Autotrophs store chemical energy in carbohydrate food molecules they build themselves. Most autotrophs use sunlight to make food, the process is called photosynthesis. Plants, algae, and some bacteria can use photosynthesis. The reactants of photosynthesis are carbon dioxide and water, captures energy into chemical bonds. The products are sugar and oxygen.
Task 1 When you exhale onto a window it steams up because your breath contains water vapour and it causes water vapour to condense forming small water droplets. We breathe in oxygen and some nitrogen which is essential for life. We exhale carbon dioxide that can be tested for limewater because carbon dioxide dissolves in water to form carbonic acid (H2 C03). Glucose is a reactant of respiration. The glucose in your blood comes from carbohydrates in your food.
Ultimately, oxygen is produced, than released, along with carbohydrates used for food. Photosynthesis is, in a nutshell, a chemical process through which plants, some bacteria and algae, produce glucose and oxygen from carbon dioxide and water, using only light as a source of energy. In this experiment, we saw that even underwater plants (Elodea) respire, by exchanging carbon dioxide with the water, in the form of Carbonic Acid. When CO2 is used in photosynthesis, the level of Carbonic Acid drops. Thus, water living organisms have the ability to change the pH of their environment as they add or remove CO2.
The active site springs back to its original shape and is ready to receive fresh substrate. For enzymes to operate they must be able to make contact with the substrate; the enzyme or substrate or both must be in solution. Our cells are about 90% water and water is the medium in which most of our biochemistry takes place. The value shows that there is a positive correlation between the rate of reaction and hydrogen peroxide concentration. Catalase, or enzymes, drastically increases the rate of hydrogen peroxide decomposition.
This is very similar and related to the previously discussed objective of being able to identify biological processes that require energy. Modeling the way organisms capture and store free energy was achieved in several different labs, including the cellular respiration lab. In the lab, we modeled how an organism can capture and use energy through facilitating the germination of seeds. Germination is a very complex biological process that requires the capture and storage of energy for later use. Modeling this process allows further investigation and greater understanding of how energy is captured and used by
The released oxygen is attached onto the disks, allowing it to float to the top of the cup. The way the concentration of enzyme affect the rate of the reaction is because more concentration of enzyme the more active sites are present for the substrate to chemically react with. An enzyme is
There is no correlation because there is no graph in this lab. The results look this way because the DNA made a reaction to the ethanol, and the strawberry is a living organism. This relates to the cell theory because all living things are made from cells, which have DNA, organelles, and the membranes that need to be broken down. The membranes were broken down by adding extraction buffer to the mashed up
We could not grow no apples no watermelons, we could not grow anything. If we had honeybees in our world, it would be a better place to live on. Honeybees have been disappearing and going out of sight for years. Some of the people think the purpose of bees is only to make honey but there is so much more than that to bees. The insects which we call honeybees need and have to stay alive in our world.
The flow of oxygenated blood to the tissues helps deliver nutrients such as amino acids and electrolytes, water and oxygen. Also, it’s responsible for removing metabolic waste from the cells and disposing of carbon dioxide. The cardiovascular system’s anatomy varies throughout the body and is connected by the arteries, veins, and capillaries. The main organ of the cardiovascular system is the heart. It 's located in the upper torso, chest area, as are some of the body 's major blood vessels.
In this section I will explain how two of the body systems interrelate to perform a function. My two body systems are the cardiovascular system and the digestive system and how they work together to enable food to be digested. First of all, the digestive system works by passing food through the human system, whilst breaking it down and absorbing nutrients. The circulatory system transports the oxygen and other compounds through our bodies. These two work together to process and circulate nutrients so our cells can use them for fuel.