Name 5 factors that can affect the rate of photosynthesis.2.
In this experiment we were told that we would be measuring the rate of photosynthesis.
the rate of photosynthesis minus the rate of cellular respiration).
A) sunlight concentration B) temperature C) chlorophyll concentration D) carbon dioxide availability Effects of the variables and there concentrations: The amount of sunlight will decide the rate of photosynthesis as there will be a an increased rate of photosynthesis due to the increased availability of photons of light....
The of a is the amount of biomass produced through photosynthesis per unit area and time by plants, the primary producers. Primary productivity is usually expressed in units of energy (e.g., joules m day ) or in units of dry organic matter (e.g., kg m year ). Globally, primary production amounts to 243 billion metric tons of dry plant biomass per year. The total energy by plants in a community through photosynthesis is referred to as (). Because all the energy fixed by the plant is converted into sugar, it is theoretically possible to determine a plant's energy uptake by measuring the amount of sugar produced. A proportion of the energy of gross primary productivity is used by plants in a process called . Respiration provides a plant with the energy needed for various plant physiological and morphological activities. The general equation for respiration is:
The RATE of that particular reaction is high.
They found that elevated CO2 increased rates of net photosynthesis in about 85% of the reported studies, while reducing stomatal conductances and rates of transpiration in approximately 75% of the cases analyzed....
Photosynthesis can be defined as the
physico-chemical process by which photosynthetic organisms use light energy to drive the synthesis of organic compounds.
Photosynthesis consists of two connected sets of reactions....
All of the sugar produced in the photosynthetic cells of plants and other organisms is derived from the initial chemical combining of carbon dioxide and water with sunlight.
By setting variables in the experiment, we can determine what are the major necessities for photosynthesis to take place.
30 leaf disks were hole punched out of spinach leaves.
The same cycle of the light reaction then takes place.
Measuring the rate of photosynthesis
I am trying to find out if the distance of the pond-weed from a lamp will change the rate of photosynthesis.
Lab: Exploring the Rate of Photosynthesis - The Biology …
Hypothesis: The rate of photosynthesis in the water plant hydrilla will change as the rate of carbon dioxide changes.
to estimate the rate of photosynthesis and I don't have ..
Photosynthesis mainly takes place in the Palisade Mesophyll cells, which are situated near the top of the leaf....
Net rate of photosynthesis | scholarly search
The purpose of this lab is to observe photosynthetic reactions within different environments to determine the optimum setting for photosynthesis to occur.
Factors that affect the rate of photosynthesis
Every minute for 10 minutes the number of floating leaf disks was counted and recorded.
If a cup of leaf disks is placed under the lamp, then the rate of photosynthesis, and therefore the rate at which the leaf disks float, will be faster than in the cup placed in the shade.
Lab #5: PHOTOSYNTHESIS
# of Floating Disks with Bicarbonate Ions
# of Floating Disks without Bicarbonate Ions
When we placed the solution containing the discs in the light,
1st Trial: # of Floating Disks
variable: amount of Sodium Bicarbonate
variable: type of light
2nd Trial: # of Floating Disks
By Agatha Taneza, Julia Davis, David Feingold, and Florian Ionescu
they rose at a much higher rate than that of the ones placed in the shade.
Rate of photosynthesis Design Free Paper Example
Respiration refers to the metabolism of oxygen and the release of carbon dioxide. In it is a positive term, a process vital to life. But photorespiration is an entirely negative term because it represents a severe loss to the process of using light energy in photosynthetic organisms to fix carbon for subsequent carbohydrate synthesis. By leading to the loss of up to half of the carbon that has been fixed at the expense of light energy, photorespiration undoes the work of photosynthesis.
What is the rate of photosynthesis? ? | Yahoo Answers
Sugars created in photosynthesis can be later converted by the plant to starch for storage, or it can be combined with other sugar molecules to form specialized carbohydrates such as , or it can be combined with other nutrients such as nitrogen, phosphorus, and sulfur, to build complex molecules such as and .
Low light intensity lowers the rate of photosynthesis
The acidity was found to arise from the opening of their stomata at night to take in CO2 and fix it into malic acid for storage in the large vacuoles of their photosynthetic cells. It could drop the pH to 4 with a malic acid concentration up to 0.3M . Then in the heat of the day, the stomata close tightly to conserve water and the malic acid is decarboxylated to release the CO2 for fixing by the Calvin cycle. PEP is used for the initial short-term carbon fixation as in the , but the entire chain of reactions occurs in the same cell rather than handing off to a separate cell as with the C4 plants. In the CAM strategy, the processes are separated temporally, the initial CO2 fixation at night, and the malic acid to Calvin cycle part taking place during the day.
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