The purpose of this experiment is to determine the pH of known substances by use of a pH color indicator of red cabbage and the use of a pH meter. As well as, to observe the pH changes in a substance by adding in more basic of acidic to buffered solutions and unbuffered solutions. This experiment will also will show how to calculate H3O+, OH- and pH by use of known values. In order to do this lab, there are a few key components one needs to know and understand first.…
The purpose of this laboratory experiment was to create a clear aqueous fertilizer that had a pH range of 6.0-7.0 with first three solid compounds the first day and then four solid compounds the second day. To complete this experiment, make calculations to find how much of each compound is needed in grams, use an analytical balance to measure out compounds accurately, mix the compounds in DI water until they are dissolved, test pH levels, effectively add acids or bases depending on pH level, and administrate EDTA when a precipitate has formed. When only components that include 0.06g Nitrogen, 0.0497g Phosphorous, and 0.0399g Potassium are combined, on the first day of the experiment, a very basic solution with a pH level of 13.0 formed. The addition of 18 droplets of hydrochloric acid lowered the pH level to 6.0. When combining components…
In order to exam the effects of auxin, gibberellins and abscisic acid on plant growth we generated an experiment to track the growth, specifically height of a corn seed. To begin, obtain two small planters, each with six individual compartments. Label one planter A and the other B. On the outside of the two small planters label five of the six compartments IAA, NAA, GA, ABA, and Control. The sixth compartment will not be used.…
The last three cups were filled with plain tap water. Next, measure all of the plants with a ruler. Place all of the measurements and recorded them onto a table. Around the same time measure the flowers and make observations on how they changed from day to day. Everyday for a week complete the same procedure from day…
Let these grow in indirect sunlight for 1 week. Measurement Procedure 1. Shake the conical tube to ensure that all matter is equally distributed within the water. 2. Place one drop of the water on a glass slide, and place the slide under the…
In four ziplock bags ten seeds of barely,with a papaertowel under each one, will be covered in diluted 2ml of laundry detergent. The concentration are 4%,1%,0.125%, and 0.25%. In this experiment, replicates and a control will be included. Since detergents are filled with toxins and harmful chemicals, it is hypothesized that seeds covered in high concentartions of laudry detergent will germinate slower than seeds covered in lower concentrations of detergent or in water.…
Optimal Foraging Strategies of Camponotus pennsylvanicus Hypothesis 1.) Ants prefer food sources of a higher quality rather than of a lower quality. 2.) Ants are sensitive to foraging gains and predation risks. Predictions 1.)…
Once the seeds were planted and covered, each group labeled their flat with their group number, and the time and location of their scheduled lab. Between the scheduled lab sessions, there are eight replicates of each experimental group (which happens to be five), therefore, the final end of the semester results of this experiment will be based off of forty experimental…
In this experiment, the problem that was being investigated was the effect of Miracle Gro on the germination of lentil seeds over a period of three days. This problem was investigated in the interest of Ms. Semaan and her past experiences with lentils. She and her family had previously grown lentil seeds seasonally and compared them to her relatives’ seeds in terms of growth and height. More often than not, the relatives’ lentils grew better than those of Ms. Semaan and her family, and she had wanted to know the reason why these results had occurred.…
The plants growth was stunted compared to the plants which…
This includes the same amount of sunlight and water and nutrients. The plots will be in an area that is not blocked off by a tree so they can receive proper sunlight. The seeds will be manually watered twice a week. The C. dactylon will receive water 5 inches in depth as well as the C. vialis. A soil measuring kit will be used to run various tests on the two different plants.…
The two locations that were chosen was near Littlefield dormitory (Sample A) and near the Biomedical Engineering building (Sample B). The procedure used to obtain these samples required using a moistened swab and sterile water. The moistened swab was inserted into the soil, below the surface, and then it was inserted and mixed into the sterile water. These two samples were then brought back into lab so that it could be streaked on two NA plates and two ACT plates. These “streaked out” samples were allowed to grow at room temperature for two days.…
Plants were harvest and the length (mm) and weight (mg) of…
Photosynthesis is a plant’s mechanism of converting sunlight and CO2 into energy in the form of organic material (Hohmann-Marriott and Blankenship 2011). Plant respiration is the process of using energy and oxygen to produce CO2 (Gonzalez-Meler et al. 2004). Almost all plants reproduce and respire, therefore it is important to know what factors could affect the rate of photosynthesis and respiration to better understand how plants function. Some research has shown that elevated CO2 concentrations may determine plant productivity by affecting plant physiological processes, and ecosystem structure and functions such as photosynthesis ( Xu et al. 1987).…
The genus Brassica is one of 51 genera in the tribe Brassiceae belonging to thecrucifer family, and is the economically most important genus within this tribe,containing 37 different species. Many crop species areincluded in the Brassica genus, which provide edible roots, leaves, stems, buds,flowers and seedCrops. Crops belonging to this genus are occasionally called Cole crops—derived from the Latin caulis, denoting the stem or branch of a plant.[1] Members of Brassica commonly used for food include cabbage, cauliflower, broccoli, Brussels sprouts. The Cole crops are extremely important to vegetable production in India.…