Photosynthesis Lab Report

The dissolved oxygen levels are much higher in this experiment than in the previous experiment.

The rate of photosynthesis can be determined different ways. Because oxygen is a product of photosynthesis and the Elodea plant is submerged in water, the oxygen is released in bubbles that rise to the surface of the water in the beaker. In this experiment, the rate of photosynthesis for each degree of light intensity can be measured by counting the number of bubbles released every 30 seconds for five minutes at each distance. The rate is the number of bubbles released per minute.

Photosynthesis is essential to all living organism such as animals and plants. Photosynthesis is a process used by plants and other autotrophs to capture light energy and use it to power chemical reaction that converts carbon dioxide and water into oxygen, carbohydrates and water. (Textbook: Principles of Biology). The reactants and the products of photosynthesis are:

Photosynthesis is the process in which plants consumed inorganic materials like solar light, carbon dioxide and water and converted it to an organic molecule like sugar and an inorganic gas like oxygen. Light is one of the major elements influencing the rate of photosynthesis; direct light concentration affects the noncyclic pathway (light

The way to get the full results of this lab was through the process of osmosis. Osmosis is the movement of water across a membrane into a more concentrated solution to reach an equilibrium. When regarding cells osmosis has three different terms that are used to describe their concentration. The first of these words is isotonic. Cells in an isotonic solution show that the water has no net movement and the amount of water that goes in is the same that goes out. Isotonic comes from the root iso, which means equal. This makes sense because the definition of isotonic is: same concentration. The second out of three words is hypotonic. Cells in a hypotonic

Life on Earth is dependent entirely on the energy from the Sun, not only to keep the planet at a suitable temperature but also to provide the energy required to sustain life. The energy of the Sun, in the form of photons, is actively captured by chlorophyll and related pigments present in photosynthetic organisms, like plants and algae. This captured energy is used to convert carbon dioxide into complex energy-rich molecules that can be used by themselves

A difference in the amount of air means that some of the bioreactors would have been able to hold more algae than others. Multiple people recorded the results of the experiment, and as a results, the machine used to calculate the amount of algae could have been calibrated differently. For example, the machine could of had a different nm set for different days. This would explain the unexpected results on day 10. The light the algae was placed in was different for all of the different temperatures meaning some would have grown better than

A random amount of soil, 40.00 grams, was chosen to be consistent throughout each section of the entire experiment. To gauge how much water would be needed to saturate the soil to 100%, two-times as much water was added to the soil, or 80 ml, and the mixture was stirred together. After waiting 1 minute, excess water was poured off, repeating the cycle until no more water was found to be pooling on the soil. The mixture was weighed and the original mass of the soil was subtracted from the current mass, producing the mass of the water at 100% saturation, or 61.25 ml. Sixty-one and one quarter mL was then multiplied by 0.25, 0.50, and 0.75 respectively to produce the amounts of water that would represent the soil at 25%, 50%, and 75% water saturation. These percentages were chosen because the extreme percentages, 0% and 100% saturation would have been avoided by the isopods

Photosynthesis is a huge concept to learn and understand in the field of biology. Plants have their own special way of using the ATP they produce. Photosynthesis is a process where plants harness the sunlight they receive and they produce carbohydrates, as well as oxygen for living things and other plants. Now the sunlight ultimately powers the process of

Photosynthesis is a vital process that autotrophs use to transfer light energy into chemical energy. Photosynthesis ultimately produces O2 and glucose. It, like many other biological processes, can be affected by environmental variables. The variable that we altered in the following experiment are intensity, light wavelengths, and pigment types. In order to do this, we conducted three experiments. In the first experiment, we examined the effect of light intensity by placing vials with chloroplasts with DPIP at different light distances in which the results varied. Initially, 30cm away was the most effective for photosynthesis. Then 24cm appeared to be the most effective. Followed by 49cm at minutes 25 and 30. In the second experiment, we

The goal of the experiment was to gather stomatal density prints from each set of leaves from our two environments (twenty total prints). It was important to keep our leaves separated and labeled to avoid confusion later in the data collecting. Colby, Marlee, Kamy, and I prepared the leaves and rubbed clean any leaves that felt dirty or fuzzy. Kamy took the leaves from near the water source and Marlee took the leaves from the dry source. Kamy and Marlee painted two thin coats of nail polish on sections of the leaves. We then began step 7 in the manual and carefully placed a strip of tape on the painted section of each leaf. After pressing down the tape and carefully lifting it from the leaf, the tape was placed on a glass microscope slide. We trimmed off any excess tape so that the slide would fit correctly under the microscope. Colby and I then examined each stomatal print under the microscope, starting at the lowest power and then working our way up to 40x. Colby would count the stomata first, and then I would follow and count what I saw. The stomata are the coffee bean shapes on the slide. On page 14 of the lab manual, there is a table to record the data that we found. The numbers of stomata that Colby and I counted were logged and then averaged for later

Have you ever really wondered how different variables can affect how plants go through photosynthesis? Well, in this experiment, the purpose was to see how various environmental conditions can affect the overall photosynthetic capacity of a specific plant. The factors, light, darkness, cold, and heat were applied to see how the different components would affect the photosynthesis on spinach plants. Each group was given a different factor to test. Out group was given the light factor. The hypothesis for this experiment is that when adding light as a factor, the light will affect the overall plant photosynthesis.

The light intensity was not taken into much account. The waterbaths were placed in 4 different sections of the lab, having some areas under the brightly-shone window and other in the shade. This may have also contributed to the collected results, with some being higher or lower than the others.

     Photosynthesis is a reproductive system that occurs in plants. The main components required for photosynthesizing are sunlight, energy, water and mineral from soil, and carbon dioxide from the air. Once these components are combined they

     Photosynthesis is a biochemical process in which plant, algae, and some bacteria harness the energy of light to produce food. Nearly all living things depend on energy produced from photosynthesis for their nourishment, making it vital to life on Earth. It is also responsible for producing the oxygen that makes up a large portion of the Earth¡¦s atmosphere. Factors that affect photosynthesis are light intensity and wave length, carbon dioxide concentration, and temperature.