a leaf in water what happens explain?
When the leaf is submerged it is using light to continue the process of photosynthesis. Part of this process is to let oxygen out of the leaves. It is this oxygen that you are seeing as bubbles in the water. So while a plant does not breathe like we do (using lungs) it does take in and release air.
Why are aquatic plants used for photosynthesis experiment?
A common experiment when studying plant biology is investigating factors affecting the rate of photosynthesis. Plants produce oxygen which is invisible and odorless, so the experiment is usually carried out with water plants; the bubbles of oxygen produced are observed.
What are 2 important jobs of photosynthesis?
Two important “jobs” of photosynthesis are generating oxygen for oxygen-breathing animals, and making all the world’s food. What gas does the child provide for the plant to use? The child provides Carbon dioxide for the plant to use.
Which set of reactions uses h20 and produces 02?
The light-dependent reactions of photosynthesis use water and produce oxygen.
What happened in Priestley’s experiment?
It is now understood that Priestley’s experiment showed that plants take in carbon dioxide from exhaled air and release oxygen. Thus, the mouse was able to survive for a short amount of time in a container with a plant.
What does Ingenhousz’s experiment prove?
In 1779 Ingenhousz found out that in the presence of light, plants give off bubbles from their green areas, while in the shade these bubbles stop. He realised that more oxygen is given off in the light than carbon dioxide in the dark and so proved that some of the mass of plants comes from the soil.
How do hydrogen ions escape the thylakoid in photosynthesis?
Hydrogen ions have a positive charge. Like in magnets, the same charges repel, so the hydrogen ions want to get away from each other. They escape the thylakoid through a membrane protein called ATP synthase. By moving through the protein they give it power, like water moving through a dam.
How are spinach disks cut out for photosynthesis?
Use the metal hole punch to cut out 20 circular disks from the fresh spinach leaves, 10 for a control and 10 for a treatment. Separate the two parts of the syringe, drop 10 of the spinach disks inside, reassemble the syringe. Push the plunger almost to the bottom but don’t crush the disks.
How long does it take for a disk to sink in photosynthesis?
After you remove the light and place the cups in the dark, the treatment disks should stop undergoing photosynthesis and the disks should begin to sink. For comparison purposes, each lab group that does this procedure should report the time at which half (5) of the disks is floating. In the example below, that time would be about 11.5 minutes.
What makes a synthetic version of photosynthesis viable?
Wrighton and others in the hunt to develop a synthetic version of the photosynthetic process that would generate commercially viable energy accept these two fundamental provisos: it must be cheap, and its raw material inputs must be abundant.