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Photosynthesis Essay Examples

Essays on Photosynthesis

The elodea specimen
Words • 1408
Pages • 6
Ribulose Bisphosphate It is this light independent stage which is affected by the temperature because it involves an enzyme, Ribulose Bisphosphate Carboxylase (rubisco), which catalyses the reaction between carbon dioxide and a five-carbon sugar known as Ribulose Bisphosphate (RuBp). Enzymes are catalyst made of protein. They convert substrate molecules into products by possessing an active site where the reactions occur. The optimum temperature of rubisco is 45o C. Exceeding this temperature causes the bonds that hold the polypeptides in specific…...
Water availability
Words • 983
Pages • 4
If my experiment were to be performed over a longer period of time, for instance 24 hours, I would add a fixed amount of Sodium hydrogen carbonate to the water, thus ensuring a large enough supply of carbon dioxide. Water availability - water is also required in the photosynthesis reaction, and when it is lacking, the plants' stomata close to prevent further water loss. This closing of the stomata cells also leads to little carbon dioxide being able to diffuse…...
Variables affecting the rate of Photosynthesis
Words • 1037
Pages • 5
The variables that could change the rate of photosynthesis are: Temperature, light intensity, Co2 concentration and amount and type of weed. The variable I will change is Co2 concentration. The variable that we have changed, Co2 concentration will change the variable we measure in that the higher the concentration of Co2 is the higher the rate of photosynthesis. But at a certain point the rate of photosynthesis will level out and no longer increase. Explanation: It slows due to the…...
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Stomatal Density
Words • 781
Pages • 4
Aim: To investigate the stomatal density of different leaves. Apparatus: * Light microscope * Distilled water * Water pipette * Microscope slide * Cover slip * Scalpel * Forceps * Colourless varnish * Ruler * 4 different types of leaves: 1. 2. 3. 4. Hypothesis: The stomatal density of plants is dependant on their habitat. The key factor which the stomatal density will depend upon will be the water supply and the extent to which the environmental factors of each…...
The stomatal density of a dicotyledonous plant growing in both Sunny and Shady conditions
Words • 3006
Pages • 13
This project investigated the stomatal density of a dicotyledonous plant growing in both Sunny and Shady conditions. The stomatal density of a batch of leaves taken from the main branches of the plant was estimated using a light microscope and an eyepiece graticule. Transparent nail varnish was used to obtain replicas of the different adaxial (lower) leaf surfaces by carefully applying it to the same area of the different sample and carefully removing it with the aid of a pair…...
Shirley Tomato Plants Investigation Analysis
Words • 1141
Pages • 5
When looking at the graphs to show how the Shirley tomato plants grew, it is clear to see how each plant differed according to the feed used. Plants 1 and 2 were fed with Tomorite, plants 2 and 3 with Bio and plants 5 and 6 were controlled (only the nutrients found in the soil). From the ratios, we can see that Bio has three times the amount of nitrogen as Tomorite. In addition, Tomorite has double the amounts of…...
BiologyCellular RespirationChemistryEnzymePhotosynthesisPlants
Words • 876
Pages • 4
A plant needs to use photosynthesis to survive just like we need to use reparation to survive. Us mammals inhaling oxygen and exhaling mainly carbon dioxide but for plants it's the opposite way around, they inhale carbon dioxide in there leafs and exhales oxygen. The idea of producing oxygen from the use of sunlight and carbon dioxide may sound strange but it is true. To produce oxygen a plant goes through an ever-lasting cycle, which is shown below: Carbon Dioxide…...
Photosynthesis Investigation
Words • 1717
Pages • 7
Our aim in this investigation is to test the prediction that the closer the lamp is to a piece of pondweed in a tube of water the less amount of oxygen will be produced. Scientific Knowledge: The equation for photosynthesis: Photosynthesis is a chemical reaction occurring in the leaves of green plants. Using the energy from sunlight, it changes carbon dioxide and water into glucose and oxygen. Oxygen is a 'waste' product of photosynthesis. Glucose can be converted to sucrose…...
Ivy Plants.
Words • 2000
Pages • 8
I predict that the ivy plant that grows on the south side of the wall will be smaller than the north facing ivy. This is because they have less limiting factors affecting them such as availability of light. The south side ivy have no problem with availability of light as the earth is tilted on its axis facing the sun, so this side has more sunlight. The purpose of the leaves to be able to photosynthesise, so I think that…...
Investigation to find out how light intensity effects the rate of photosynthesis
Words • 3198
Pages • 13
Flowering plants, like all living organisms, need a supply of food. They need it as a source of energy in respiration and they need it as raw material for growth and repair. Animals and most micro- organisms get their food in an organic form: they eat products from other organisms (such as fruit and eggs) or, nowadays, the organic substances made in laboratories and factories. Animals and the microorganisms that do this are called consumers. Due to the flowering plants…...
ExperimentLightLight EnergyPhotosynthesis
Investigating the effect of temperature on the rate of photosynthesis
Words • 8156
Pages • 33
Before starting my investigation on how temperature affects the rate of photosynthesis I carried out some research into photosynthesis. From this initial research I made a prediction based on the evidence that I found about the enzyme rubisco that is used in the dark stages of photosynthesis, and also on the limiting factors of light intensity, carbon dioxide concentration and temperature. I then went on to carrying out a preliminary experiment from which I learnt the factors that made the…...
What are the differences between Hetrophic & Autotrophic nutrition?
Words • 527
Pages • 3
One of the seven processes carried out by all living organisms, nutrition occurs in both plants and animals. However, the methods they both use are very different. Autotrophic nutrition is in its simplest terms is being able to feed oneself and synthesise ones own food from simpler molecules. Hetrophic nutrition however, is the opposite, unable to synthesise its own food. Immediately, one notices which of the categories each the plants and animals fall into. It is important to stress that…...
Cellular Respiration Assignment
Words • 1383
Pages • 6
- Cellular Respiration Assignment - 1. What two molecules are formed when a phosphate is removed from ATP? There are three phosphate groups in ATP molecule (Adenosine Triphosphate), when removing one phosphate molecule, ADP molecule is formed (Adenosine Diphosphate). 2. What is the function of ATP? Describe the molecule. The function of ATP is storing energy within a cell. ATP is adenosine triphosphate, C10H16N5O13P3, a high energy complex, giving the necessary power to push metabolistic reactions in the body. Its…...
BiologyCellular RespirationChemistryHuman PhysiologyPhotosynthesis
Carnivorous Plants
Words • 1449
Pages • 6
A study of insectivorous plants who are the predators rather than the passive prey.Carnivorous Plants In a world where plants are at the bottom of the food-chain, some individual plant species have evolved ways to reverse the order we expect to find in nature. These insectivorous plants, as they are sometimes called, are the predators , rather than the passive prey. Adaptions such as odiferous lures and trapping mechanisms have made it possible for these photosynthesizers to capture, chemically break-down…...
The Rate of Photosynthesis on Plants
Words • 224
Pages • 1
When organisms like cyanobacteria, algae, and primarily green plants use the energy from light and turn this energy into carbon dioxide, or water into oxygen and sugar, this process is called photosynthesis. The equation for photosynthesis is 6C02 +6H20+light energyв†’ C6H12O6 + 6O2 (Newton, 2019). The sugar created is stored in the starch. Starch is then used as fuel for plants, these are heterotrophs and autotrophs (Newton, 2019). In photosynthesis, there are two stages that are light-dependent. Light-dependent means that…...
Aerobic Respiration
Words • 514
Pages • 3
Aerobic respiration is the process for transforming Glucose into Co2(Carbon dioxide). and H20(Water as waist product) with the participation of oxygen (O2) for produces energy. As a function, aerobic respiration provides fuel for the repair, growth, and maintenance of cells and tissues. It is the process by which many cells, produce energy using nutrients and oxygen. It also gives rise to carbon dioxide, which later must then release. (equation a mettre). This equation explains why both nutrients and oxygen are…...
BiologyCellular RespirationChemistryHuman PhysiologyPhotosynthesisPhotosynthesis And Cellular Respiration
Aerobic Respiration and Photosynthesis
Words • 513
Pages • 3
Aerobic respiration is the process for converting Glucose into Co2(Carbon dioxide). and H20(Water as waist) with the participation of oxygen (O2) for produces energy. As a function, aerobic respiration provides fuel for the repair, growth, and maintenance of cells and tissues. It is the process by which many cells, produce energy using nutrients and oxygen. It also gives rise to carbon dioxide, which later must then release. (equation a mettre). This equation explains why both nutrients and oxygen are needed…...
Photosynthesis Process in Plants
Words • 371
Pages • 2
What happens to carbon atom during photosynthesis?(Light dependent reactions) ·Light depended reactions occur inside the thylakoids. When the chlorophyll molecules absorb sunlight they give off high energy electrons. They move through a series of electron carrier proteins called electron transport chains in the thylakoid membrane. The proteins in the electron transport chain use the energy to pump hydrogen ions into the thylakoid from the surrounding stroma. The stroma is the gel like fluid inside the chloroplast. The hydrogen ions pumped…...
BiologyCellular RespirationChemistryPhotosynthesisPlants
Previous Studies Revealed That P Deficiency Reduces Net
Words • 382
Pages • 2
Previous studies revealed that P deficiency reduces net photosynthetic rates (Brooks et al., 1988;) due to impaired production of NADPH and ATP (Lauer et al., 1989; Freeden et al., 1989) and stomatal conductance (gs) in different plant species (Li et al., 2006; He et al., 2011; Zribi et al., 2011). For instance, P deprivation has a greater effect on CO2 assimilation compare to light reactions (Lauer et al. 1989), through lowering functional Rubisco content, specific activity and efficiency (Brooks 1986;…...
BiologyChemistryFlower SunflowerPhotosynthesisScience
GMO Way to Solve Malnourishment
Words • 1526
Pages • 7
We often see the availability of food as something that is always there - with supermarket shelves always being fully stocked up and access to any type of craving at any given hour. However, there are background struggles in providing access to food to everyone around the world as there are people in less economically developed countries that do not have easy access to the nutrients they need. As the population of the world increases, there are increasing struggles in…...
AgricultureBiologyChemistryGenetic EngineeringGeneticsPhotosynthesis
Species of Ornithogalum
Words • 1836
Pages • 8
Cultivars of four varied species of Ornithogalum, lisianthus, sunflower and Trachelium were grown using four various colored nets. Out of four varied species three of them showed substantial result in cut flower weight in addition to blossoming and stem length due to net colour. In three lisianthus along with two sunflower cultivars showed noticeable enhance in flowering stem-length as compared to that of black as well as of neutral net. Cut flower weight increase was along with stem-length increase by…...
AgricultureBiologyFlower SunflowerLightPhotosynthesisPlants
The Essentials That Plants Need To Survive Environmental Sciences
Words • 1264
Pages • 6
God’s creation is full of many wonderful creations. Most of these wonderful creations are living things. Three broad groups of living things are animals, humans, and plants. There are many different types of creatures and living things in each group but that’s another topic. Humans and plants have quite a few basic components in common. In this paper, one will learn about how plants grow, what they need to grow, and the processes plants use to grow larger and survive.Humans…...
The spinach leaf
Words • 534
Pages • 3
Aim: The aim of this experiment is to investigate the effect of sodium carbonate and light intensity on the rate of oxygen produced by plants by observing the floating of the Spinach leaf. Hypothesis: When the light hit the leaf it is absorbed by it in order to be used in the process of photosynthesis, which is the process of producing oxygen, but at the same time, light reaches plants in different rates, which may play a role in the…...
Answer Sheet: How Are Microscopic Protest and Fungi Classified?
Words • 445
Pages • 2
1. Different type of protists moves in different ways. Name and describe how one of the protist you observed moves. The Amoeba moves from the bottom left corner towards the top right corner and engulfs the food. 2. Why are plant-like protists important to the food chain? Both protists and fungi serve as important links in the food chains of various ecosystems. Fungi play crucial roles as decomposers, breaking down decaying organisms and wastes. 3. Which of the organisms that…...
Calvin Cycle a Part of Photosynthesis
Words • 300
Pages • 2
The Calvin Cycle is basically a part of photosynthesis where plants take in carbon dioxide and uses ATP and NADPH to make sugars from the CO2 and water for the plant to use or for animals to eat. It does not require light, and is interestingly called the "dark cycle" The first step of this cycle consists of A carbon atom from carbon dioxide molecule will enter the cycle and joins with a five carbon molecule that is present. The…...
What is Cellular Respiration and Photosynthesis?
Words • 420
Pages • 2
Answer the following questions: Cellular respiration: What is cellular respiration and what are its three stages? Cellular respiration is a way cells store food and energy, a catabolic pathway for the production of adenosine triphosphate (ATP). The cellular respiration happens in both eukaryotic and prokaryotic cells. The three stages are Glycolysis, Citric cycle, and electron transport. What is the role of glycolysis? Include the reactants and the products. Where does it occur? Glycolysis splits the sugar that goes in to…...
Cellular RespirationPhotosynthesis
The Oxygen- Carbon Cycle
Words • 276
Pages • 2
The carbon-oxygen cycles are actually two independent cycles. However, both these cycles are interconnected as well as interdependent on each other to some extent. There are four processes involved in the completion of the carbon-oxygen cycle. Oxygen-carbon cycle processes are: * Photosynthesis Plants undergo photosynthesis that helps them produce energy and food for themselves. During photosynthesis, plants take in carbon dioxide (CO2) and absorb water (H2O) with the help of their roots. The chlorophyll present in the leaves and the…...
Cellular RespirationOxygenPhotosynthesisWater
The Success of Photosynthesis in Geranium Leaves
Words • 2519
Pages • 11
I. Abstract Photosynthesis is a process in which plants use light, water, and carbon dioxide to produce sugars, water and oxygen. Chlorophyll a and chlorophyll b, in the chloroplasts of a leaf, are responsible for absorbing wavelengths of light for use in photosynthesis with red and blue wavelengths being optimal. Testing for the most productive wavelength of light was done using four separate geranium leaves that were covered by red, green, and blue translucent filters, and black paper. The experimental…...
Photosynthesis Lab Report
Words • 964
Pages • 4
An experiment to investigate the effects of carbonate concentration in water on the rate of photosynthesis. Aim: The aim is to investigate how increasing carbonate in water can affect the rate of photosynthesis. Introduction: The rate of photosynthesis can be increased or decreased in many different ways. For example, by adding substances like alkaline or salt to the water, you can increase or decrease the acidity or basics, if the water has too much acidity, it can often delay the…...
Global Warming and Photosynthesis
Words • 760
Pages • 4
Paper Type:Synthesis essays
Introduction: Photosynthesis can reduce the amount of carbon dioxide in the air. It represents a sink for carbon dioxide in the environment. Reducing forests and other vegetation can produce a net increase in atmospheric carbon dioxide. Therefore, more photosynthesis might act to reduce global warming. On the other hand, this is a more complicated title than it appears at first. Photosynthesis: The process in green plants and certain other organisms by which carbohydrates are synthesized from carbon dioxide and water…...
ChemistryGlobal WarmingNaturePhotosynthesis
Photosynthesis (Chemical change)
Words • 592
Pages • 3
Description: Photosynthesis is the process by which plants, some bacteria, and some protistans use the energy from sunlight to produce sugar, which cellular respiration converts into ATP, the "fuel" used by all living things. Plants are able to make their own food. Plants produce chlorophyll, a pigment usually found on leaves. It gives the plant its green color while being a key component in making food for itself. How can the change affect the health, environment or industry? Plants use…...
Chlorophyll and Polar Groups
Words • 303
Pages • 2
A pigment solution contains compound A with 4 polar groups and compound B with 2 polar groups. You plan to separate these compounds using paper chromatography with a non-polar solvent. Predict the location of the two bands relative to the solvent front. Explain your answer. Since compound A is probably more polar than compound B, compound B will move further in the chromatography. Since the solvent is non-polar, the less polar compound will be more soluble in the solvent than…...
The Global Carbon Cycle
Words • 827
Pages • 4
The transfer of substances containing carbon between organisms and between organisms and the environment. Carbon is a component of all major molecules in living organisms, which makes obtaining it a very important process. These organisms obtain and lose carbon through the carbon cycle. The cycle begins with carbon dioxide in the atmosphere being fixed into organic molecules through photosynthesis. In photosynthesis, the carbon dioxide diffuses into the leaf through the stomata and is reduced by hydrogen from the light-dependent reaction…...
BiologyBiosphereimportance of atmospherePhotosynthesisScience
Plant Pigment Chromatography
Words • 632
Pages • 3
1. Describe what each of your chromatography strips looked like. Specifically, identify the pigments on each strip and compare their positions to one another. Plants have four types of pigments, namely chlorophyll, carotenoids, anthocyanins, and xanthophylls. These pigments have different polarities and chemical properties. In paper chromatography, the pigments will separate based on their affinity to the medium (paper), and affinity for the solvent. The solvents used in this experiment are water (polar) and acetone (mid-polar). Therefore, the different pigments…...
Cellular Respiration and Photosynthesis
Words • 667
Pages • 3
Photosynthesis and respiration are both processes that are necessary for the survival of organisms. However, in numerous ways these two processes are very diverse as they are responsible for distinct necessities. Therefore they both have similarities and differences. One major difference between the two is that photosynthesis takes place completely in plants while respiration occurs equally in plants and animals. Nevertheless to understand Photosynthesis and respiration, we need to understand what is photosynthesis and cellular respiration and examine each of…...
Cellular RespirationEnergyPhotosynthesis
The Carbon Cycle
Words • 430
Pages • 2
Carbon is the basis for all life on earth. This essay will explain the role of carbon dioxide in various parts of the carbon cycle. This essay will examine two main, and important parts of the carbon cycle, starting by explaining the role of the ocean in absorbing carbon. Next this essay will examine the human influences on the carbon cycle and human production of carbon dioxide. Thirdly this essay will explain what controls thecarbon dioxide concentration. The ocean holds…...
How light intensity effects the rate of photosynthesis
Words • 1826
Pages • 8
In my investigation I am going to establish the effect of changing light intensity on the rate of photosynthesis. What is Photosynthesis? Photosynthesis is how plants get their food. The reason why plants have leaves, roots or being green is all linked to photosynthesis. In photosynthesis, a plant takes carbon dioxide from the air and water from the soil and uses the light from sunlight to turn them into food. Photosynthesis occurs only in the presence of light, and takes…...
ChemistryLightLight EnergyOxygenPhotosynthesis
The effect of light intensity on the rate of photosynthesis
Words • 1650
Pages • 7
Aim The aim of my experiment is to find out how light intensity affects the rate of photosynthesis. Prediction I predict that as the light intensity increases that the rate of photosynthesis will increase in proportion, so for example if you increase the light intensity from 10cm away to 20 cm away form a stationary plant. There for the rate of photosynthesis will decrease proportionally with the distance of the light from the plant (in this case a half). This…...
Role of Mitochondria and Chloroplast in Photosynthesis
Words • 630
Pages • 3
When comparing and contrasting the mitochondria and chloroplast, a person learns all of the similarities and differences between the two. In this essay, you will read about the mitochondria, the chloroplast, and their biochemical reactions. The mitochondria often referred to as the powerhouse cell is found in the eukaruotic cells. There, those cells are often found in groups of hundreds. Mitochondria cells can be anywhere from 1 to 10 um long in length, but are able to change shapes, move,…...
Separation of leaves pigment
Words • 591
Pages • 3
The photosynthetic pigment is used to absorb light during the process of photosynthesis. There are five pigments usually found in spinach leaves: Carotene (yellow), Phaeophytin (yellow-grey), Xanthophyll (yellow-brown), Chlorophyll a (blue-green), Chlorophyll b(green). Photosynthetic pigment is located in the chloroplast of the leaf. The function of chlorophyll a and chlorophyll b is to trap red and blue violet light when they carry out photosynthesis, chlorophyll a occurs in green plants while chlorophyll b occurs in green algae.Carotene and Xanthophyll are…...
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FAQ about Photosynthesis

Investigation to find out how light intensity effects the rate of photosynthesis
...Like all experiments there is always room for improvement and this one is no exception. My main limitation was time. If there had been enough time I could have carried out the same experiments but in various different ways, another problem that occur...
What are the differences between Hetrophic & Autotrophic nutrition?
...We mechanically digest our food with various physiological structures such as out teeth and our mouths. The teeth grind the food down so that it is ready for mechanical digestion by enzymes and other chemicals in the stomach and along the alimentary ...
Answer Sheet: How Are Microscopic Protest and Fungi Classified?
...The first multicellular eukaryotes evolved at least 1.2 billion years ago as colonies of singe celled organisms. Their modern descendants include multicellular protists, such as seaweeds, other evolutionary branches stemming from the ancient protists...
What is Cellular Respiration and Photosynthesis?
...Visit the NASA website ( and research global temperature changes. How has global warming affected overall temperatures? What effects do cellular respiration and photosynthesis ...
How light intensity effects the rate of photosynthesis
...I and my group all learnt that after an intensive investigation into how the rate of photosynthesis is affected by the amount of light intensity that the higher the light intensity the faster the rate of reaction. We also learnt that if the light int...

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