Essays Tagged: "Transpiration"

stomata distribution in a dicot leaf

plant, and allow water and excess oxygen to escape. About 90% of water is lost from the leaf during transpiration.The number of stomata on leaf surface varies among different species. The lower epider ... ssion:There are more stomata in the lower epidermis as this reduces the amount of water lose during transpiration.Stomata are surrounded by two large sausage shaped cells called guard cells. They cont ...

(4 pages) 34 0 4.2 Apr/2002

Subjects: Science Essays > Biology > Plant Biology

Used Car Business Making a Comeback

ces for new cars have caused the typical American consumer to examine alternate solutions for their transpiration needs. As the average car on the road is 8 years old, compared to 5.8 years in 1970, t ... ces for new cars have caused the typical American consumer to examine alternate solutions for their transpiration needs. As the average car on the road is 8 years old, compared to 5.8 years in 1970, t ...

(9 pages) 79 0 4.0 Feb/1997

Subjects: Businesss Research Papers

Investigation: what conditions affect water loss from leaves?

put a leaf in an oven, more water will be lost than a leaf we put in a fridge.Scientific Background.Transpiration is the loss of water from the plant. Stomata close when there is little water coming u ... . This means that no Carbon Dioxide is getting in which therefore stops photosynthesis. The rate of transpiration is affected by the amount of light, the amount of air movement, the temperature and th ...

(3 pages) 40 0 4.2 Nov/2002

Subjects: Science Essays > Biology

1979 A.P.

L. PETERSON/AP BIOLOGYIn relation to plants, describe in detail one way of:a) measuring the rate of transpirationb) measuring the rate of photosynthesisc) separating pigmentsEssay :Transpiration is th ... ts, shoot and leaves, which occurs mainly through the stomata. Factors which can affect the rate of transpiration are those such as temperature, humidity, wind, and light, and the water in the soil. A ...

(3 pages) 45 0 3.0 Aug/2003

Subjects: Science Essays > Biology

Biology Coursework Analysis and Evaluation (transpiration)

ing 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 light intensity it starts to evaporate ... e fact that leaf water is also needed to aid in photosynthesis and to stop the leaves from wilting. Transpiration takes place more during the day than it does at night because light causes the stomata ...

(2 pages) 43 0 3.6 Feb/2004

Subjects: Science Essays > Biology

Transpiration

the results to have a bias.The windy environment created by the use of the fan produced the highest transpiration rates, of an average of 0.8 ml water lose. If the cutting was to carry on in this situ ... concentration in the leaves. Which would of then caused rapid loss of water through the process of transpiration with the help of increase rates of osmosis as well. This would have also happened with ...

(3 pages) 57 2 5.0 Mar/2004

Subjects: Science Essays > Biology

To investigate whether there is a difference in the frequency of stomata between green and white areas of leaves

frequency. This is mainly due to their immense need to conserve water and reduce water loss through transpiration, which involves water evaporating out of the stomata. Mesophytes, however, live in wet ... , however, live in wetter conditions, and are not at risk when they transpire. Losing water through transpiration allows the movement of water up the xylem through cohesion. They have more stomata for ...

(12 pages) 41 0 5.0 Apr/2004

Subjects: Science Essays > Biology > Plant Biology

The Water Cycle

th is always changing.How do these changes happen?It is made up of a few main parts:evaporation(and transpiration),condensation andprecipitation. Evaporation is when the sunheats up water in rivers or ...

(1 pages) 81 0 3.6 Apr/2004

Subjects: Science Essays > Earth Sciences

The Structure of Plants as Relates to Transpiration

All plants need water to survive. However, plants lose huge amounts of water through transpiration, which is the evaporation of water from the aerial surfaces of a plant. In order to un ... surrounded by specialized epidermal cells cells called guard cells. Stomata are the major sites of transpiration.Stomata function in the exchange of gases with the atmosphere. Most plants are C3 plan ... allows C4 plants to pump CO2 even on hot, dry days when the stomata are partially closed to reduce transpiration.Transpiration is an example of bulk flow. Bulk flow is the movement of a fluid driven ...

(4 pages) 36 1 4.0 Dec/2004

Subjects: Science Essays > Biology > Plant Biology

Transpiration AP Lab

TranspirationAP LabOverviewIn this lab you will:1. apply what you leaned about water potenti ... ial from Lab 1 (Diffusion and Osmosis) to the movement of water within the plant,2. measure transpiration under different lab conditions, and3. study the organization of the plant stem ... mical properties of water and forces provided by differences in water potential; the role of transpiration in the transport of water within a plant; and the structures used by plants to ...

(8 pages) 36 0 1.0 May/2005

Subjects: Science Essays > Biology

'The First World War was the most important cause of the Russian Revolution'.- How true is this claim?

ter of time before the grievances of Russian society triggered a collective awakening: this was the transpiration of a radical situation in 1917. The tsar's failure to solve the problems, and the comm ...

(6 pages) 33 0 3.0 Oct/2006

Subjects: History Term Papers > European History

Le Revêtement Cutané

ilde;©rature corporelle à la normale. A l'inverse, la peau peut produire un minimum de transpiration pour conserver la chaleur. En parallèle à la production de sueur, ...

(4 pages) 937 0 0.0 Aug/2001

Subjects: Science Essays > Chemistry

Transpiration in Plants

Transpiration is the process that allows plants to release H20 in the form of water vapor into the a ... he stomata, the microscopic pores on the surface of a leaf, are open for the passage of CO2 and O2. Transpiration plays a huge role for plants, as 90% of the water that enters the plant is through tra ... temperature, which is especially important when environments are constantly transforming. In fact, transpiration can lower the temperature of the leaf by as much as 10-15 degrees Celsius from the sur ...

(5 pages) 24 0 5.0 Sep/2007

Subjects: Science Essays > Biology > Plant Biology

Water conservation in plants

e for photosynthesis. Some plants have developed a variety of adaptations that allow them to reduce transpiration from their leaves without having to close their stomates.What are the Other members of ... s to a healthy leaf), the length of the stems, the amount of leaves on each stem, the time left for transpiration, the same environment (temperature, humidity and wind), and the amount of petroleum je ...

(24 pages) 17 0 3.0 Jan/2008

Subjects: Science Essays > Biology > Plant Biology

Biomes - Rainforests

d the removal of important minerals. Human activities in the rainforest such as logging, mining and transpiration of plants, increase carbon dioxide levels and the removal of important minerals get de ...

(1 pages) 666 1 0.0 Apr/2008

Subjects: Science Essays > Environmental Science

Plant Photosynthesis Lab

nings called stomata. Under normal circumstances, water evaporates from the stomata (this is called transpiration), and carbon dioxide gas from the outside environment enters the plant through these o ...

(7 pages) 45 0 0.0 Feb/2009

Subjects: Science Essays > Biology > Plant Biology

Marketing Phase I Exxon Mobil

ndly, non-hazardous, and absolutely free of fragrance. Biodiesel is produced through a procedure of transpiration where the separation of glycerin from fat or vegetable oil takes place. This reaction ...

(7 pages) 48 0 4.0 Feb/2009

Subjects: Businesss Research Papers > Marketing