The Effects Of Color Filter On The Rate Of Photosynthesis In Elodea

Photosynthesis is a vital process that requires to utilize energy for plants. This experiment was done to evaluate the effects of carbon availability on photosynthetic activity. The aquatic plant Elodea densa was placed into sodium bicarbonate solutions of five concentrations ranging from 0.1% to 1.0%, in five independent trials (excluding the negative control treatment of water). The temperature and light intensity was constant. The results indicated a directly proportional relationship between the availability of carbon dioxide and the rate of photosynthesis of Elodea Densa, as photosynthesis continued to increase with increasing amounts of bicarbonate. The most O2 amount of oxygen produced was with the 0.7% NaHCO3 concentration and least with the control of water. The null hypothesis that stated carbon concentration does not affect rate of photosynthesis of the aquatic plant was rejected. The predicted hypothesis that an increase in bicarbonate concentrations results in an increase in the photosynthetic rate was accepted. In conclusion, there is a significant increase in photosynthetic activity as the concentration of NaHCO3 increases.

The light-dependent reactions produce oxygen gas and convert ADP and NADP+ into energy and NADHP. The light-dependent reactions occur in the thylakoid.

A bar graph representing how much photosynthesis three separate Elodea plants were able to perform under three different light treatments, normal, red and green light. The light treatments enhanced certain wavelengths of light which, due to the absorption spectrum of chlorophylls a and b and carotenoid pigments, altered the amount of photosynthesis a plant was able to perform in a certain amount of time. Each Elodea plant was subjected to a different light treatment, one to normal light, another to red and the third to green light while in a test tube of water for a total of two hours. Photosynthetic processes were observed by means of water displacement in the pipette attached to the test tube and were measured in millilitres. The mass of

This is known as the light dependent reaction of photosynthesis. The goal of photophosphorylation is to take the energy from sunlight and convert it into chemical energy for the Calvin cycle. The Calvin cycle then takes this chemical energy and uses it to make glucose. Photophosphorylation begins when a photon (packet of light) is absorbed by a pigment (light absorbing molecule), which is attached to a protein along the thylakoid membrane of the chloroplast. The energy from the photon creates resonance (electron passing from one pigment to the next), which eventually reaches a special reaction center. The reactions center is a protein that houses a special pair of chlorophyll molecules capable of releasing electrons. When the chlorophyll molecules get excited, they release two electrons. These two electrons then move along the membrane through a series of specialized protein releasing energy as they go. This action creates an H+ gradient inside the lumen of the chloroplast. Eventually the electrons reach the end of the chain and attach onto electron carriers. The H+ flow across the ATP Synthase protein where they meet up with ADP (andesine diphosphate) and Pi (phosphate group) to from ATP. The chemical energy created can then be used in the Calvin

The mitochondria and chloroplasts are two very different organelles, but they are also very similar. Both of these organelles are very vital to their cells. Without them the cells would have no energy to work with. The mitochondria and chloroplasts are important factors in cellular respiration and in photosynthesis. Even though you get the same output, the process in which each happens can have differences and similarities.

To determine the effect of light on CO2 production for photosynthesis, the amount of light an Elodea plant received was inhibited with a mesh cloth while a second beaker of the same Elodea plant was exposed to the full light intensity. The purpose of this experiment was to then compare and determine if CO2 production would be decreased if direct light was inhibited.

All plants are autotrophs meaning they capture energy from different environments through a process called photosynthesis. Many plants, photoautotrophs, are a sore example of organisms that make their own food by harnessing the suns energy. Plants use the sun’s energy and convert it to chemical energy to create organic molecules to aid in ecosystem advancement. Additionally, photoautotrophs serve as a source of food for many consumers as they provide energy and building materials for cells and body parts.

In the Z-pathway, photosystem II, pigments are excited by four photon in the antenna complex (phycobilisome), which passes the excitation along to the next pigment in the complex until it reaches the reaction center (chlorophyll a). The reaction center then uses the energy from the four photons to split two water molecules in an oxidation reaction, generating four electrons, four hydrogen ions and an oxygen molecule.

The light-dependent reactions starts inside Photosystem II. A photon is pulled in by a P680 chlorophyll molecule. When a chlorophyll molecule ingest light, the vitality from this light causes an electron within the chlorophyll molecule to a higher energy level. The chlorophyll molecule is activated. This reaction in photosynthesis changes light energy into chemical energy. When chlorophyll molecule gets initiated then the energy that is created from the light is sent from one P680 chlorophyll molecule to another until it arrive at the reaction center of Photosystem

Light  C6H12 O6(Glucose) + O2. Photosynthesis occurs in the chloroplast. The chloroplast is an organelle made up of different parts that all work together. First you have the chloroplast as a whole. Then you have the outer membrane of the chloroplast.

Light dependent reactions occur in the chloroplasts of a plant. Inside of chloroplasts are membranes called thylakoids, a folded membranous structure that holds chlorophyll. In order for the plant to make glucose, the plant must harness light energy and change it into chemical energy. In light dependent reactions, the plant uses light energy to make ATP and NADPH. The ATP is used in the next stage of the reactions, the light independent, also known as the Calvin Cycle. The light first enters photosystems I and II. The photosystems contain chlorophyll to help them capture the light. The light excites electrons which then passes its energy to another pigment molecule. When it passes its energy on, the electron drops into a stable energy level

To investigate the effect of varying the distance (cm) of the Elodea plant from the light source at (5cm, 15cm, 25cm, 35cm and 45cm) (±0.05) on the photosynthetic rate by counting the number of oxygen bubbles rising up the test tube per minute (bubbles 〖min〗^(-1)).

     Photosynthesis has a two-stage performance before plants produce the two products they are known to produce. These stages are Photosystem I and II. Photosystem II is dependant on light reactions for energy which causes the electrons to be react and be transferred to Photosystem II. The electrons are transported through the Photosystem II electron transport system, however some energy is used to drive ATP synthesis. Meanwhile, light is being absorbed by the Photosystem I, which causes the electrons to react. This process sends the electrons to the Photosystem I transport system where some energy is released as electrons travel through the electron transport system and is captured as NADPH. When this process is completed oxygen is released from the plant and glucose has been

Photosynthesis is the process plants use to make glucose and oxygen by using carbon dioxide from the atmosphere, water from underground, and the energy of sunlight. Photosynthesis occurs in the leaves of the plant because the cells there have organelles called chloroplasts. The chloroplasts contain chlorophyll, a chemical that absorbs the energy of sunlight. The light energy, the CO2 and the water that the plant has absorbed in its roots is converted to glucose and oxygen. The plant stores the glucose as starch for energy, and expels the oxygen through its leaves.

     To metabolic pathways involved in photosynthesis are light reaction and dark reaction. The first stage of the photosynthetic system is the light-dependent reaction, which converts solar energy into chemical energy. Light absorbed by chlorophyll or other photosynthetic pigments is used to drive a transfer of electrons and hydrogen from water to and acceptor called NADP , reducing it to the form of NADPH by adding a pair of electrons and a single proton. The water or some other donor molecule is split in the process. The light reaction also generates ADP, a process called photophosphorylation. ATP is a versatile source of chemical energy used in most biological processes. The light reaction produces no carbohydrates such as sugars.