Wait a second!
More handpicked essays just for you.
More handpicked essays just for you.
The effect of light intensity on the rate of photosynthesis in plants
The effect of light intensity on the rate of photosynthesis in plants
The effect of light intensity on the rate of photosynthesis in plants
Don’t take our word for it - see why 10 million students trust us with their essay needs.
Plant Location Lab
Background: This investigation involves with dependents of plants around the world growing constantly. Recently, plants have been growing at a slow ate without any sunlight. According to scientists, plants are now growing without light and effects the development stages. The longer the measurement of the seeds to bloom, the longer the estimating growth rates between 2 weeks to 2 months to evolve.
Scientists pointing out saying that plants will grow rapidly without sunlight. The plants are supposed to be grow with photosynthesis and respiration. Without the photosynthesis, then the location of the biome would depended the outcome of plant growth. For the research question, how does changing the concentration of plant growth
…show more content…
Some plants have different shapes and sizes of the plants’ growth while others do not.
Independent variable: Light
- Sunlight and light classrooms will only affect the plants at a certain time limt because the plants are place inside the building and near the windows.
Controlled variable: Methods, plant samples, temperature
- Methods on trying to figure out where to put each plant sample near from the back, the front or in the center of the inside. Each plant sample will be given a letter and the name of the plant named on the cup. The temperature will be running inside the building to collect data of the results and the amount of water given will determined the plants from growing.
- There will be two groups of 3 different type of plants that will be measure on how long the stomata is growing, the amount of water each day and the location.
Uncontrolled variable: The locations of the inside of the classroom and light.
- Light will only be inside and outside of the classroom.
Materials:
● Three medium transparent cups with the sizes of 1 to 3 inches
● Three large non-transparent cups with the sizes of 1 to 3
…show more content…
The hypothesis states the plants will grow faster under the sunlight and their growth rate would increase. The data shows that each plants growth and how the temperature effects them from growing. Photosynthesis, transpiration and respiration play a basic part of the plant growth. Yet, there are issues behind plant growth is lack of water, weak soil, and over watering plant. Over watering affects the plants from growing when the soil absorbs the water too fast, and the nutrients won’t have the time to absorb it rapidly. Lack of light could also affect the plant’s growth becomes slow and plants fails to bloom. The solution would be to reduce room temperature by amount 3 Celsius and pour water less frequently. These growing problems are the reason why both group included samples B and C (1st group) and samples A and B (2nd group) were not
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.
The Effect of Light Intensity on the Rate of Oxygen Production in a Plant While Photosynthesis is Taking Place
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.
... photosynthesize. Without the vital factors of; carbon dioxide, water, sunlight and chlorophyll, plants would not be able to photosynthesize and therefore would not be able to produce their own food and thus would die. Without plants there would be no life on earth as basically all animals are directly or indirectly reliant on plants for their food as they are not able to produce their own food like plants. It is therefore crucial that plants get all these factors that they need in order to photosynthesize because, they are so important for the well being of the whole world, not only for food but also giving us the oxygen we need to breathe and stay alive, as they let off oxygen as a bi-product. To further improve this experiment one could test how the amount of carbon dioxide influences the rate of photosynthesis and therefore the speed at which a plant can grow.
To develop techniques of measuring the size of plant fibers under microscope using stage micrometer and eyepiece graticule.
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.
C4 plants are will grow more in warm weather. Warm weather causes a plant to close their stomata to save water in warm temperatures. When this process occurs
It controls the direction of growth in stem tips in response to different stimuli including gravity and light. The way the plant grows depends on the distribution of auxin in the plant tissue. Auxin is made at the tip of the stem, and then flows downwards. Auxin is vital to the survival of plants because it allows the plant to photosynthesize as much as possible. Light destroys auxin, so when it strikes the stem it kills the auxin on the side nearest the light source, causing an imbalance of auxin. Because more auxin is present on the side facing away from the light source, that side grows faster causing it to tilt and bend towards the light. That process is phototropism. Gravity pulls auxin to the lower side of the stem, therefore the lower side of the stem grows faster. That means that the plant will grow upwards and against gravity. For example, if a plant were placed horizontally, the force of gravity causes the auxin to move to the underside of the stem. Because of the increased amount of auxin, the cells on the bottom side of the stem grow more than the cells on the top side of the stem, causing the stem to bend upwards. A study, done by Ken Haga and Tatsuya Sakai proved that phototropism and gravitropism occur because of
The table illustrates clear and concise results on the effects, the colours of light have on the height of mung beans. From Day 1, this data favours blue light as the best colour for the vertical growth of plants while green light proved to be the most detrimental to the plant growth. The full spectrum or the control variable, followed after the blue light, also indicating a healthy sign for plants. Closely behind the full spectrum was the plant placed under the red light with only 0.2 cm less than the height controlled variable. Along with green light, the colour yellow was also found to be disadvantageous to the growth of plants. The graph shows a linear trend which indicates the vertical growth of the beans according to the colours. The R2 values indicates the line of best fit and values either 1 or near one refers to the validity and accuracy of the data respective to the type of trend. From the graph, the relationship of between the colour...
Since the needs of different plants completely differ from one another, their parts will surely become different, and this contributes to the wonderful diversity around us. Hopefully, through this exercise, the students would be able to grasp a deeper understanding of the importance of plants around us. Just like the example above, soil erosion can kill thousands of people and can affect the lives of millions more if young individuals such as the students would not become aware of preserving...
Competition for scarce resources can decrease or retard growth and development. Up to a point, plants respond to competition by modifying form and size.
Microclimates nurture wide varieties of plants and animals. Preivously it was established that microclimate is important to plant for different activities like germination, growth and reproduction.Necessary to plant species for germination, growth and ecological processes, such as photosynthesis, evapotranspiration, nutrient cycling (Rosenberg et al., 1983). Biotic and abiotic process rates are effected by soil temperature and moisture, such as nutrient availability, soil carbon sequestratio, and microbial activity (Fisher and Binkley, 2000). Active microbes and invertebrates along with high temperature and moisture, can also lead to a faster litter decomposition and thus enhance vegetation (Godefroid et al., 2006).
The reason light intensity is being used compared to whether or not a plant needs light. It is because The experiment wants to show that the rates of photosynthesis will vary according to how much light from a light bulb will be trapped in. the chloroplasts, in the leaf. The more energy trapped the more efficient a chemical reaction can take place and the speed of photosynthesis will increase. There are many things which can affect the photosynthesis of a plant such as light intensity, temperature and carbon dioxide levels.
Plants use sunlight in the same way food is used by humans. People and animals get their food by eating it. Plants make their own food by using air, water, nutrients and energy from the sun (Rissman, 2009, p.5). While plants take care of their survival, it is worth noting that if the habitat changes in anyway this may present a challenge to the life of a plant.
Plant growth is the enlargement or the increase in height of a plant. From the seeds that was planted under the soil and in to a plant that emerge from the soil. The growth of plants is a natural process that occurs every time a plant is being planted. Plants have cells that help them to grow or increase in size, mass or the other parts of the plants. Not all plants grow as tall as a tree it is according to their origin or type of plant that the seeds came from, for example, mongo seeds do not grow as tall as trees like bonsai, the shrubs and flowers. Some plants grow as tall as trees as or more than the size of it, like the bamboo they grew as three feet tall.