Photosynthesis and respiration relationship

How Are Photosynthesis & Cellular Respiration Related? | Sciencing

photosynthesis and respiration relationship

Jan 28, Photosynthesis Photosynthesis is nothing but an energy entrapping process. Plants entrap solar energy and store them as a chemical compound in most of the. Photosynthesis and Respiration. What is the relationship between photosynthesis and cellular respiration? Photosynthesis and cellular respiration are important. Oct 25, Photosynthesis and cellular respiration are complementary biochemical reactions. Photosynthesis requires the products of respiration, while.

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  • Explains the connection between photosynthesis and cellular respiration.

Here, CO2 molecules are broken down and converted into sugars and other compounds. The Calvin Cycle is repeated twice in order to yield one molecule of glucose. Cellular Respiration Cellular respiration takes place in the same way in both plants and animals. Living cells obtain the products of photosynthesis sugar molecules and undergo cellular respiration to produce ATP molecules.

Some cells respire aerobically, using oxygen, while others undergo anaerobic respiration, without using oxygen.

photosynthesis and respiration relationship

The process involves a set of chemical reactions to convert chemical energy from the glucose molecules into ATP molecules. Oxygen plays no part during this stage, so it is called anaerobic respiration.

photosynthesis and respiration relationship

Aerobic Respiration This process takes place in specialized structures within the cell called mitochondria, and uses the products of glycolysis, the pyruvate molecules, to release energy, along with CO2 and water as the by-products of the reaction.

The energy released is stored in the form of ATP molecules.

What is the relationship between photosynthesis and cellular respiration?

Usually, a total of 38 ATP molecules is produced. Differences between Photosynthesis and Cellular Respiration Photosynthesis takes place in two stages of the light reactions and the dark reactions. Cellular respiration involves aerobic glycolysis and anaerobic respiration. Photosynthesis takes place only when there is sunlight. This energy is used to fuel growth and all of the normal cellular functions.

All You Need to Know About Photosynthesis and Cellular Respiration

Carbon dioxide and water are formed as by-products of respiration Figure 4. Simple equation describing the molecules required for respiration and its products.

Respiration occurs in all living cells, including leaves and roots. Since respiration does not require light energy, it can be conducted at night or during the day.

photosynthesis and respiration relationship

However, respiration does require oxygen which can be problematic for roots which are overwatered or in soils with poor drainage. If roots are inundated for long periods of time they cannot take up oxygen and convert glucose to maintain cell metabolic processes.

As a result, waterlogging and excessive irrigation can deprive roots of oxygen, kill root tissue, damage trees, and reduce yield. There is a lot of water on the earth, and every water molecule is composed of two hydrogen atoms and one oxygen atom. In order to take the hydrogen it needs to build glucose molecules, the plant uses the energy from the sun to break the water molecule apart, taking electrons and hydrogen from it and releasing the oxygen into the air.

The electrons it takes are put into an electron transport system, where they are used to produce energy molecules called ATP that are used to build the glucose molecule-- all made possible by the sun's energy.

Photosynthesis & Respiration - Fruit & Nut Research & Information Center Education

Thus, during photosynthesis a plant consumes water, carbon dioxide, and light energy, and produces glucose and oxygen. The sugar glucose is important because it is necessary for cellular respiration.

photosynthesis and respiration relationship

During cellular respiration, the chemical energy in the glucose molecule is converted into a form that the plant can use for growth and reproduction. In the first step of respiration, called glycolysis, the glucose molecule is broken down into two smaller molecules called pyruvate, and a little energy is released in the form of ATP.

This step in respiration does not require any oxygen and is therefore called anaerobic respiration. In the second step of respiration, the pyruvate molecules are rearranged and combined and rearranged again in a cycle. While the molecules are being rearranged in this cycle, carbon dioxide is produced, and electrons are pulled off and passed into an electron transport system which, just as in photosynthesis, generates a lot of ATP for the plant to use for growth and reproduction.

This last step requires oxygen, and therefore is called aerobic respiration. Thus, the final result of cellular respiration is that the plant consumes glucose and oxygen and produces carbon dioxide, water, and ATP energy molecules.

At first, this doesn't seem to make any sense! If the plant can use the energy from the sun to make ATP, why does it go through all the trouble of then using up the ATP to make glucose, just so it can get ATP again? There are two reasons why the plant does this. First, in addition to ATP, the plant needs materials to grow. Glucose is an important building block that is necessary to produce all of the proteins, DNA, cells, tissues, etc. Second, one problem with the sun is that it goes away every night, and during winter it isn't very bright.

The plant needs energy all of the time. So, by producing glucose, the plant can store this molecule and then use it to produce energy during the night and over winter when there isn't enough sun to provide good photosynthesis. It is very interesting how photosynthesis and cellular respiration help each other.