Hypocotyl Length Of Garlic Lab Report

Photoperiodism is the effect of the relative lengths of light and dark periods on plant growth. This occurs when photoreceptor proteins e.g phytochromes are produced by plants in response to light intensity or the absence of light. This in effect affects the height of plants. [5]

The green pigment involved in photosynthesis is chlorophyll. Chlorophyll is green in appearance because it absorbs red and blue light, making these colours unable to be seen. It is the reflection of the green light that reaches out eyes, giving chlorophyll a green colour. This green light that can be seen cannot be used by the plant for photosynthesis. Therefore, theoretically growth should be inhibited in the plants only exposed to green light.

Photosynthesis occurs each time the sun’s light reaches the lives of a plant. The chemical ingrediants for photosynthesis are carbon dioxide (CO2), a gas that passes from the air into a plant via tiny pores, and water (H20), which absorbed from the soil by the plant’s roots. Inside leaf cells, tiny structures called chloroplasts use light energy to rearrange the atoms of the ingrediants to produce sugars, most importantly glucose (C6H12O6) and other organic molecules. Chlorophyll gives the plant its green color (Simon, 02/2012, pp. 92-93). Chemical reactions transfers the sun’s light energy into the chemical bonds that hold energy-carrying molecules. The most common are

Duckweed is a small aquatic plant that is able to grow rapidly, making it the ideal specimen for our experiment. It is hypothesized that altering the amount of light received by duckweed will alter its photosynthetic rate. It is predicted that a lower light intensity will lower the rate of growth in duckweed.

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.

In this experiment, I tested the theory of how light would affect the growth of a bean plant. According to gardenguides.com, lack of light is detrimental to plant growth.”Plants that don't get enough light don't have the resources they require, and fail to bloom or fruit.” It is also stated that every plant will need a different strength of sunlight such as full sun, partial sun, or indirect sunlight (also known as full shade). Plants that receive inadequate amounts of sunlight will not thrive.The reasoning behind this is due to a process called Photosynthesis, stated in gardeningknowhow.com. Photosynthesis is a chemical process which converts energy in the form of light into a chemical energy which is a vital food source for plants to thrive.

However, the photosynthetic process can be affected by different environmental factors. In the following experiment, we tested the effects that the light intensity, light wavelength and pigment had on photosynthesis. The action spectrum of photosynthesis shows which wavelength of light is the most effective using only one line. The absorption spectrum plots how much light is absorbed at different wavelengths by one or more different pigment types. Organisms have different optimal functional ranges, so it is for our benefit to discover the conditions that this process works best. If the environmental conditions of light intensity, light wavelength and pigment type are changed, then the rate of photosynthesis will increase with average light intensity and under the wavelengths of white light which will correspond to the absorption spectrum of the pigments. The null hypothesis to this would be; if the environmental conditions light intensity, light wavelength and pigment type are changed, then the rate of photosynthesis will decrease with average light intensity and under the white light which will correspond to the absorption spectrum of the pigments.

In this lab, varying wavelengths were used to test how light affects photosynthesis and respiration as a whole. The absorbance of lights from 380 nm to 720 nm of chlorophyll pigment from the Elodea sample

and green. Blue as discussed earlier was represented as the color of the God and other religious concepts, so the major incorporation of the color blue in the reliquary chasse indicated the spiritual significance it carried. Envisioning blue on the chasse unified people to Jesus Christ. Many of the reliquary chasse of the 12th century narrated a story; this individual one narrates the crucifixion of Christ. There are several key figures engraved throughout the exterior of the chasse, however since the crucial scene of the execution are shown on the front face of the chasse, that indicates that this chasse was primarily to be seen from the front rather than the sides. If viewed from the front, the top has three figures designed on it. In the center is the God the Father and on his either sides are two unknown saints. All three figures are represented in mandorlas however in different colors. The God of Father is displayed in the blue mandorla while the saints are shown in green mandorla. Here we can interpret a sense of hierarchy because the God of Father is shown in blue, which represents a divine color, however the saints are represented in green that is a mix of blue and yellow. So, blue still exists and represents divinity, yet the mixture of blue and yellow to produce a different shade of blue signifies that the God of Father is above and more important than the saints.

During the time when polytheistic religions were widely practiced in Europe, colors represented ideas associated with the paranormal and the spiritual. In many cases, the color blue represented safety and protection. It was believed that if someone wore or carried something blue, the bearer would be protected from evil spirits. Over time, as patriarchal societies formed, the welfare of the male child took priority over the welfare of the female child. Since male children were more important, parents surrounded their sons with blue objects. This explains the common association of males and the color blue that exists even in modern society.

Without photosynthesis we would not be able to receive energy. We should be more appreciate of plants, without them we would not survive. This paper will explain the basic components require for photosynthesis, the role of chlorophyll, how energy is transferred, and photosystems I and II and the most precious product results of photosynthesis.

The doorbell rang. sky dragged her feet to the door, thinking it was her takeout when she opened the door all that was there was a small box and an envelope addressed to her. She grabbed the things and went off to her room. she began to open the letter, she noticed that there was no key for the box just a note and a piece of gum. Sky when on and tried to pry the box open but all she could see through the cracks were bright blue lights. Sky went off and grabbed the small note and began to read it, Dear, sky We are the no faces, we chose you out of millions of people, if someone is chosen from us it's a great one if you would like to see us please chew the gum

A plant is any of the boundless number of living beings within the biological kingdom Plantae, these species are considered of low motility since this species generally generate their own food by sunlight. They incorporate a large group of commonplace life forms including trees, forbs, bushes, grasses, vines, plants, and greeneries. In this task we are experimenting the relationship between light and plant growth by growing plants in three different lights which are red light, blue light and white light. As I stated above that plants generate their own food by sunlight. Sunlight can be broken up by a prism into respective colors of red, blue, orange, yellow, green, indigo, violet and white. All this lights have specific

Cryptochromes are flavoprotein blue light receptors found throughout the biological Kingdom with many important signaling roles. Recently, it has been shown that cryptochromes catalyse the synthesis of reactive oxygen species (ROS) in the course of flavin reoxidation after blue light exposure. Although ROS are themselves important cellular regulators, it has remained unclear whether biosynthesis of ROS contributes to cryptochrome signaling. Here we show by fluorescence imaging techniques that ROS accumulates in the plant nucleus within minutes after cryptochrome activation by blue light, resulting in the activation of ROS regulated genes. Mutant alleles of cryptochrome that retain the capacity to synthesize ROS are active in redox regulation even though they have lost the ability to regulate photomorphogenesis. We conclude that ROS formation by cryptochrome has a cellular signaling role that is distinct from the known mechanisms of light induced conformational change regulating growth and development. These results suggest novel optogenetic tools to induce ROS through targeted illumination of cryptochrome.