Photosynthesis and Respiration:
Cellular respiration and photosynthesis are the two main processes carry out by most living organisms to attain energy. Whereas photosynthesis is performed by most plants that can make their own food, most animals achieve their energy necessities through cellular respiration.
Photosynthesis:
Light-dependent Reactions and Light-independent Reactions or dark reactions or Calvin Cycle are the stages of chemical reactions during the process of photosynthesis.
Light Reactions:
During the light reaction solar energy is transformed into chemical energy. The second stage is when synthesis (Calvin Cycle) uses the energy from the light reaction and change CO2 taken from the atmosphere into sugar. The Calvin cycle uses ATP and NADPH to transform three molecules of CO2 to one molecule of a 3-carbon sugar.
…show more content…
The beginning of the cycle started with the amalgamation of CO2 into organic molecules. This process; carbon fixation involves the reduction including electrons delivered by NADPH. Since "ATP from the light reactions influences parts of the Calvin cycle, it is the Calvin cycle that creates sugar, with the aid of ATP and NADPH from the light reaction". The raw materials for anabolic pathways and fuel for respiration is provided when Carbohydrates takes form of disaccharide sucrose travel through the veins to non-photosynthetic cells, and formation of the extracellular polysaccharide cellulose. Cellulose is the utmost plentiful organic molecule, as well as the main ingredient of cell walls in plants. The sugar produced in the chloroplasts provides plants with chemical energy and carbon frameworks to make all the major organic molecules of cells. Photosynthesis manufactures over 500 billion metric tons of carbohydrates. It is also responsible for the occurrence of oxygen in our
+ ATP Although plants and animals have different methods of obtaining glucose, the cell respiration process occurs in both types of organisms. Many external factors in the environment may affect the organism's’ rate of respiration such as the temperature of the surrounding,
Both photosynthesis and aerobic respiration are necessary processes in plants and provide energy. Aerobic respiration uses glucose (sugar) and oxygen to form carbon dioxide and energy while photosynthesis uses carbon dioxide and water to form glucose and oxygen. Photosynthesis may only occur during the day time while aerobic respiration occurs all the time. Since an increase in carbon dioxide levels indicates an increase in aerobic respiration and a decrease in photosynthesis, we can measure the net exchange of carbon dioxide levels and determine whether more photosynthesis or aerobic respiration at a particular time has occurred.
Quinn Nguyen Floating Leaf Disk Photosynthesis Lab Conclusion: Graph your results for all 3 trials on one graph. Label the graph, both axes, and provide a legend to distinguish each trial. What was the rate of photosynthesis for each variable? How many leaves floated per minute? Rate of photosynthesis (leaves/min) Spinach: (2-0)/25 = 0.08
The leaves then make ATP, which reduces NADP to NADPH, and add CO2 into organic molecules. When the leaves go through the process of a light-dependent reaction by being placed in water, oxygen is created through photosynthesis and is released into the interior of the leaf. This causes the leaf to rise. However, since cellular respiration is happening at the same time, the oxygen is also being used up. This means that the leaves must
The process of photosynthesis is vital for the survival of most life on Earth. Without photosynthesis plant life would be unable to create its own food and sustain themselves causing them to die. Earth would lack the oxygen and energy that plant life provides. Producers are the main source of energy for living organisms because they can directly absorb light energy and turn it into chemical energy. Animals then eat the plants which give them a portion of that energy.
Alexandra Fowler Due: 10/25/2015 Metabolism Exam Answer the following questions as completely and concisely as possible. Some answers may be a single word, but for more detailed responses, keep you answer to 3 sentences or less. What is the electron donor of an organism growing chemorganotrophically? The electron donor of an organism growing chemorganotrophically is an organic compound such as glucose, acetate, etc.
All organisms use food molecules, like glucose to produce ATP. The production of ATP occurs during cellular respiration. ATP provides the cells with energy that is necessary to produce oxygen. The seeds/plants are autotrophic organisms, which produce their food from the energy that the light provides them. To release the stored energy within the food molecules, the germinated seeds carry out respiration and the release of carbon dioxide.
One of the focuses of this semester was the ability to identify biological processes that require energy and explain why they require energy. In the work I completed I demonstrated being able to accomplish this. This occurred in several different projects, including the cellular respiration lab involving the respiration rate of germinating seeds, the potato core lab and the photosynthesis lab. In these labs, we were able to identify the biological processes that required energy for the different processes to take place to allow germination to occur.
Photosynthesis takes place in the chloroplasts; green organelles inside plant cells. The thylakoid inside Chloroplasts absorb the sunlight energy needed for photosynthesis. The pigment in the thylakoid absorbs light; however, plants reflect green light. This gives plants their color. If different colors of light are shown on spinach leaves and CO2 consumption is measured, then the spinach leaves given green light will consume the least amount of CO2 due to reduced photosynthesis activity.
Photoautotrophs are organisms that make their own energy via the sun. These are organisms such as phytoplankton,
Cellular Respiration One of the main essentials of life that all organisms need in order to function in our world is, energy. We receive that energy from the food that we eat. Cellular respiration is the most efficient way for a cell to receive the energy stored in food. In cellular respiration, a catabolic pathway, which breaks down the molecules into smaller units, in order to produce adenosine triphosphate, also known as, ATP. ATP, is used by cells in the act of regular cellular operations, it is a “high energy” molecule.
photosynthesis and cellular respiration are extremely important in the cycle of energy to sustain life simply because nutrients would not metabolize in a productive manner. Both have numerous stages in which the process of energy occurs, and relationships with organelles located in the eukaryotic cell. Photosynthesis is a process by which green plant and other organism manufacture their food using sunlight to synthesize foods from carbon dioxide and water while cellular respiration is the oxidation of organic compounds that occurs within cells, producing energy for cellular processes. Photosynthesis occurs within organelles called chloroplasts. These organelles can absorb light, and are located inside of leaves.
Sugar/ glucose is an important carbohydrate that can be made during photosynthesis from water and carbon dioxide, using energy from sunlight. Carbon dioxide is given off as a waste product when energy is released by the breaking down of glucose. This can be used by plant cells in the process of photosynthesis to form new carbohydrates. Yeast is a single-celled fungus that can break down sugars (glucose) to help produce carbon dioxide. Research Question
Algae and autotrophs carry out oxygen there for generating photosynthesis, and then they use the
Role of Enzymes in Metabolic Pathways Summary Metabolic pathways are a sequences of steps found in biochemical reactions in which the product of one reaction is the substrate for the next reaction [3]. Metabolic pathways most likely happen in specific locations in the cell. The control of any metabolic process depends on control of the enzymes responsible for the reactions occur in the pathways. After food is added to the body, molecules in the digestive system called enzymes break proteins down into fats into fatty acids, amino acids, and carbohydrates into simple sugars (for example, glucose). Enzymes plays an important role in the different metabolic pathways [5].