Exploring the Rate of Photosynthesis Photosynthesis is the process by which plants take carbon dioxide from the atmosphere, add water, and use the energy of sunlight to produce sugar. Photosynthesis occurs in the chloroplast, an organelle in plant cells that contains the molecule chlorophyll. Chlorophyll absorbs the energy of sunlight.
The word photosynthesis can be separated to make two smaller words: Most plants are able to make their own food whenever they need it. This is done using light and the process is called photosynthesis.
Photosynthesis is the process by which plants make their own food.
|Accessibility links||The Effect of Temperature on the Rate of Photosynthesis By Samuel Markings; Updated March 09, Photosynthesis is one of the most remarkable biochemical processes found on Earth and allows plants to use sunlight to make food from water and carbon dioxide. Simple experiments carried out by scientists shows that the rate of photosynthesis is critically dependent upon variables such as temperature, pH and intensity of light.|
|Types of photosynthesis||Temperature, light intensity, and the availability of water. How does any combination of environmental factors affect the rate of photosynthesis?|
|How does water affect photosynthesis||It shows how the amount of CO2 and light affect the rate of photosynthesis. Lines of best fit were drawn for each CO2 concentration to make up for any inaccuracy in any individual result.|
We will add more details to this definition after making a few things clear as you will see below. What is needed for Photosynthesis? To make food, plants need not just one but all of the following: Carbon dioxide from the air passes through small pores holes in the leaves. These pores are called stomata.
Water is absorbed by the roots and passes through vessels in the stem on its way to the leaves. Sunlight is absorbed by a green chemical in the leaves. What happens during Photosynthesis? The photosynthesis process takes place in the leaves of plants.
The leaves are made up of very small cells. Inside these cells are tiny structures called chloroplasts. Each chloroplast contains a green chemical called chlorophyll which gives leaves their green color.
It is this energy that is used to split water molecules into hydrogen and oxygen. Oxygen is released from the leaves into the atmosphere. Hydrogen and carbon dioxide are used to form glucose or food for plants. Some of the glucose is used to provide energy for the growth and development of plants while the rest is stored in leaves, roots or fruits for later use by plants.
Here is the process in greater detail: Photosynthesis occurs in two stages commonly known as Light dependent Reactions and the Calvin Cycle. Light dependent Reactions Light dependent reactions occur in the thylakoid membrane of the chloroplasts and take place only when light is available.
During these reactions light energy is converted to chemical energy. Chlorophyll and other pigments absorb energy from sunlight.
This energy is transferred to the photosystems responsible for photosynthesis. Water is used to provide electrons and hydrogen ions but also produces oxygen.
Do you remember what happens to the oxygen? ATP is an energy storage molecule. More details about the formation of sugars can be found under the Process of Photosynthesis in Plants. What have you learned so far? You already know that plants need carbon dioxide, water and sunlight to make their food.
You also know that the food they make is called glucose. In addition to glucose, plants also produce oxygen. This information can be written in a word equation as shown below.
Now that we know what plants need to make food, we can add that information as shown below. Photosynthesis is the process by which plants make their own food using carbon dioxide, water and sunlight. What does Photosynthesis produce?
Photosynthesis is important because it provides two main things: This is why we are able to eat carrots, potatoes, apples, water melons and all the others. These foods provide energy for humans and animals.
Oxygen that is produced during photosynthesis is released into the atmosphere. This oxygen is what we breathe and we cannot live without it. While it is important that photosynthesis provides food and oxygen, its impact on our daily lives is far more extensive.
Photosynthesis is so essential to life on earth that most living organisms, including humans, cannot survive without it.Our objective was to investigate the sensitivity of growth to acid pH, and to compare acid-sensitivity of growth, photosynthesis, and respiration of copper-tolerant (B-4, X-Cu) and copper-intolerant (X) strains of Scenedesmus acutus heartoftexashop.comans.
Low light intensity lowers the rate of photosynthesis. As the intensity is increased the rate also increases. However, after reaching an intensity of 10, lux (lux is the unit for measuring light intensity) there is no effect on the rate.
The concentration of chlorophyll affects the rate of reaction as they absorb the light energy without. The higher rate of each ingredient means the more nutrients will it produce.
How much the strength of the light, but if the distance is close enough to the plant, it will produce the more nutrients than if the distance is far away from the plant. DISCUSSION/CONCLUSION: Claim= The higher the pH in the solution, the faster the rate of photosynthesis in spinach leaves.
This refutes our hypothesis, because we predicted that pH of 7 would cause the fastest rate of photosynthesis, when our data shows that pH of 10 caused the fastest rate .
Sugar, Photosynthesis, and pH Tests Reveal Inhibitory Effect of Acid Rain on Hedera helix L. by: The Flying Hellfish. Dan Shapiro, Giuseppe Valentini, Patrick McKeown, and Kevin Ogden. Visible foliar damage occurs to ivy plants treated with simulated acid rain at pH and The most visible damge occured in pH The factors that effect the rate of photosynthesis are: the amount of sunlight, the amount of carbon dioxide, amount of water, intensity of sunlight, and the climate (temperature).