Essays Tagged: "Light intensity"

How does light intensity affect the rate of photosynthesis?

How does light intensity affect the rate of photosynthesis?Poorly PondweedQuestions1) How does light intensit ... sity affect the rate of photosynthesis?2) How does temperature affect the rate of photosynthesis?sunlightcarbon dioxide + water glucose + oxygenchlorophyllsunlight6CO2 + 6H2O ààà& ... rave;ààà C6H12O6 + 602chlorophyllPredictionI predict that the more intense the light, the higher the rate of photosynthesis. To photosynthesise, plants need light. It provides the ...

(11 pages) 115 1 4.0 Sep/2003

Subjects: Science Essays > Biology > Plant Biology

Investigation on how light intensity affects the rate of Photosynthesis.

Introduction: Photosynthesis is the process by which green plants use the light energy to convert carbon dioxide and water into simple sugar called glucose, which provides a ... orophyll, consisting largely of carbon and hydrogen. It gives green color and absorbs the necessary light for photosynthesis. Chloroplasts are found in palisade cells, they have a large surface area, ... ts are found in palisade cells, they have a large surface area, which means there is more change of light hitting a chloroplast. Light is a very important factor when it comes to the process of photos ...

(3 pages) 66 1 3.4 Nov/2003

Subjects: Science Essays > Biology > Plant Biology

Biology Coursework Analysis and Evaluation (transpiration)

Analysis -After doing this experiment, I can see from my graph that a decrease in light intensity reduces the rate of transpiration. This is because when there is a high level of lig ... a high level of light intensity it starts to evaporate any water and because there was such intense light on the plant at the beginning of the experiment water quickly evaporated. This is also due to ... he leaves from wilting. Transpiration takes place more during the day than it does at night because light causes the stomata to open and when they are open water is lost faster. Water evaporates from ...

(2 pages) 43 0 3.6 Feb/2004

Subjects: Science Essays > Biology

An Investigation To Discover Whether Or Not There Is A Relationship Between Light Intensity And The Surface Area Of A Leaf.

The aim of this investigation is to see whether I can find a definite relationship between the light intensity onto the leaf's surface and the surface area of the leaf.HypothesisI think the light ... esisI think the light intensity could affect the surface area in the following way:·A higher light intensity could make the surface area of the leaf larger.The reason I think a higher light int ...

(2 pages) 18 0 3.0 Mar/2004

Subjects: Science Essays > Biology > Plant Biology

The effect of light intensity on the rate of photosynthesis

How light intensity effects theRate of photo synthesis.AimThe aim of my experiment is to find out how li ... to find out how light intensity affects the rate of photosynthesis.PredictionI predict that as the light intensity increases that the rate of photosynthesis will increase in proportion, so for exampl ... ses that the rate of photosynthesis will increase in proportion, so for example if you increase the light intensity from 10cm away to 20 cm away form a stationary plant. There for the rate of photosyn ...

(7 pages) 179 3 4.3 Mar/2004

Subjects: Science Essays > Biology > Plant Biology

The effects of Light Quality on the Rate of Photosynthesis Measure through Floating Spinach Disks

AbstractThis study was undertaken to determine the relationship of different wavelengths of light and the rate of photosynthesis in spinach leafs. The rate of photosynthesis was measured every ... te of photosynthesis in spinach leafs. The rate of photosynthesis was measured every five min under light colors of white, green, red, blue and yellow under a light intensity of 2000 lux. The rate of ...

(10 pages) 107 0 4.0 Apr/2004

Subjects: Science Essays > Biology > Plant Biology

To investigate how concentration effects osmosis on potato chips.

tors involved and these are;1) Temperature2) Water potential of potato initially3) Size of potato4) Light intensity5) Mass of potato dependent variable6) Volume of solution potato chip is in7) Type of ...

(11 pages) 31 0 2.3 Dec/2004

Subjects: Science Essays

How light intensity effects the rate of photosynthesis.

In my investigation I am going to establish the effect of changing light intensity on the rate of photosynthesis.What is Photosynthesis?Photosynthesis is how plants ge ... is. In photosynthesis, a plant takescarbon dioxide from the air and water from the soil anduses the light from sunlight to turn them into food.Photosynthesis occurs only in the presence of light, andt ... oxygen so they give it out as a waste productbut saves a little bit to use for respiration. The sunlightis absorbed by a green pigment called chlorophyll.Most of the glucose is turned into a substanc ...

(8 pages) 75 0 4.0 Dec/2004

Subjects: Science Essays > Biology > Plant Biology

Biology Investigation How Light Affects Photosynthesis

Biology InvestigationHow Light Affects PhotosynthesisIntroductionI will carry out an investigation to find out how photosynth ... ynthesisIntroductionI will carry out an investigation to find out how photosynthesis is affected by light intensity. I will use an aquatic plant (water plant) called Elodea. Elodea is a Canadian Pondw ... e an aquatic plant (water plant) called Elodea. Elodea is a Canadian Pondweed.AimTo investigate how light affects photosynthesis in Elodea.Prediction 1 I predict that the Elodea will produce mo ...

(10 pages) 61 0 4.0 May/2005

Subjects: Science Essays > Zoology

Fundamentals of medical imaging

our own minds and which are accessible only to subjective study.Real images consist of patterns of light intensity and possibly variations in colour. The patterns of light are created in one of three ... y variations in colour. The patterns of light are created in one of three ways;Viewing by reflected light from a surface; Reflected light- ultrasound, RNI, Theatre, thermal imaging paper. (pg7)Viewing ...

(4 pages) 41 0 0.0 Apr/2006

Subjects: Science Essays > Biochemistry

Photosynthesis

PhotosynthesisThis is the process whereby plants trap the sunlight's energy in their chlorophyll and transfer carbon dioxide and water into glucose and energy.Ca ... months.AbstractThis study was undertaken to determine the relationship of different wavelengths of light and the rate of photosynthesis in spinach leafs. The rate of photosynthesis was measured every ... te of photosynthesis in spinach leafs. The rate of photosynthesis was measured every five min under light colors of white, green, red, blue and yellow under a light intensity of 2000 lux. The rate of ...

(1 pages) 26 0 0.0 May/2006

Subjects: Science Essays > Biology

How light intensity affects the rate of photosynthesis. (Measured by the amount of bubbles produced in 2 minuets)

TE:PICTURES AND DIAGRAMS FROM THE ORIGONAL ESSAY WILL NOT APPEAR SO THERE MAY BE UNXPLAINED GAPSHow light intensity affects the rate of photosynthesis.(Measured by the amount of bubbles produced in 2 ... glucose, using energy from the sun. (OCR Biology Text book)The word equation for photosynthesis is:Light provides energy for the reaction of photosynthesis. Photosynthesis does not happen at night/in ...

(9 pages) 28 0 3.0 Aug/2006

Subjects: Science Essays > Biology > Plant Biology

Photosynthesis

Plan:Aim: To find the effect of light intensity on the rate of photosynthesis by using water weedEquipment List:* UV Lamp- Plants us ... lamp's direction.2. Setup the lamp at the first designated distance away from the tube, setting the light intensity.3. Try and close all curtains and put it in dull place avoiding light from elsewhere ... and record the number of bubbles released by the plant for 1 minute in the table drawn7. Change the light intensity, by changing the distance away from the water weed to the next designated distance a ...

(3 pages) 43 0 3.0 Nov/2006

Subjects: Science Essays > Biology

Brisbane Forest Park Field Study Write Up

or- Temperature probe attached to CBL2 for ambient temperature reading- Temperature probe for soil- Light intensity probe (sensor)- Hygrometer (shared with another group)- 1 X 10m string for transect- ... est. Write a brief description of the topography, plant distribution, the dominant types of plants, light intensity, shape of the trees.2. Choose a spot randomly in your area of study. Using the light ...

(11 pages) 21 0 3.6 Nov/2006

Subjects: Science Essays > Agriculture

How Fossil Fuels Affect The Environment

ir, produced as a result of burning coal and oil. While smoke remains in the air, it can reduce the light intensity at ground level; hence reduce the overall rate of photosynthesis. Deposits of smoke, ... re particularly, soot and ash, may coat plant leaves directly reducing photosynthesis by preventing light penetration or even by clogging stomatal openings.The pollutants involved in acid rain are sul ...

(5 pages) 92 0 5.0 Oct/2001

Subjects: Science Essays > Environmental Science

Investigation of the Change of pH Affecting Enzyme Activity

w.worthington-biochem.com/IntroBiochem/effectspH.html). If the pH of the substrate is changed even slightly the enzyme may become denaturation (IB biology notes). Denatuation is the changing of the st ... m, at room temperature.Time All tests were taken on the same day, in the same 90 minute lab session.Light intensity All tests were taken under the same light intensity.Concentration of solutions All t ...

(4 pages) 15 0 1.0 Feb/2010

Subjects: Science Essays > Chemistry

Slater Investigation on Responce to Light Stimuli

p, damp soil litter under the shelter of bushes or trees. So that they were not exposed to a lot of light and there is protection from predators such as blowflies and centipedes, sufficient food and d ... mostly made up of damp organic matter, damp soil, moist leaves, some were found on stony ground.The light intensity is significant to the niche and way of life of the Slater because they are classed a ...

(10 pages) 51 0 0.0 Apr/2010

Subjects: Science Essays > Biology

Photosynthesis Coursework

. In photosynthesis, a plant takes carbon dioxide from the air and water from the soil and uses the light from sunlight to turn them into food. Photosynthesis occurs only in the presence of light, and ... t as a waste product but saves a little to use for respiration (releasing energy from food). The sunlight is absorbed by green pigment called chlorophyll.Much of the glucose is turned into other subst ...

(5 pages) 70 0 1.0 Mar/2004

Subjects: Science Essays > Biology > Plant Biology

Photosynthesis in Plants

Aim: To investigate the effect of different light intensities on the rate of photosynthesis (conventional method)Introduction: Photosynthesis is ... food. There are a few conditions required for photosynthesis to take place. They are: Chlorophyll, Light, Carbon Dioxide and Water. Each of these factors has a different effect on the rate of photosy ... on the rate of photosynthesis. In plants, the chlorophyll present in the chloroplasts, converts the light energy from the sun and converts it into chemical energy. It also traps the sun's light energy ...

(4 pages) 58 0 3.5 Sep/2006

Subjects: Science Essays > Biology > Plant Biology