As you have hopefully deduced by looking at the title of the lab, the name of the cycle is the carbon cycle. Carbon is constantly being moved around the Earth through the processes that make up the Carbon Cycle.
Algae have a wide range of antenna pigments to harvest light energy for photosynthesis giving different types of algae their characteristic colour.
The processes of photosynthesis in algae and higher plants are very similar. Algae are proposed to play a role in the global carbon cycle by helping remove excess carbon dioxide from the environment. Owing to their efficient absorption and conversion of solar energy into chemical energy, algae have great potential for biotechnological and biofuel applications.
Key Concepts Algal photosynthesis account for almost half of the photosynthetic carbon fixed every year. Scientists have utilised different algal species, including algal mutants, to study different aspects of photosynthesis.
The major antenna pigments in algae include chlorophylls, phycobiliproteins and carotenoids, and the variation in the composition and relative abundance of these pigments give algae their distinctive colour. Antenna complexes are proteins with many bound antenna pigments, which are important in absorbing light energy.
Algal photosynthesis is thought to increase when key nutrients such as N, P and Fe are available. This can sometimes lead to algal blooms. If algal photosynthesis increased more carbon dioxide might be removed from the environment. Photosynthetic biofuel production still is a promising alternative form of energy supply, and algal photosynthesis is the system of choice for energy applications.
General scheme of algal photosynthesis showing the separation of the electron transport chain and the Calvin cycle. General arrangement of antenna complexes in algae. In green algae as well as in higher plants a the antenna complex is in the membrane and associates with the photosystem in the membrane.
In red algae and cyanobacteria b the antenna complex is a phycobilisome and is a soluble protein. The phycobilisome attaches to the photosystem where the photosystem extends from the membrane. SeaWiFS satellite image showing chlorophyll content in the ocean. This image was an average of images taken in June The bright green and yellow colours indicate high levels of chlorophyll.
References Anemaet I, Bekker M and Hellingwerf KJ Algal photosynthesis as the primary driver for a sustainable development in energy, feed, and food production. Plant Biotechnology Journal Emerson R and Arnold W The photochemichal reaction in photosynthesis.The Calvin cycle is a set of light independent redox reactions that occur during photosynthesis and carbon fixation to convert carbon dioxide into the sugar glucose.
These reactions occur in the stroma of the chloroplast, which is the fluid-filled region between the thylakoid membrane and inner membrane of . photosynthesis and the carbon cycle HA&S C, Billy Brazelton, 11/4/04 We have been talking different forms of energy (mechanical, kinetic, potential, thermal, chemical) and different sources of energy (fossil fuels, crops, wind, solar).
The role that plants play in the carbon cycle is to absorb carbondioxide and release oxygen as part of the process ofphotosynthesis. Humans on the other hand, absorb oxygen an d releasecarbon dioxide through the process of respiration. Carbon is fundamental to life -- all organic forms of life contain it.
On Earth, carbon cycles through the atmosphere and the planet itself. This cycle has two components. In plants, photosynthesis occurs mainly within the leaves. Since photosynthesis requires carbon dioxide, water, and sunlight, all of these substances must be obtained by or transported to the leaves.
Carbon dioxide is obtained through tiny pores in plant leaves called stomata. Oxygen is . During photosynthesis, chlorophyll absorb light energy that is used to convert carbon dioxide from the air and water from the soil into glucose.
Oxygen is released as a by-product. Some glucose is used for respiration, while some is converted into insoluble starch. Photosynthesis occurs in plants.