What are the benefits of photosynthesis?
Green plants and trees use photosynthesis to make food from sunlight, carbon dioxide and water in the atmosphere: It is their primary source of energy. The importance of photosynthesis in our life is the oxygen it produces. Without photosynthesis there would be little to no oxygen on the planet.
What are the 2 main benefits of photosynthesis for other organisms?
They use the process of photosynthesis to transform water, sunlight, and carbon dioxide into oxygen, and simple sugars that the plant uses as fuel. These primary producers form the base of an ecosystem and fuel the next trophic levels. Without this process, life on Earth as we know it would not be possible.
What is the general purpose of photosystem II?
Photosystem II is the first link in the chain of photosynthesis. It captures photons and uses the energy to extract electrons from water molecules.
What is Step 2 of photosynthesis?
Stage II is called the Calvin cycle. This stage combines carbon from carbon dioxide in the air and uses the chemical energy in ATP and NADPH to make glucose.
What are the benefits for humans and animals by the process of photosynthesis?
The energy we get from the food we eat originally came from plants, which absorbed energy from the sun. Photosynthesis is also important because of the oxygen it produces. They recycle the carbon dioxide we breathe out and turn it back into oxygen so that we never run out.
What type of organisms benefit from photosynthesis?
Photosynthesis uses the energy of the sun to make sugars from carbon dioxide and water. This process sustains plants and some other organisms, such as algae and phytoplankton. Photosynthetic organisms are known as the “primary producers” of the food chain. They are the foundation on which all other organisms depend.
What happens in the absence of photosystem 2?
this result in the production of ATP only. there is no oxidation of water and no reduction of CO2,and the process of photosynthesis is strongly inhibited. in fact, many herbicides kill plants by inhibiting photo system II. some anaerobic microorganisms have Photo system I only.
How does photosystem 2 generate ATP?
Electrons are transferred sequentially between the two photosystems, with photosystem I acting to generate NADPH and photosystem II acting to generate ATP. The pathway of electron flow starts at photosystem II, which is homologous to the photosynthetic reaction center of R.
What are the 2 types of reactions in photosynthesis?
There are two main stages of photosynthesis: the light-dependent reactions and the Calvin cycle.
How does photosynthesis benefit organisms that are not plants?
Plants capture energy from sunlight and use it to synthesize organic molecules. How does photosynthesis benefit organisms that are not plants? Select all that apply. It produces oxygen that can be used for cellular respiration and it produces organic molecules that other organisms use as food.
What are two products of photosynthesis?
Photosynthesis converts carbon dioxide and water into oxygen and glucose. Glucose is used as food by the plant and oxygen is a by-product. Cellular respiration converts oxygen and glucose into water and carbon dioxide.
How does photosynthesis benefit heterotrophs?
First, photosynthesis consumes carbon dioxide (a waste product of respiration) and produces oxygen (necessary for respiration). Heterotrophs therefore depend on photosynthesis as a source of oxygen. In addition, photosynthesis sustains the organisms that heterotrophs consume in order to stay alive.
Does photosystem 2 produce ATP?
This is accomplished by the use of two different photosystems in the light reactions of photosynthesis, one to generate ATP and the other to generate NADPH. Electrons are transferred sequentially between the two photosystems, with photosystem I acting to generate NADPH and photosystem II acting to generate ATP.
Why are both photosystem I and II required for photosynthesis?
Photosystem I and photosystem II are the two multi-protein complexes that contain the pigments necessary to harvest photons and use light energy to catalyse the primary photosynthetic endergonic reactions producing high energy compounds.
What is process of photosynthesis?
photosynthesis, the process by which green plants and certain other organisms transform light energy into chemical energy. During photosynthesis in green plants, light energy is captured and used to convert water, carbon dioxide, and minerals into oxygen and energy-rich organic compounds.
What is photosynthesis answer?
Photosynthesis is a process by which phototrophs convert light energy into chemical energy, which is later used to fuel cellular activities. The chemical energy is stored in the form of sugars, which are created from water and carbon dioxide.
What are three main differences between photosystem 1 and photosystem 2?
Key Differences between Photosystem 1 and Photosystem 2
| Photosystem 1 | Photosystem 2 |
|---|---|
| Pigment richly supplied with | |
| Chlorophyll a is more compared to chlorophyll b | Chlorophyll b is more compared to chlorophyll a |
| Involved in the photolysis of water | |
| No | Yes |