An+Ting

BioExpPlan

An Ting Cheng
 * __Effect of Bean Growth__**

The light affects the plant, but does the different colored affect the plant growth? If the light color affects the plant growth, we can use the different colored light lets the plant can grow faster.
 * Relevance:**

How does the light and colored light affect the plant growth?
 * Goals:**

The light affects the plant growth and the different colored also light affects the plant growth.
 * General Expectation and Models:**

Independent variable and how it will be measured: -Use the same bean, like red bean or green bean…
 * Variables:**

Dependent variable(s) and how it (they) will be measured: -Give the bean different environment to growth

Variables held constant: 1. Use the same kind of the beans. 2. Have to give them the same environment, like water as many as water to every plants, and put them at the same place, not some plants put the sunshine place, and others put at the dark place.

Bean Growth 1. cups 2. beans 3. tissue
 * Procedure/Method:**

Bean Growth 1. put the beans into different cups 2. put the different cups at different place, give them different environment
 * Step-by-step:**

I work the investigation by myself. Maybe I have to get all of the materials by myself. When I finish making the colored, I will start the investigation. The only problem is that I don’t know where can I get the plants? Do I have to buy them?

Beans growth
 * Sketch of the Setup:**

The different color will affect the plant growth because the different colored lights have different wavelengths. Some of the beans will grow faster, but some of beans will grow slower because I think the different wavelengths will affect the growth of plant. Some of the colored light will help the bean growth, but some of the colored light doesn’t. The blue and red light, which plant absorb, will have the greatest effect on plant growth. Blue light is responsible primarily for vegetative or leaf growth. Red light, when combined with blue light, encourages flowering. Plants look green to us because they reflect, rather than absorb, green light. I also do the experiment of the Light-Dependent Reaction. I put on cup of bean at the place where there isn’t any sunlight and I put another cup under the sunlight. After a few days, the bean in the dark place will grow slower than the bean under the sunlight because the bean needs the sunlight to do the photosynthesis to make it own energy to grow. The bean in the dark place will grow slower than any other beans because it doesn’t absorb the any sunlight or light.
 * Expectations:**

Beans Growth May 11th 2007 White Red Black Yellow Green Blue May 15th 2007 White Red Black Yellow Green Blue May 17th 2007 White Red Black Yellow Green Blue May 21st 2007 White Red Black Yellow Green Blue May 23rd 2007 White Red Black Yellow Green Blue Analysis: The beans with the blue and yellow light grow faster than others. The beans under the sunshine grows slower than the bean in the dark because the air conditioner dries the water in the white cup that the beans under the sunshine doesn’t have the water.
 * Data:**

I expect that the bean with the red and blue light will grow faster than others. I also expect that the bean in the dark will grow slower than the bean under the sunshine. In fact, the bean with yellow light grows the best and the bean in the dark place grows better than the bean under the sunshine. The bean with the blue light grows second best. The bean in the dark place also grows better than the bean with the red and green light. The bean in the dark place grows better than the bean under the sunshine because the air conditioner dries the water that the bean doesn’t have enough water to grow. The bean what put in the classroom doesn’t have enough water to grow. The bean with the red light grows slow because maybe the light is hard to pass through the paper. The bean with the green light has the same problem. The colors of the yellow and blue paper are really light, so I think the light is easy to pass through. There is an aperture on the blue paper that the light can pass through the paper from the aperture. After a few days, all the beans turn into green except the bean in the dark place. I think it is because the bean in the dark place can’t really have the photosynthesis that it doesn’t have the chlorophyll. I realize that the water really affect the plant growth. I knew the water affects the plant growth, but I didn’t know that it can affect that much. The water can help the plant in the dark place grow faster than the plant under the sunshine. Maybe next time I have to use the cellophane to do this experiment that the light can pass through it easily and the plants can absorb the energy from the sunlight. I can’t put the beans in the room where has the air conditioner because the air conditioner will dry the water.
 * Discussion:**

· Light quality refers to the color (wavelength) of light. Sunlight supplies the complete range of wavelengths and can be broken up by a prism into bands of red, orange, yellow, green, blue, indigo, and violet. Blue and red light, which plants absorb, have the greatest effect on plant growth. Blue light is responsible primarily for vegetative (leaf) growth. Red light, when combined with blue light, encourages flowering. Plants look green to us because they reflect, rather than absorb, green light.
 * Concepts:**

·  Photosynthesis is the synthesis of sugar from light, carbon dioxide and water, with oxygen as a waste product. It is arguably the most important biochemical pathway known; nearly all life depends on it. It is an extremely complex process, comprised of many coordinated biochemical reactions. It occurs in higher plants, algae, some bacteria, and some protists, organisms collectively referred to as photoautotrophs. Photosynthesis uses the energy of light to make the sugar, glucose. A simple general equation for photosynthesis follows. carbon dioxide + water + light energy → glucose + oxygen + water Photosynthesis occurs in two stages. In the first phase **light-dependent reactions** or **photosynthetic reactions** (also called the Light reactions) capture the energy of light and use it to make high-energy molecules. During the second phase, the **light-independent reactions** (also called the Calvin-Benson Cycle, and formerly known as the Dark Reactions) use the high-energy molecules to capture carbon dioxide (CO2) and make the precursors of glucose. Photosynthesis may simply be defined as the conversion of light energy into chemical energy by living organisms. It is affected by its surroundings and the rate of photosynthesis is affected by the concentration of carbon dioxide, light intensity and the temperature.
 * 6 CO2 + 12 H2O + photons → C6H12O6 + 6 O2 + 6 H2O**


 * Scientific Terminology:**

·  Photosynthesis: A process which takes place in presence of sunlight. It is a chemical process. In this process oxygen is released as a by product and also carbon dioxide is absorbed by the plants. It occurs in plants due to presence of a pigment called chlorophyll. It occurs in chlorophyll containing plants only.

· Light-Dependent Reaction: The Light-Dependent reactions pro duce oxygen gas and convert ADP and NADP+ into the energy carriers ATP and NADPH.

· Chlorophyll: Any of a group of related green pigments found in photosynthetic cells that converts light energy into ATP and other forms of energy needed for biochemical processes; it is found in green plants, brown and red algae, and certain aerobic and.

Molecular formula C55H72O5N4Mg C55H70O6N4Mg C35H30O5N4Mg C35H28O5N4Mg C54H70O6N4Mg C3 group -CH=CH2 -CH=CH2 -CH=CH2 -CH=CH2 -CHO C7 group -CH3 -CHO -CH3 -CH3 -CH3 C8 group -CH2CH3 -CH2CH3 -CH2CH3 -CH=CH2 -CH2CH3 C17 group -CH2CH2COO-Phytyl -CH2CH2COO-Phytyl -CH=CHCOOH -CH=CHCOOH -CH2CH2COO-Phytyl C17-C18 bond Single Single Double Double Single Occurrence Universal Mostly plants Various algae Various algae cyanobacteria · Wavelength: The distance between crests of a wave. The wavelength determines the nature of the various forms of radiant energy that comprise the electromagnetic spectrum. For electromagnetic waves, the wavelength in meters is computed by the speed of light divided by frequency (300,000,000/Hz). The wavelengths of light that humans can see range from approximately 400 nm to 750 nm.
 * Chlorophyll //a//**
 * Chlorophyll //b//**
 * Chlorophyll //c1//**
 * Chlorophyll //c2//**
 * Chlorophyll //d//**
 * Chlorophyll //c1//**
 * Chlorophyll //c2//**
 * Chlorophyll //d//**
 * Chlorophyll //d//**
 * Chlorophyll //d//**

· Miller KR, Levine JS. //Biology.// Upper Saddle River, New Jersey: Prentice Hall; 2006: 210 · [|http://www.answers.com/chlorophyll%20] · [|http://www.answers.com/Wavelength%20] · http://www.answers.com/Photosynthesis · http://answers.yahoo.com/question/index;_ylt=AtYdma99SNl5lMSMkNnV80AjzKIX?qid=20070219120846AATNwAM
 * References:**