An experiment to determine how different colors of light affect the photosynthetic rate of spinach l

Typical usage[ edit ] Grow lights are used for horticulture, indoor gardening, plant propagation and food production, including indoor hydroponics and aquatic plants.

Modern horticultural HPS lamps have a much better adjusted spectrum for plant growth. PCA reduces sodium loss, which in turn reduces color shift and variation compared to standard MH bulbs.

This was because after 10 minutes all the disks on four out of the five treatments were found floating. It is essential in creating the sugars that sustain life.

Tube tubes were placed 37 mm, 27 mm, and 5 mm away, respectively. This brings us to a question for further experimentation. Example of an HPS grow light set up in a grow tent.

At 37 mm away from the light, the absorbance decreased at 0. Situated in the membrane of the thylakoid membrane is the electron transport chain. Blue spectrum light may trigger a greater vegetative response in plants. You have to come up with a hypothesis in the truest sense. Each trail consisted of measuring the amount of CO2, with a CO2 gas sensor under blue light, red light, and green light.

Treatments were performed at room temperature. Abstract Photosynthesis in plants is affected by the intensity of the light the plant is exposed to. It provides ATP which can be used for energystarch, cellulose, fats, and nucleic acids among other large molecules, and it consumes CO2 to produce O2 Chiras, Experimental Design Your table will design an experiment to test how a selected variable affects the rate of photosynthesis.

Grow light

Metal halide and HPS lamps produce a color spectrum that is somewhat comparable to the sun and can be used to grow plants.

To change between the lights, only the bulb needs changing and a switch needs to be set to the appropriate setting. Behind the water containers we placed lights directed at the plant. Our results are contradictory with our hypothesis, based on our statistical results. At light intensities greater thenhowever, light intensity is no longer limiting.

Tube-style fluorescent lights[ edit ] Fluorescent grow lights are not as intense as HID lights and are usually used for growing vegetables and herbs indoors, or for starting seedlings to get a jump start on spring plantings.

Light energy is the key to photosynthesis. Discussion will include the ideas that not all plants photosynthesize at the same rate. In this experiment, number of leaf floating segments floating were counted at five minute intervals for 20 minutes.

The Effect Light Intensity Has on the Photosynthesis of Spinach Chloroplasts

Assessment Two rubrics will be used to assess student lab report sample of report included below and student participation. By converting light energy into chemical energy in the form of carbohydrates, it not only sustains the life of photosynthetic organisms themselves called Sorry, but full essay samples are available only for registered users autotrophsbut also provides food for the heterotrophs that consume autotrophs.

A range of bulb types can be used as grow lights, such as incandescentsfluorescent lightshigh-intensity discharge lamps HIDand light-emitting diodes LED. Learn more about biology, paramecium, chemistry, electronics, microscopy (Microscope), Amateur Radio, Photography, Radio Astronomy, Science, Home Learning and much.

This study was undertaken to determine the relationship between of light intensity and rate of photosynthesis in spinach leaves. Rate of photosynthesis was determined at pH 7, % NaHCO3, room temperature, and under white light using light intensities of, lux.

Our experiment tested which color (red, blue, green) would influence the plant to produce the most amount of photosynthesis. There are four main photosynthetic pigments found in the chloroplast of the plant called chlorophyll a, chlorophyll b, xanthophylls, and carotenes.

The intensity of light directly affects the rate of photosynthesis (Bidwell, ). Graphs show that the higher the intensity, the higher rate of photosynthesis. The intensity in this experiment was increased by moving the tube closer to the light.

There are 4 matters that affect on the rate of photosynthesis, light intensity,temperature, CO2, water and the color of light in general. In this lab, the color of light isinvestigated. Since the photosynthesis takes place in chloroplast that has chlorophyll, the rateof photosynthesis is affected by the color of light as the amounts of light.

A grow light or plant light is an artificial light source, generally an electric light, designed to stimulate plant growth by emitting a light appropriate for lights are used in applications where there is either no naturally occurring light, or where supplemental light is required.

For example, in the winter months when the available .

An experiment to determine how different colors of light affect the photosynthetic rate of spinach l
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