An examination of the process of photosynthesis

CAM plants have a different leaf anatomy from C3 plants, and fix the CO2 at night, when their stomata are open.

Examination How Different Coloured Rays of Light Affect Photosynthesis Essay

Another consideration is the effectiveness of coloured cellophane to produce the light colour required to test the hypothesis.

The fixation or reduction of carbon dioxide is a process in which carbon dioxide combines with a five-carbon sugar, ribulose 1,5-bisphosphateto yield two molecules of a three-carbon compound, glycerate 3-phosphatealso known as 3-phosphoglycerate. This rapid evolution is important in medicine, as it has led to the development of multidrug resistant pathogenic bacteriasuperbugs, that are resistant to antibiotics.

Various factors may have influenced the accuracy of the results obtained.


The shorter a light wavelength, the more energy it has and the higher the rate of photosynthesis. Students will be able to consider the role of their discipline in diverse cultural and global contexts.

To protect against possible infection, gloves and face masks should be worn when handling potting mix. The actual average growth of each colour group is shown in Table 2 below. In the non-cyclic reaction, the photons are captured in the light-harvesting antenna complexes of photosystem II by chlorophyll and other accessory pigments see diagram at right.

Weeks 2, 4, 6: Its production leaves chlorophyll in photosystem I with a deficit of electrons chlorophyll has been oxidizedwhich must be balanced by some other reducing agent that will supply the missing electron.

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PC molecules are water soluble and can move through the inner space of the thylakoids, carrying electrons from one place to another. Several modifications of chlorophyll occur among plants and other photosynthetic organisms.

Animals need air to breathe as a source of oxygenfood to eat to provide energycertain minerals to provide some of the body's needs and water to drink. The overall equation for the light-independent reactions in green plants is [24]: This is particularly evident in the area of agriculture, where optimum crop productivity is important to meet the increased demand for food by the growing world population.

Wednesday 9 am - 11 am Semester 1: Protein coenzymes, also called cofactorsinclude important electron carrier molecules called cytochromeswhich are iron-containing pigments with the pigment portions attached to protein molecules.


Why do Plants need Sunlight? Water enters the root and is transported up to the leaves through specialized plant cells known as xylem vessels.

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Competition between different members of the same species is called intra-species competition. C4 carbon fixation Plants that use the C4 carbon fixation process chemically fix carbon dioxide in the cells of the mesophyll by adding it to the three-carbon molecule phosphoenolpyruvate PEPa reaction catalyzed by an enzyme called PEP carboxylasecreating the four-carbon organic acid oxaloacetic acid.

In proteins with a total molecular weight ofbased on the weight of hydrogen as onethere are 2 atoms of manganese10 atoms of ironand 6 atoms of copper. Oxaloacetic acid or malate synthesized by this process is then translocated to specialized bundle sheath cells where the enzyme RuBisCO and other Calvin cycle enzymes are located, and where CO2 released by decarboxylation of the four-carbon acids is then fixed by RuBisCO activity to the three-carbon 3-phosphoglyceric acids.

Sixteen thousand species of plants use CAM. Chlorophyll reflects green light so leaves appear green and absorb more blue and red light 4.

This can occur in one of several ways. Tweets by CADeptEd California Department of Education We oversee the state's diverse public school system, which is responsible for the education of more than six million children and young adults in more than 10, schools withteachers.

Turn on each lamp. If lightwaves at higher intensity result in a higher rate of photosynthesis, then plants grown under red will have a faster growth rate than plants grown under other colours in the visible light spectrum. Chlorophyll a absorbs its energy from the violet-blue and reddish orange-red wavelengths, and little from the intermediate green-yellow-orange wavelengths.§ Implementation of Texas Essential Knowledge and Skills for Agriculture, Food, and Natural Resources, Adopted (a) The provisions of this subchapter shall be implemented by school districts beginning with the school year.

Photosynthesis occurs in two stages. In the first phase, light-dependent reactions or photosynthetic reactions (also called the Light reactions) capture the energy of /5(1).

(8 pts) Describe the process of how ATP is made in the Electron Transport Chain, include in your discussion the role of: the electron transport chain, oxygen, NADH/FADH2, H+, ATP synthase, which molecules are oxidized and.


a process that binds ADP and a phosphate group together to produce ATP What does chemiosmosis enable? Chemiosmosis enables light-dependent electron transport to produce NADPH and ATP. atmosphere has been removed by photosynthesis, chemosynthesis, and weathering.

Currently, most of the carbon dioxide now resides in Earth’s limestone sedimentary rocks, in coral reefs, in fossil fuels, and in the living components of the present-day biosphere.

Photosynthesis is a process used by plants and other organisms to convert light energy into chemical energy that can later be released to fuel the organisms' activities. This chemical energy is stored in carbohydrate molecules, such as sugars, which are synthesized from carbon dioxide and water – hence the name photosynthesis, from the Greek φῶς, phōs, "light", and σύνθεσις.

An examination of the process of photosynthesis
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