Group+1

​

1. Each student needs to upload their word document from the H drive. Click on the edit button to the right. Click on the image that looks a picture with an orange circle and green and blue. This allows you to upload your document. 2. Once all 4 essays are uploaded- each of you needs to read one other students work. 3. You can then make comments below their hyperlink. Make sure you are in the edit page. Let them know 2 positive comments and 2 constructive criticisms. How is their essay good and how can it be better?\

Christa Gesicki October 20, 2009 Block 7/8 **__ Photosynthesis vs. Cellular Respiration __** Photosynthesis and cellular respiration have both similarities, and differences. Both create energy, but photosynthesis makes energy through plant chloroplasts, where as cellular respiration is a process through animals and humans through the cytoplasm. This shows that photosynthesis and cell respiration have the same outcome, but different processes to finish the task. Photosynthesis and cellular respiration do have their similarities, but obviously have more differences. Photosynthesis is a process that takes in light energy through the thylakoid located in the chloroplast. The chloroplast turns the light into oxygen that diffuses out of the cell, which creates ATP (energy molecules). This is the light dependent cycle. Another cycle is the Calvin cycle. This is when a plant makes glucose energy that strengthens the cell wall, and helps the plant grow. Photosynthesis is a process through an autotroph (plant), where as cellular respiration is a process through a heterotroph (an animal or person) that gives it energy. Cellular respiration is the process that people or animals (and plants) make energy. In order to make ATP molecules you need 2 ATP molecules already in a cell this process is called glycolysis. In this process glucose (sugars) are broken down into pyruvic acids, and 2 more ATP cells. From glycolysis the cell either goes through a process with oxygen or without oxygen. Without oxygen is the process of fermentation. With oxygen in the cell you would use either the process of ETC (Electron Transport Chain) or the Krebs Cycle, which are both located in the mitochondria. Through the process of glycolysis you make 2 ATP, in the Krebs Cycle you make 2 ATP, and the ETC process makes 32 ATP. This shows that the processes of photosynthesis and cell respiration have very different reactions, and cycles. Though there are many differences between cell respiration, and photosynthesis, there are also a few similarities. Both make energy, though the processes are different the end result (energy) is the same. They also both occur in cells. Photosynthesis and cell respiration also have different ways of making energy. There’s not just one way to make energy.

Cristian dacruz Photosynthesis and Cellular respiration Photosynthesis and cellular respiration are two things that are necessary for life on earth. They are both different but need each other because each makes the product that the other uses as reactants. Those products are what we need to live. Photosynthesis’ reactants are CO2 and H2O its products are C6­H12O6 and O2. The location where photosynthesis takes place is in the chloroplast. The chloroplast is made up of the stroma which is a gel like material that surrounds the thylakoids; thylakoids are disk shaped structures containing photosynthetic pigments. Photosynthesis takes place in autotrophs. This process is important to life because it makes sugars and the oxygen we need to live. The two stages of photosynthesis are light reaction and Calvin cycle. The forms of energy change from light energy to ATP and then to ADP. Plants are light dependent of colors red, blue and violet. They use chemical energy to power themselves. Cellular respiration’s reactants are C6H12O6 and O2 and its products are CO2 and H2O. The location this takes place in, is the mitochondria. This is in both autotrophs and heterotroph cells. This process is important to life because it produces H2O which we need to live and CO2 that is what plants need to make O2 that we need to live. The order of the three stages of aerobic respiration is glycolisis then Krebs cycle and electron transport. The cellular respiration cycle first produces 2 ATP in glycolisis which starts in the cytoplasm, and then pyruvic acid moves inside the mitochondria. 2 ATP in Krebs cycle and then 32 ATP in the Electric transport chain. Humans are creating an imbalance in ecosystems. This is evident because they’re cutting down trees that should be producing O2 and C6H12O6. Now the Co2 levels are building up. This is directly connected to photosynthesis and Cellular respiration because now there are not as many plants to do this as there was before. This causes pollution with CO2 that could be deadly. To summarize all this both of them are important to the ecosystem and need each other to survive. Also this shows how both animal and plant need each other not only for sustenance but also for producing the materials necessary for life. These are C6H12O6, O2, Co2 and H2O.

Paige Gomez

Cell Respiration vs. Photosynthesis Photosynthesis and cell respiration are two vital cycles. Each creates energy for the cell and each contributes to our atmosphere. The purpose of these two cycles is to convert either light energy or mechanical energy, into chemical energy the cells can use. Although these two processes may seem very similar, there are also many differences distinguishing one from the other.

Photosynthesis is the process by which autotrophs make energy. Plant cells use water, carbon dioxide, and light energy to create the energy molecule, ATP. This process requires six carbon dioxide molecules and 6 water molecules. The product of this process is one glucose molecule and six oxygen molecules. Photosynthesis takes place in the chloroplast of the cell. Within the chloroplast, there are disk shaped structures called thylakoids. This is where the light dependent reaction occurs. Water molecules travel into the thylakoids and combined with the light energy from the sun, these molecules are converted to oxygen. The Calvin Cycle also takes place in the chloroplast, but it takes place in the stroma. Carbon dioxide molecules are combined with the light reaction in the thylakoids and this creates ATP.

Cell respiration is the same general process as photosynthesis. Like photosynthesis, cell respiration is a process to make ATP for energy. However, unlike photosynthesis, cell respiration occurs in heterotrophs or animal cells, in the mitochondria and cytoplasm. There are three different cycles in cell respiration compared to the two in photosynthesis. It begins with Glycolysis, where 2 ATP molecules are made from breaking down a glucose molecule. In the second cycle, the Krebs Cycle, another 2 ATP molecules are made and in the third and final cycle, Electron Transport Chain or ETC, another 32 ATP molecules are created. In total, cell respiration creates 36 molecules of ATP for energy. Some of the energy is used and what remains is converted to heat energy.

The chemical equation for photosynthesis is 6CO2+6H2O → C6H12O6+6O2. This means, the reactants are carbon dioxide and water and the products are glucose and oxygen. The chemical equation for cell respiration is C6 H12O6+6O2 → 6CO2+6H2O. The reactants are glucose and oxygen and the products are carbon dioxide and water. The equations for photosynthesis and cell respiration are exactly opposite. The products of one cycle are the reactants of the other.

Photosynthesis and cell respiration are two inter-dependent cycles. Without one, the other would not be able to function. They both produce energy, in different ways, and for different organisms.

Ryan Johnson  **__Photosynthesis vs. __****__cell respiration __**   <span style="color: #000000; font-family: 'Times New Roman',Times,serif; font-size: 14pt;"> Photosynthesis and cellular respiration are very similar but very different from each other. Photosynthesis is the process in which plant change sunlight to a useable form of energy. Cellular respiration takes the <span style="color: #9d1010; font-family: 'Times New Roman',Times,serif; font-size: 14pt;">chemical(cd) <span style="color: #000000; font-family: 'Times New Roman',Times,serif; font-size: 14pt;"> energy from food and turns it into kinetic energy in the form of ATP. The equation for photosynthesis is CO2 +H2O C6H12O6+O2. The reactants for this equation are CO2 and H2O, and the products are C6H12O6 and O2. The equation for cellular respiration is C6H12O6+O2 CO2+H2O. The reactants are C6H12O6 and O2; the products are CO2 and H2O. <span style="font-family: 'Times New Roman','serif'; font-size: 12pt;"> <span style="font-family: 'Times New Roman','serif'; font-size: 14pt;">A major difference between the two processes is the location. Photosynthesis can only be performed in autotrophs. It takes place in the chloroplasts. They take the sunlight into the chloroplasts and take make energy and give off oxygen. But Cellular respiration can take place in an autotrophs and heterotrophs. The mitochondria perform this process. They take the oxygen, water, and glucose to produce energy for the plants/animals/humans. Photosynthesis is important to life because it provides oxygen for all the other organisms on the earth. We need oxygen for cellular respiration to take place and if it doesn’t take place we would not have energy and we would not be living. The two processes for photosynthesis are the light dependent + reaction and the Calvin cycle or light independent cycle. It goes from a chemical energy into a kinetic energy Cellular respiration is when it uses glycol <span style="color: #9b0d0d; font-family: 'Times New Roman','serif'; font-size: 14pt;">ysis (cd) <span style="font-family: 'Times New Roman','serif'; font-size: 14pt;">, Krebs cycle, and ETC ( Electron Transport Chain in membrane). This process is important to life because it provides energy for plants as well as humans and animals. This cycle gives us energy to move and live without it we would die as well without photosynthesis. <span style="font-family: 'Times New Roman','serif'; font-size: 12pt;">