Sandy Kim Period 4 IB Biology SL Effect of color lights on photosynthesis rate Personal Engagement I am interested in photosynthesis because before I have learnt about photosynthesis, I was wondering why most of leaves are green. Do not they have other colors like violet and yellow? It is important for me to investigate different colors of lights are affected by amount of photosynthesis because now I learn that chlorophyll, a main photosynthetic pigment, plays a vital role in a color that people observe. I want to find out which colors are the most effectively absorbed by chlorophyll. In order to prove it, elodea is needed because elodea is a typical plant to generate air bubbles, depending on light intensity and different foil sheets to
So it needs to pair up with other pigments that captures the wavelengths of light that chlorophyll misses especially the blue spectra and another function of these other pigments is to protect the leave from UV damage, an example for this kind of pigment is Xanthophyll. The reason why plant leaves are green is because the leave absorbs all the wavelengths of light except the green ones and the reflection of green is what we
Aim: How does light intensity affect the rate of photosynthesis in Elodea (pondweed)? Introduction: In this experiment, we were testing the rate of photosynthesis in elodea. For a plant to photosynthesize, it needs carbon dioxide and water and sunlight, a factor of photosynthesis. In order for us to measure the rate of photosynthesis, we needed to measure the products that were made, glucose and oxygen. As oxygen was a visible product, we counted the oxygen bubbles made when we moved the source of light.
This energy is normally obtained from the sun. When sunlight strikes the plant leaves the chlorophyll pigments within the leaves traps it, chlorophyll is found in chloroplasts which gives the leaves a green colour. Some of the trapped energy is used to break up water molecules into hydrogen and oxygen. The oxygen molecules are then given off into the air and the hydrogen molecules are combined with carbon dioxide to form a sugar called glucose (Great Illustrated Dictionary, 1984). Glucose is the basic food source and it assists with the growth of the plant (Roberts et al, 1993).
They harness their energy form the sun to carry out photosynthesis (Miller and Levine) However, other things are needed to do photosynthesis as well. Carbon dioxide and water are the key components to process photosynthesis. Chloroplast makes photosynthesis happen. They are organelle, or a specialized structure that performs important task in the plant cell. Cell in the plants co-operate to help
This experiment is set up the study the effect of different sodium bicarbonate concentrations on the rate of photosynthesis in spinach (Spinacia oleracea). Photosynthesis is the process by which plants and other photoautotrophs synthesize organic compounds from carbon dioxide (Faculty of Science and Horticulture, 2018). Photosynthesis takes place in the chloroplast of a plant cell, where sunlight, water, and carbon dioxide are used in a reaction to produce oxygen and sugar (Reese 2017). In the photosynthesis reaction carbon dioxide is reduced to make sugar and water is oxidized to make oxygen. In this experiment oxygen production is being used to measure the rate of photosynthesis.
Photosynthesis is the process where plants, algae, and bacteria convert light energy into chemical energy. These organisms use the sun's light energy to create food for themselves. Specifically, plants are autotrophs. An autotroph is an organism that has the ability to create their own food and have a sustainable food source. Plants use the sun's light energy
By looking at this graph you can notice that while the human eye has the strongest response in the yellow/green section of the light spectrum (600nm), plants respond more to the blue and red. The duration, the direction and the spectral quality of the light impact the rate of photosynthesis of the plants. Plants are highly responsive to the conditions of the environment surrounding them, which is why plants raised in greenhouses, under grow-light bulbs, might look different from plants grown outside
Plants go through a process called photosynthesis. Photosynthesis is the process in which water, carbon dioxide, and light create oxygen and glucose for plants to grow. Water and light go through light dependent reactions. In the light dependent reactions, ADP and NADP+ are converted into ATP and NADPH, which are energy carriers. The product of light dependent reactions is oxygen, which they release some into the air and use some for cellular respiration.
Getting into the habit of monitoring your local weather will help you to track precipitation, this will help you to know whether you water today or can the garden wait for the next. Before watering you should always check the soil moisture level, if the soil has a dried depth of 3-4 inches then the garden needs to be watered. Watering at night is usually the best for the pants because most plants grow at night also water attracts the sun and by watering during the day could lead to overheating and burning the plants unnecessarily as most of the water will evaporate and not benefit the plant. You want to avoid watering when it’s windy and try to water as close to the base of the plant at the soil to encourage deep root growth and helps to prevent fungal disease and mildew on such plants as squash and tomatoes. Installing rain barrels is a terrific way to collect and store water run-off from nearby buildings and rainfall, reducing the need to use water from the local water source.