Photosynthesis is the process by which plants, algae, and cyanobacteria use sunlight, carbon dioxide, and water to produce oxygen and energy in the form of glucose. It occurs in two stages - the light reaction phase which is dependent on light, and the dark phase or Calvin cycle which is light independent. The main pigments used in photosynthesis are chlorophyll a and b, which absorb light and reflect green light, giving leaves their green color, and carotenoids which also absorb light. Photosynthesis provides nutrients and oxygen for other organisms.
Bio 107 General Ecology
Objectives:
Identify and describe
the flow of nutrients in
each biogeochemical
cycle.
Explain the impact
that humans have on
the biogeochemical
cycles.
Biogeochemical Cycles and Human ActivitiesAmos Watentena
A biogeochemical cycle is one of several natural cycles, in which conserved matter moves through the biotic and abiotic parts of an ecosystem. In geography and Earth science, a biogeochemical cycle or substance turnover or cycling of substances is a pathway by which a chemical substance moves through biotic (biosphere) and abiotic (lithosphere, atmosphere, and hydrosphere) compartments of Earth. The following presentation discusses the role of humans in the biogeochemical cycles.
Bio 107 General Ecology
Objectives:
Identify and describe
the flow of nutrients in
each biogeochemical
cycle.
Explain the impact
that humans have on
the biogeochemical
cycles.
Biogeochemical Cycles and Human ActivitiesAmos Watentena
A biogeochemical cycle is one of several natural cycles, in which conserved matter moves through the biotic and abiotic parts of an ecosystem. In geography and Earth science, a biogeochemical cycle or substance turnover or cycling of substances is a pathway by which a chemical substance moves through biotic (biosphere) and abiotic (lithosphere, atmosphere, and hydrosphere) compartments of Earth. The following presentation discusses the role of humans in the biogeochemical cycles.
The Aquatic Ecosystem is a game-changer in the field of aquariums. Aquatic ecosystems manage water quality and deliver a healthy, clean environment for fish to thrive. This product is at an early stage of its development and has a unique value proposition.
Environmental science Module 1 Topic. This PPT is not a work of mine and was provided by our college professor during our graduation, so I am not sure about the original author. The credit goes to the Original author.
Removal of Heavy Metals from Waste Water Using Water HyacinthIDES Editor
Water pollution has become one of the most serious
problems of today’s civilization. In the last few years
considerable amount of research has been done on the
potential of aquatic macrophytes for pollutant removal or even
as bio-indicators for heavy metals in aquatic ecosystems. Water
hyacinth is one of the aquatic plant species successfully used
for wastewater treatment. It is very efficient in removing
pollutants like suspended solids, BOD, organic matter, heavy
metals and pathogens. This paper mainly focuses on the
treatment of waste water using the plant ‘water hyacinth’ and
has given emphasis to the removal of heavy metals by the
plant. Water hyacinth’ could grow in sewage; they absorb and
digest the pollutants in wastewater, thus converting sewage
effluents to relatively clean water. Thus, the plants hold
promise as a natural water purification system, which could
be established at a fraction of the cost of a conventional sewage
treatment facility. The study conducted in this regard revealed
how efficiently wastewater could be treated using the plant
‘Water hyacinth’.
Photosynthesis (Light and Dark reaction of photosynthesis)Shekhar Tidke
Importance of photosynthesis. Light reaction of photosynthesis, Dark reaction of photosynthesis. Hill, and Blackman reaction or C3 cycle or Calvin Cycle
The Aquatic Ecosystem is a game-changer in the field of aquariums. Aquatic ecosystems manage water quality and deliver a healthy, clean environment for fish to thrive. This product is at an early stage of its development and has a unique value proposition.
Environmental science Module 1 Topic. This PPT is not a work of mine and was provided by our college professor during our graduation, so I am not sure about the original author. The credit goes to the Original author.
Removal of Heavy Metals from Waste Water Using Water HyacinthIDES Editor
Water pollution has become one of the most serious
problems of today’s civilization. In the last few years
considerable amount of research has been done on the
potential of aquatic macrophytes for pollutant removal or even
as bio-indicators for heavy metals in aquatic ecosystems. Water
hyacinth is one of the aquatic plant species successfully used
for wastewater treatment. It is very efficient in removing
pollutants like suspended solids, BOD, organic matter, heavy
metals and pathogens. This paper mainly focuses on the
treatment of waste water using the plant ‘water hyacinth’ and
has given emphasis to the removal of heavy metals by the
plant. Water hyacinth’ could grow in sewage; they absorb and
digest the pollutants in wastewater, thus converting sewage
effluents to relatively clean water. Thus, the plants hold
promise as a natural water purification system, which could
be established at a fraction of the cost of a conventional sewage
treatment facility. The study conducted in this regard revealed
how efficiently wastewater could be treated using the plant
‘Water hyacinth’.
Photosynthesis (Light and Dark reaction of photosynthesis)Shekhar Tidke
Importance of photosynthesis. Light reaction of photosynthesis, Dark reaction of photosynthesis. Hill, and Blackman reaction or C3 cycle or Calvin Cycle
This PPt deals about bacterial photosynthesis, different types of photosynthetic bacteria, types of photosynthesis-OXygenic and anoxygenic , photosynthetic structures, photosynthetic pigments and also explain the light reactions and dark reactions.in dark reactions, in addition to Calvin cycle, bacteria has one more carbon dioxide fixation (Pyruvate reductase pathway)
PHOTOSYNTHESIS: What we have learned so far? Zohaib HUSSAIN
No matter how complex or advanced a machine, such as the latest cellular phone, the device cannot function without energy. Living things, similar to machines, have many complex components; they too cannot do anything without energy, which is why humans and all other organisms must “eat” in some form or another. That may be common knowledge, but how many people realize that every bite of every meal ingested depends on the process of photosynthesis?
2. WHAT IS PHOTOSYNTHESIS?
• The process that occurs in green plants, whereby
solar energy is converted into chemical energy and
stored as organic molecules by making use of
carbon dioxide, sunlight and water.
• WHO OR WHAT CAN PHOTOSYNTHSIZE?
1. Photoautotrophs can photosynthesize.
2. Include: green plants, algae, cyanobacteria and
green protists
3. RAW MATERIALS OF
PHOTOSYTHESIS?
Carbon dioxide,
Sunlight and
Water.
WHY DO PLANTS PHOTOSYNTHESIS?
To provide nutrients and oxygen for heterotrophs
are dependents, because they cannot produce
there own food.
4. PHOTOSYNTHESIS CONSIST OF 2
STAGES:
LIGHT REACTION PHASE DARK PHASE/CALVIN CYCLE
• Dependent on light • Light independent
7. MAIN PIGMENTS USED DURING
PHOTOSYNTHESIS
Chlorophyll a- Absorb violet, blue and red light.
Reflects and transmits green light (that is why plant
leaves appear green).
Chlorophyll b- Absorb violet, blue and red light.
Reflects and transmits green light (that is why plant
leaves appear green).
Carotenoids- Play an accessory role in
photosynthesis. They are shades of yellow and
orange are able to absorb light in the violet- blue-
green range. There pigments became noticeable in
the fall when chlorophyll breaks don.
9. LIST OF REFERENCES
• Hill, R. (May 1999). "Oxygen Produced by Isolated
Chloroplasts". Proceedings of the Royal Society of
London. Series B, Biological Sciences 127 (847): 192–
210
• www.emc.maricopa.edu/faculty/farabee/biobk/bi
obookps.htmlCached - Similar.