This website uses cookies to ensure you have the best experience. Learn more

Photosynthesis In Relation To Light, Temperature And Water

1662 words - 7 pages

Photosynthesis in Relation to Light, Temperature and Water

Light has three principal characteristics that affect plant growth:
quantity, quality, and duration.

Light quantity refers to the intensity or concentration of sunlight
and varies with the season of the year. The maximum is present in the
summer and the minimum in winter. The more sunlight a plant receives
(up to a point), the better capacity it has to produce plant food
through photosynthesis. As the sunlight quantity decreases the
photosynthetic process decreases. Light quantity can be decreased in a
garden or greenhouse by using shade-cloth or shading paint above the
plants. It can be increased by surrounding plants with white or
reflective material or supplemental lights.

Light quality refers to the colour or wavelength reaching the plant
surface. Sunlight can be broken up by a prism into respective colours
of red, orange, yellow, green, blue, indigo, and violet. On a rainy
day, raindrops act as tiny prisms and break the sunlight into these
colours producing a rainbow. Red and blue light have the greatest
effect on plant growth. Green light is least effective to plants as
most plants reflect green light and absorb very little. It is this
reflected light that makes them appear green. Blue light is primarily
responsible for vegetative growth or leaf growth. Red light when
combined with blue light encourages flowering in plants. Fluorescent
or cool-white light is high in the blue range of light quality and is
used to encourage leafy growth. These lights are excellent for
starting seedlings. Incandescent light is high in the red or orange
range but generally produces too much heat to be a valuable light
source. Fluorescent "grow" lights have a mixture of red and blue
colours that attempts to imitate sunlight as closely as possible. They
are costly and generally not of any greater value than regular
fluorescent lights.

Light duration or photoperiod refers to the amount of time that a
plant is exposed to sunlight. When the concept of photoperiod was
first recognized it was thought that the length of periods of light
triggered flowering. The various categories of response were named
according to the light length (i.e., short-day and long-day). It was
then discovered that it is not the length of the light period but the
length of uninterrupted dark periods that is critical to floral
development. The ability of many plants to flower is controlled by

Plants can be classified into three categories, depending upon their
flowering response to the duration of darkness. These are short-day,
long-day, or day-neutral plants. Short-day, (long nights) plants form
their flowers only when the day length is less than about 12 hours in
duration. Short-day plants include many spring and fall flowering

Find Another Essay On Photosynthesis in Relation to Light, Temperature and Water

Death and Dying in Relation to Buddhism

2759 words - 12 pages Although people in general may have different views and/or ideas on death and dying, is it possible to come to some kind of consensus on its definition? In this essay paper titled, “What Is the Meaning of a Good Death?” I will focus on its definition; discuss where this idea came from and its relation to a traditional Buddhist death. Based on class lecture readings from RLCT 2066 (Death, Dying & Spirituality) and research completed on the

Investigating Solubility How does the solubility of Potassium Chloride and Potassium Iodide in water, vary with temperature?

1299 words - 5 pages covmpletely dissolvedRepeat the process for each gram of the substances - use hot plates with water bath on top where appropriate to get higher temperature.Data collection and processingPotassium ChlorideWhen Potassium Chloride is completely dissolved in water, it becomes clear solution without any solid left in the solution.Trial 1 Amount of KCl Temperature that KCl is dissolved 5.909 g ±0.1mg 7 °C ±0.1°C Amount of

Water Crystallization: The Relation Between Water and Crispness

806 words - 4 pages A. Physical Quality in nutrisari, there are 3 main parameters to maintain physical stability: 1. Water and Crispness The relation between water and crispness is that the more aw in the food products, then the less crispness in it. In this case, as we talk about nutrisari (dehydrated juice) the water and crispness parameter has no interaction for the product as it is not one of the parameter for nutrisari. 2. Water and Stickiness, Caking and

Artemia Franciscana and Preference Regarding the Effects of Light, Temperature, and pH

1260 words - 5 pages Introduction The Artemia franciscana can survive in extreme conditions of salinity, water depth, and temperature (Biology 108 laboratory manual, 2010), but do A. franciscana prefer these conditions or do they simply cope with their surroundings? This experiment explored the extent of the A. franciscanas preference towards three major stimuli: light, temperature, and acidity. A. franciscana are able to endure extreme temperature ranges from 6

Compare responses of named Australian ectothermic and endothermic organisms to changes in the ambient temperature and explain how these responses assist in temperature regulation

528 words - 2 pages . Many birds that spend spring and summer in Australia migrate before the temperature becomes cold.Hibernation: To survive cold conditions, many animals hibernate; that is they remain in a sheltered spot, their metabolism slows and the body temperature drops. Aestivation is the 'hibernation' of organisms in heat conditions. Bogong moths migrate to spend the summer months in caves in the Australian AlpsShelter: Animals seek shelter to avoid extreme

Essay on water scarcity in history, water scarcity in africa, and possible sollutions to water scarcity

1649 words - 7 pages Natural ecosystems require water for the survival of the plants and animals that live within them. These ecosystems help to regulate water quality and quantity of water. Wetlands hold water in periods of high rainfall, slowly releasing it during dryer periods, and purify it of heavy metals and other contaminants. Forests recharge our groundwater, which can be used elsewhere for drinking or irrigation. (Bergkamp 1) Natural ecosystems can help to

The Effects of Conduction in Heat Saving Devices (Build a heat-saving device that will allow a beaker of boiling water to maintain the highest possible temperature.)

1346 words - 5 pages , convection and radiation. The method of transferring heat between molecules is specific to each type of heat transfer. Conduction is the transfer of heat by direct contact of molecules.Depending on which type of heat transfer is happening, there are very specific ways to suppress the transfer of heat. The problem is, what may be good for one type of transfer is bad for another. In hopes of figuring out the best way to insulate boiling water, we were

Intrinsic Human Dignity and Equality in Relation to Liberal Democracy

1762 words - 7 pages Liberal democracy is prevalent in the West. This political arrangement guarantees the rights of a people in relation to their government. Many Westerners, unfortunately, cannot give a philosophical explanation and/or justification for it. Ultimately, an examination of liberal democracy will demonstrate that it rests on notions of human dignity, equality and happiness, which are not recent developments in philosophy, but have their origins in

Social Exclusion in Relation to Disability and Gender

1252 words - 5 pages al. 2004). Looking at social exclusion in relation to gender from the opposite side of the spectrum, citizen journalist Amanda Thomas, states that over the last few years there has been a rise in the number of older men in Britain who have become socially excluded. Pensioners and divorced men over the age of 80 who live alone and may also have had family breakdowns, or were unable to have any custody rights face isolation. This is due to their

Effects Of Postmodernism In Relation To Communication And Society

1292 words - 5 pages The movement occurred after 1945 is postmodernism which had shown it’s powerful effects in every aspect of life. It’s a movement that can’t be defined with a simple sentence because postmodernism has lots of components and directions. A postmodernist reflects history’s theological interpretations. When we talk about post-modernism we also take the concept modernism in our concept. Postmodernism is defined related to modernism as” the

Social Behavior and Personality in Relation to Social Media Usage

2226 words - 9 pages Results In this study, there were three main SNS that were tested (Facebook, Instagram, and Twitter), that were correlated with the big five personality traits (conscientiousness, openness, agreeableness, extraversion, and neuroticism). The openness hypothesis that those who were more open would follow more celebrities was only marginally significant for Twitter (r = .35). Openness and a large social network was found to not be significant. The

Similar Essays

Light And Photosynthesis Essay

1412 words - 6 pages chloroplasts, using chlorophyll. Photosynthesis takes place in green leaves. Glucose is made from the raw materials, carbon dioxide, water, light energy and oxygen is given off as a waste product. In these light-dependent reactions, energy is used to split electrons from suitable substances such as water, producing oxygen. In plants, sugars are produced by a later sequence of light-independent reactions called the Calvin cycle. In the Calvin cycle

Light And Photosynthesis Essay

1366 words - 5 pages leaf for starch using iodine solution. If the leaf goes dark blue to black there is starch present and if the leaf goes brown, no glucose has formed meaning no photosynthesis has taken place in the leaf. Review of literature Plants rely on light energy for photosynthesis to occur. Light is converted to chemical energy, which is then stored as a sugar bond in the plant. Besides the light energy the plant also requires water and carbon

An Investigation To Show How Water Temperature And Alcohol Concentration Affect Membrane Permeability

1290 words - 5 pages An Investigation to Show How Water Temperature and Alcohol Concentration Affect Membrane Permeability Aim The aim of the experiment is to show the cell’s membrane permeability is affected by being placed into different temperatures of water. Also the effect of placing beetroot in to different concentrations of alcohol. Beetroot cells contain a red sap, which leaks out of the cells if their membranes are damaged or altered. Cell

Light, The Primary Source Of Energy In Photosynthesis

746 words - 3 pages because there was no date or author noted. This article clearly examines in what form light is absorbed and the process thereof. Article 2: Photosynthesis converts light/radiant energy to chemical potential energy. The raw materials needed for this process to occur are light energy, water and carbon dioxide in order to make glucose. Light absorbed gives chlorophyll the green pigment as it absorbs red and blue light therefore making these two