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Reproduction for plants essay file 2 pages
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Fast Plants Lab
The fast plant seeds were planted in a terrarium and a variable was added to see what happened when the variable was added to compare the regular growth of plants without and with the variable. There was a land part of the terrarium where the fast plant seeds were planted and a bottom part where there was water which was to water the plants through a rope. The plants without the variable grew pretty quickly and almost always grew up. The one time their average dropped was because one of the plants’ necks got snapped which dropped the plant from 13.5cm to 10 cm causing the average to drop from 11.3cm to 10.5cm. The fast plants grew pretty steadily and the final average height was 19.5 cm. The variable that got put into the
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With sugar the plants grew as much as the plants without the variable consistently. With sugar some of the plants shrunk a little bit while others grew way bigger than they were before. One of our plants grew 7 cm over one period of time while another one of our plants shrunk 2.5cm at once. At 19 days the plants average height with sugar was 10.2 cm while the normal plants grew to 16 cm in 19 days. I think this is partially due to the slow start the normal plants had before we added in sugar as a variable. The plants stayed at the 1 cm range for 2-3 days before finally hitting 2.3 cm. When we finally did add sugar our plants shot up and the average height went from 2cm to 5cm and the plants started growing at a normal rate. Another reason why the plants could have grown so slowly was because of the sugar. The sugar made the plants grow fast for 4-6 days, but it also slowly started killing the plants. This explains why some of the plants started shrinking when we added sugar as a variable. While some of the plants shrunk when we added sugar, some of our plants grew 7 cm at a time, 6cm at a time. The leaves of our plants also wilted and died. Most of our plants are wilting as well which could be because sugar affects the roots of the plants and prevents them from growing well for
Two members of the group were instructed to visit the laboratory each day of the experiment to water and measure the plants (Handout 1). The measurements that were preformed were to be precise and accurate by the group by organizing a standardized way to measure the plants. The plants were measured from the level of the soil, which was flat throughout all the cups, to the tip of the apical meristems. The leaves were not considered. The watering of the plants took place nearly everyday, except for the times the lab was closed. Respective of cup label, the appropriate drop of solution was added to the plant, at the very tip of the apical meristems.
Although, this experiment is not concluded outdoors, it is provided with efficient light that promotes growth. It’s provided with soil, seed, fertilizer, water and NaCl solutions, to test how salinity effects plant growth.
Planarians are free-living, carnivorous flatworms found in the Phylum Platyhelminthes, Class Turbellaria. Although the Phylum Platyhelminthes is known for having the animals with the most parasitic species, the class Turbellaria which consist of the Planaria, are a non-parasitic species. Platyhelminthes which translates to "flat worm" are triploblastic animals. This means that they have three tissue layers, the endoderm, mesoderm, and ectoderm. Planaria also are monoecious organisms, meaning that they have both female and male sex organs in one organism. Another characteristic of the Planaria is that they do not have a true body cavity, meaning that they are acoelomate organisms.
Many variations and species of plants can be found all around the world and in different habitats. These variations and characteristics are due to their adaptations to the natural habitat surrounding them. In three of many climatic zones, the arid, tropical and temperate zone, plants that vary greatly from each other are found in these locations. In this experiment, we’ll be observing the connection between the adaptations of the plants to their environment at the Fullerton Arboretum. The arboretum is a space containing numerous plants from different environments. The plants are carefully looked after and organized into their specific habitat. Therefore, we’ll be able to take a look at the plants within multiple
We used wheatgrass were 40 wheatgrass seeds, two empty pots, soil, and water. We first added soil for both pots and 20 wheatgrass seeds in each pot. My partner and I decided that we label pot one experiment which is “sugar and water” and pot two control which is “water” only. The experiment was for almost four weeks we had to make sure both get the same room temperature and water, so we can see the results after this amount of time. Both pots had same room temperature so both can have the same amount of sunlight also, the same amount of water which is a glass of water from the sink once a week. In the experiment pot we added a glass of water with one teaspoon of sugar and the control pot glass of water. Every week we used to see both pots grow almost the same. At the end of the experiment, my partner and I measured the length for both plants and we recorded the average for each plant, so we can know the rate of growth
Every student in a lab section planted eight seeds, two in each cell in a quad, to make sure that we had at least one plant for each week for 4 weeks. After planting the seeds we put the plants on a water mat tray to make
Investigating the Effect of Light Intensity on the Size of a Plantain Leaf Title: To investigate the effect of light intensity on the size of a plantain leaf. Hypothesis: I predict that the size of the plantain leaves would increase as the light intensity decreases. Therefore, plantain leaves found in the shade will have larger surface areas than leaves found in an open area. Theory: Sunlight is an essential factor need to complete the process of photosynthesis.
One thing I could have done to improve my experiment was to have used a more secure lid on the growth tray to have ensured that all moisture would have stayed in the appropriate area. This makes me less confident about my data because there is a possibility that it could have disrupted the moisture levels in the soil and could have minorly diluted or concentrated
In this lab, we experimented how the incline of a ramp affects the acceleration of the toy car. In this experiment, we sent a toy car down 3 different ramps at 3 different heights. All 3 of the ramps had the same length of about 3.065 meters to ensure accurate data. We had to record The number of Trials, time, final time, distance, final distance, velocity, final velocity, and acceleration. In our lab the Independent variable was the height of the ramp and the Dependent variable is the Acceleration of the car when going down the ramp. With the small ramp, the average time moving down the ramp was 3.58 seconds. Then the average acceleration for the small ramp was .26 m/ss. That was the slowest time and acceleration out of all 3 slopes. Up second
Results: Initially, our ecobottle did very well. Within the first week, we observed great growth in the terrestrial chamber with seven grass sprouts. The aquatic chamber was also doing very well with clear water and healthy plant. The compost chamber did look dry, but we were not initially concerned with that. The second week, though, began to decrease progression in the terrestrial chamber. While some of the grass was still growing, the number of sprouts decreased and it took on a yellow color and the soil appeared also very dry. By the third week, the terrestrial chamber no longer supported any visible plants. The plant in the aquatic chamber, though, began to grow noticeably fast. The compost and terrestrial chamber soil continued to look dry each week until week five and six
the effect light has on the growth of pea plants. It will take place in an environment with controlled light, with equal amounts of plants being grown in the light and in the dark. All elements of the experiment other than light will be kept the same, such as amount of seeds in each pot, amount of soil in each pot and amount of water given to each plant each day. This will ensure a fair experiment. Prediction: I predict that in general, the plants grown in the light will grow better than those grown in the dark.
It was stated in the hypothesis that, “If cucumber slices are placed in water, ten percent sugar solution, and twenty percent water solution, then the cucumber in water will be isotonic (have the same measurement), the cucumber in the ten percent sugar water will become hypertonic (have smaller measurement), and the cucumber in the twenty percent sugar solution will be very hypertonic (even smaller). This is because of the process of osmosis and how things travel on the concentration gradient.” To test the hypothesis, three cucumbers were placed in three different solutions after being tested for their volume and mass. One solution held only water, another had 10% sugar, and the last had 20% sugar. After letting the cucumbers soak in each solution, their volume and mass was tested again. As shown in the table, the solution with only water had made the cucumber hypotonic. The volume was increased .16 and the mass increased .36g. In the 10% and 20% sugar solutions, the cucumber became hypertonic. The volume and mass of each cucumber had decreased. In the 10% solution, the volume went down by .16 and the mass went down .47g. In the 20% sugar solution, the volume decreased by .10 and the mass by .9g. The data collected from the lab proved our hypothesis was correct. One way to improve this lab would be to make sure the cucumbers were all the exact same size. This would make the data more accurate and easier to
A gall is an abnormal growth that occurs on plant tissues. A plant growth is similar to a tumor or a wart that would occur on an animal; plant galls, however, are typically caused by various parasites and insects. In order for a gall to form, a female insect needs to implant an egg into a plant. It is important that the insect does so when the plant is maturing, this ensures the plants meristem is extremely active and prepared to grow a gall suitable for the insect’s young. The larvae and possibly the adult insect as well release chemicals into the plants that causes the growth of the plant. Multiple studies have been done in attempt to find the exact cause for the growth of plant galls, but studies have not reached a similar
The two columns in the graph represent the mean values and the error lines represent the standard deviations of the tested grasshopper and human subject. The jumping distance of the grasshoppers was more than the jumping distance of humans and the TTEST value was less than 0.05.
Next, I tirelessly set up a drip-irrigation system that evenly waters the entire bed out of the tubing, piping, and fittings I picked up with my dad from Home Depot.