Alaskan Peas Lab Report

Four cups of equal size were filled with one cup of garden soil. Lima beans were planted at an equal depth (one inch as instructed on the bag). Every day, for 33 days, each plant received one half tablespoon of the specified liquid. Beans one and two got one half tablespoon of water each,

Introduction: Photosynthesis can be defined as a solar powered process that removes atmospheric carbon dioxide and transforms it into oxygen and carbohydrates (Harris-Haller 2014). Photosynthesis can be considered to be the most important biochemical process on Earth because it helps plants to grow its roots, leaves, and fruits, and plants serve as autotrophs which are crucial to the food chain on earth. Several factors determine the process of photosynthesis. Light is one these factors and is the main subject of this experiment. The intensity of light is a property of light that is important for photosynthesis to occur. Brighter light causes more light to touch the surface of the plant which increases the rate of photosynthesis (Speer 1997). This is why there is a tendency of higher rates of photosynthesis in climates with a lot of sunlight than areas that primarily do not get as much sunlight. Light wavelength is also a property of

The purpose of this experiment was to investigate the effects of light intensity on the rate of photosynthesis in a Moneywort plant. By observing the plant in distilled water mixed with sodium bicarbonate, different light bulbs were targeted onto the plant. The measurement of the amount of bubbles present on the plant during the trial of the experiment enabled us to identify the comparisons between the activity of the light and the process of photosynthesis.

Wisconsin Fast Plants are known to be great educational tools for classroom experiments. They germinate quickly and are easy to take care of. These plants germinate after 1 or two days and have a life span of about 30 to 40 days. (Marin and Terrana, 2004).

7. Explain how incubation plant tissues in a series of dilutions of sucrose can give an

At the start of this experiment we were required to obtain a set of four Wisconsin Fast Plants, which are genetically, known as Brassica rapa. These plants have been, “originally selected under continuous fluorescent light to grow and reproduce quickly for research purposes, these petite, fast-growing plants have been used for teaching biology concepts” (Wisconsin Fast Plants). These four pots that contain our plants will be under our watch for the next 16 weeks where we will show our results at the end of the semester.

The objective of this experiment is to develop an understanding of the molecular basis of diffusion and osmosis and its physiological importance. Students will analyze how solute size and concentration affect diffusion across semi-permeable membranes and how these processes affect water potential. Students will also calculate water potential of plant cells.

Respiration was measured in germinating seeds in the Pea Lab because in germinating peas there is a high rate of cell respiration as the pea is still growing and needs to consume oxygen to continue growing. Pea plant cells rely on the process of cellular respiration to supply them with the energy that they need to stay alive and grow during germination. When the pea plants are grown the cells will still remove energy from sugar via cellular respiration; however, the sugar for cellular respiration will come from the process of photosynthesis instead of the stored

Humans regularly destroy natural landscapes on daily basis. Humans will contribute to destroying an ecosystem without even knowing it, by littering or using aerosols. The only way that these organisms can keep up is through being better taken care of. It’s known that water, sunlight, and soil is needed for a plant to thrive. There have been many studies on types of soil and levels of sunlight to determine which is best. There are studies on the amounts of water a plant needs to survive, this is great for farmers to be economically efficient but what about the casual gardeners? The average gardener likely doesn’t have top class soil, water, or optimal sunlight levels. Our research will focus specifically on water that’s readily available to the Perkins household and see which would be best for the household when taking care of their plantlife. Through this research, we hope to find information that is of use for any of the casual gardener population. The hypothesis is that the tap or untreated water, will be best for the plants thus retaining the most color. This is what’s typically used. In addition, soft water will be used. This water is thought to do well in taking color in our experiment. Healthwise, not better than the untreated water, but not as bad as the reverse osmosis. Lastly, the reverse osmosis is going to do the worst. The flower may wilt and the color won’t take

51) A botanist wanted to see if a new strain of corn could germinate in soil that was too salty for regular corn. She conducted a study on the germination success of seeds from the new strain that were exposed to various levels of salty soil, from zero to normal (100mg/L) to high (200 mg/L) to very high (400 mg/L) to normally lethal (800 mg/L)

Those three experiments showed that the way onion cells are dealing with the movement of water in and out of the cell is by osmosis. That Osmosis is the diffusion of water across a membrane into a solution having a greater solute concentration. The cell

According to the sowing information, snow pea is best to sow in cool climates, from autumn to spring. As the gardening shops are still selling the snow pea seeds, perhaps the weather in Melbourne is suitable for growing snow pea even though December is summer time. The snow pea seed is round and about the size of a small green pea. In a large garden pot with top soil prepared, three snow pea seeds were placed separately in each hole. According to the packaging information the harvest will take between 12 to 16 weeks from sowing. The snow pea is a climbing plant, which can grow from 60cm to 200cm, so for support a stick is placed to aid growth. After 25 days and approximately three and a half week the snow pea vine latches onto the stick, as seen in Figure 7, and by day 37 it has grown to 30cm tall as seen in Figure 8. By and large, children can get involved in planting and upkeep of a vegetable patch. In particular, where children can mix and scoop the soil, place seeds in soil, and maintain the plants in watering. Not to mention that children can watch the plants from growth to harvest, and most of all, children can taste, smell and touch their harvest. In fact, Campbell et al. (2015, p. 162) stated that getting children involved in planting, such as, soil preparation to nurture the growth, supports children’s explorations that may not be a normal part of their environment.

Plant cells react differently to osmosis than animal cells. When an animal cell is placed in a hypertonic solution, water will leave the cell causing it to shrink, this is known as crenation. When a plant cell is placed in a hypertonic solution the cell membrane will pull away from the cell wall, making the plant flaccid, this is known as plasmolysis. When an animal cell is placed in a hypotonic solution, water will rush in to the cell, causing it to swell and sometimes burst. A plant cell placed in a hypotonic solution will also swell due to water rushing in, but will resist rupturing due to the rigid cell wall. Plant cells become more rigid in a hypotonic solution.

Adding calcium to your soil can be an option to prevent calcium deficiency. This will raise the pH of the soil, making it more alkaline. Snow peas like acid soil and can be harmed by additives that raise the pH too high. Calcium is not considered to be toxic to plants. Although rare, overdosing calcium in the soil can reduce a plant’s uptake of other nutrients such as phosphorus, potassium, magnesium, boron, copper, iron, or zinc, resulting in deficiencies of these nutrients. Creating harmful conditions for the snow peas development.

In the 1940’s, Barbara McClintock was studying colored kernels, which were also known as maize. She numbered the ten chromosomes of maize from one to ten, one being a largest and ten being the smallest. While inspecting the breakage of these chromosomes, she noticed that one specific site of chromosome nine would break very frequently. She attributed this to two the presence of two genetic factors. The first she named the dissociation factor (Ds) and it was located at the breakage site. The second she named the activator (Ac), which activates the breakage of the chromosome. An illustration of this chromosome and the DS locus can be seen in Figure 1 (Anthony J.F. Griffiths, 2015).