Investigating the Abiotic Factors that Affect the Size of Ivy Leaves in Shaded and Unshaded Habitats
Introduction
Ivy is any one of a large number of creeping or climbing vines. These
vines have different botanical names, and the word ivy, as commonly
used, does not belong to any one plant. It often applies to climbing
vines, especially to those that are ornamental. The particular one
being looked at in this experiment is the common, or English, ivy.
English ivy is the plant that makes such an attractive picture as it
climbs over walls and tree trunks in Europe and North America. Its
waxy leaves usually have five points, or angles. They are dark green
in summer and turn bright scarlet in the fall. The plant retains its
leaves all year. English ivy also bears tiny flowers. This ivy
clings to smooth surfaces with the fine roots on its stems. It does
not grow well in the bright sun of the central, southern, and western
United States. But in shady locations, it can be grown as far north
as Ontario, Canada. It makes an excellent covering for buildings.
Its leaves and berries are poisonous. English ivy belongs to the
ginseng family, Araliaceae. The scientific classification would be
Hedera helix.
Being an evergreen plant it has the advantage of being able to
photosynthesis during the winter months whereas deciduous trees are
dormant. The increased light that is available, by the absence of
deciduous leaves allow it to grow more rapidly up the trunk of the
host tree. The evergreen leaves of the plant also inhibit the leaves
of the deciduous tree thereby suppressing the growth of the host tree.
The increased openness of the tree crown further stimulates the growth
of the vine. As the ivy climbs up the host tree to reach the canopy,
the density of the vine as well as the weight of the water and ice on
the leaves increases the weight of trees. This often results in
branches breaking during heavy winds.
In my data table it shows that the gummy bear put in water grew 0.5cm more than the other ones put in the other liquids.
Snyder, R. (2009). Water In The Greenhouse. Growing Produce. Retrieved on March 20, 2014 from http://www.growingproduce.com/uncategorized/water-in-the-greenhouse/
After several miles of tromping through the thick, slimy mud, I reached the hill with the tree upon it. Panting, I raced towards the hill and begin to climb it. My foot slid on the slick ground, but I persevered. I reached the top of the hill and felt disappointed. Trees were supposed to be surrounded by other plants and teeming with wildlife. Not this tree. The mud I trudged through covered the hill, coating the tree’s roots. There were no other plants. In fact, as I looked around, I noticed tha...
The substance that absorbs sunlight is chlorophyll, which is mainly contained in chloroplasts. This energy is used to convert carbon dioxide (CO2) and water into sugars. This conversion creates the waste product oxygen, which is used by humans for breathing. Without being able to photosynthesise plants will stop growing and die. In a plant growing in the dark the chlorophyll will slowly be destroyed causing them to use their food reserves.
At point A the graph shows that no change in mass, of the potato, would have have occurred had we used a 0.2 (m) sucrose solution. This suggests that the concentration of water inside the potato would have been equal to the solution outside the potato. At point B (plain water), there is no indication that the cell is increasing in mass. This is because the cell is fully turgid and no more water can enter.
The author explains the metaphor of the tree page 18. He uses it afterward to introduce each paragraph for pedagogic purposes. Ibid, p18.
3. Chapter 1, page 5, #3: “Moving through the soaked, coarse grass I began to examine each one closely, and finally identified the tree I was looking for by means of certain small scars rising along its trunk, and by a limb extending over the river, and another thinner limb growing near it.
How Light Affects the Stomatal Opening in a Leaf Abstract = == == ==
There have always been many different trees are found in the forest. Tall ones, round of leaf and with broad branches spread open in welcome. Short ones are found here as well, with thin trunks and wiry limbs they sway in the breeze. A wide variety of foliage in the emerald grove dancing merrily to the whispers of the wind. In this quiet thicket, a different type of tree grows, too. They stand resolute, patient, and ever growing.
Each plant species has a unique pattern of resource allocation that is genetically determined but not fixed. Plants can adjust there allocation pattern when they experience different environments and the presence of other species. Phenotypic plasticity goes hand in hand with resource allocation as well. When a plant has to adjust itʻs resource allocation, sometimes it uses itʻs resources to help the plant grow different characteristic so that the plant can have a greater chance of living in the environment. For example, if a plant from an environment that does not experience wind on the regular basis enters a new environment that has a lot of wind the plant may change itʻs resource allocation and spend more of itʻs resources growing deeper
Investigating the Effect of Light Intensity on Photosynthesis in a Pondweed Aim: To investigate how the rate of photosynthesis changes at different light intensities, with a pondweed. Prediction: I predict that the oxygen bubbles will decrease when the lamp is further away from the measuring cylinder, because light intensity is a factor of photosynthesis. The plant may stop photosynthesising when the pondweed is at the furthest distance from the lamp (8cm). Without light, the plant will stop the photosynthesising process, because, light is a limited factor. However once a particular light intensity is reached the rate of photosynthesis stays constant, even if the light intensity is the greatest.
* Amount of sugar solution in each test tube. * The potatoes have to have the same mass.
stories high, with large pillars in the front. Ivy grows up one side of the
The Effect of Salt Solution Concentration On The Mass Of Potatoes Introduction = == == == ==
...e roots of the old tree, the star’s light was intercepted by green shoots and small, crinkled leaves— last season’s seeds. Tiny children of the mother tree, they were doomed to live out their lives under her suffocating blanket of branches. Now as they gazed upward, innumerable points of light gazed back. A light wind rustled the miniature stalks of the saplings, blowing the new debris around in short-lived eddies that danced softly through the night.