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Elodea plant experiment conclusion
Investigating the process of photosynthesis
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Elodea plant experiment conclusion
Investigating the process of photosynthesis
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LABORATORY REPORT EXERCISE #5 INTRODUCTION TO THE COMPOUND LIGHT MICROSCOPE, PLANT AND ANIMAL CELLS Name_______________________________Section_____Teacher______________Date________ PRE-LAB QUESTIONS - answer the following questions using your textbook and valid internet sources. Be sure to cite your sources at the end of the prelab. You can type your answers to all questions except #1 and #9 directly into this document and then submit via Canvas. Type the answers for #1 and #9 at the end of the document. 1.
Part 1: It would effect everything on the planet, plants would be less able to produce the suns energy and living organisms would be in big trouble. A short term effect would be decreasing plant populations and a long term effect would be a decreasing population of every organism on the planet. i. Much like the first one, if the sun was completely blocked producers could not produce, thus consumers could not eat them and get energy and the decompress could not break down the organisms if they're not alive. It would result in the overall extinction of living organisms on earth. ii.
The most important result from this experiment is that it suggested that the increase of Carbon Dioxide, will drastically increase the growth mountain maple in the covered (from the sun) parts in a forest, in the meantime any increase in the temperature of the soil will nullify the increase of light, as we know is to be the main ingredient for photosynthesis. 5. The authors do not use any citations in the
7. In this experiment, if the sucrose concentration were increased to 70 g/l would you expect sucrase activity to be significantly higher than the activity at 35 g/l. Explain your answer. No, because based on the results once it reached 30 g/l 35 g/l the results had stayed the same. There, the activity is lessening and coming to what looks like a plateau. 8.
Investigable Question: How does light affect the protozoan population? Background: We had 3 jars, all the jars had 90 ml of water, and 0.9 grams of grass. We had saran wrap on the top of all the jars to keep the fruit flies out. Aside from making sure our water, and grass are the same.
Science 1. Free ears in dogs are controlled by dominant allele (F), and attached ears are controlled by the recessive allele (f). In addition, Short dogs is due to a dominant allele(S), and long hair is due to a recessive allele (s). Which of the following is the genotype of the dogs with free ears and short hair? a. ffss b. FfSs c. ffSs d. Ffss 2.
As stated in the background of the lab, "seeds are considered to be in a period of dormancy, where they metabolize stored energy at a very slow rate while the seed is still considered alive" (Hands On Labs). During germination, the developing plant embryo uses the stored food supply in the seed for cellular energy and growth. Thus, cellular respiration is taking place as the seeds grow. Without water the seeds cannot begin germinating thus the seeds in test tube N did not undergo photosynthesis(Hands On Labs). B. Were the seeds in the “G” tube undergoing both photosynthesis and respiration, only photosynthesis, or only respiration?
Because carbon dioxide is absorbed by the plant during photosynthesis less carbon dioxide present in the chamber is a sign that photosynthesis is working. The four lights used for this experiment range across the light spectrum on both sides in order to test a wider variety of wavelengths. All lights will be placed directly on the spinach leaf at the same distance so as not to give any spinach leaf a different light intensity, which could affect the data. This experiment will be able to show which light, ranging across the light spectrum, will allow the Spinach to perform photosynthesis more efficiently.
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.
Research Proposal Leslie Macias Science Fair Proposal Leslie Macias Everman Joe C. Bean High School Abstract Plants need sunlight and water to grow. For this project I will be using two plants that are as identical as possible (both barely starting to grow), sunlight, and a UV light. I will find out whether UV light affects plant growth or not. Background
Use these results to determine the product concentration, using Beer-Lambert’s Law: A= ɛCl (where A is the absorbance, ɛ is the molar absorptivity, C is the product concentration and l is the length of solution that the light passes through). Calculate the product concentrations at every minute for 10 minutes for all 7 of the test tubes using Beer-Lambert’s Law. Plot a graph of product concentration vs. time and then use the gradients of the 7 test tubes to determine the velocities of the reaction. After calculating the velocities, plot a Michaelis-Menten graph of velocity vs. substrate concentration.
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 and cellular respiration are crucial for our existence because without it, we wouldn’t be able to function properly. We need them to survive. Photosynthesis is the process in which plants use sunlight and water to produce oxygen. If photosynthesis didn’t exist, we wouldn’t exist.
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.
Background Information: In this experiment I will be investigating the impact of light intensity on the rate of water uptake, due to transpiration, by attaching a shoot from a leafy plant in the capillary tube of a potometer, and then measuring how long it takes for a bubble to move a set distance. The faster the bubble moves, the greater the rate of transpiration. I will be placing one plant in an environment where it is exposed to high-light intensities, and another plant in an environment where it is exposed to low-light intensities. Transpiration is the process of the transport of water and nutrients up the the plant from the roots to the leaves.