Effects of Wavelength and Light Intensity on Photosynthetic Activity ABSTRACT The photosynthetic process of eukaryotes revolves around chlorophyll‚ the substance that give plants their green color. Plants convert light energy into chemical energy by means of photosynthesis. This experiment tests the reaction rates of a chloroplast suspension against variables of wavelengths and light intensity. Both a control and an experimental cuvette were exposed to a range of 450 to 750nm of light and varying
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The evolutionary relationship between vitamin D‚ folate‚ and sunshine all relates to skin pigment. "Melanin‚ which is responsible for skin pigment‚ can be advantageous or nonadventageous. That is‚ because melanin provides protections from solar radiation‚ substantial amounts of this pigment can inhibit vitamin D production." (Our Origins p. 139). Therefore‚ the more melanin an individual has‚ the more protection from the sun he has. So‚ at
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Cave paintings were the first forms of art. These paintings first appeared around 31‚000 years ago. The oldest one known is in the El Castillo cave in Spain. This is not a very well-known cave‚ even though I think it should be. The Chauvet‚ Altamira‚ and Lascaux are the most common caves. Cave art is very interesting and has created multiple theories. The first theory of the purpose of this new outburst was just a way to be decorative. I don’t think that is the sole reason for
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Jiaqi Li Room: 8B/327 There are many different types of soda with different color. Is soda really made of natural color from fruit? Is that safe to drink? Will that kill you? So there is science behind this. The colors of the soda is made of pigments. The fruit color will make the color of the soda brighter. Column Chromatography is a new technical method to separate the chemical inside the mixture. I can use this method to separate the dyes of the grape soda. The chemical mixtures in the grape
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CHAPTER I Introduction Over 70% of the planet is covered by water. (75% of that is salt water‚ only leaving a 25% as fresh water which can be used for consumption. 70% of the fresh water of our planet is still frozen in the icecaps of Antarctica and Greenland; while the remaining percentage is present as soil moisture‚ or it lies underground as groundwater. Main Problem How can the seawater be utilized for the consumption of different organisms? Sub problems How will the results of the said
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Column Chromatography of Plant Pigments Jaybee Balilea‚ Sharmaine Baysic‚ Maria Anjelette Patricia Belen 3Bio-7‚ Department of Biological Sciences‚ University of Santo Tomas‚ Manila‚ Philippines Abstract Column Chromatography is a form of solid-liquid adsorption chromatography and depends on the essential principles as does in thin layer chromatography. It was used in this experiment in separating and analyzing the different components of Capsicum frutescens (siling labuyo) with the use
Free Chromatography Thin layer chromatography Silica gel
which results in little or no production of the pigment melanin. The disorder is not an infectious disease and cannot be transmitted through contact‚ blood transfusions‚ or other means. Albinism is usually‚ but not always‚ apparent in a person’s skin‚ hair and eyes. The most recognizable form (called oculocutaneous albinism or OCA)‚ results in milky white skin‚ white hair and white or pink irises. There are various forms of albinism and the amount of pigment present varies with each type. Some patients
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and money on buying cosmetic products‚ like makeup. They also improve the looks on women who don’t necessarily like the way they look. Permanent makeup is exactly what it sounds like. Permanent cosmetics procedures are considered permanent because pigment is tattooed into the upper reticular part of the dermal layer of the skin and cannot be washed off. There are specialized techniques used for permanent cosmetics. They
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with a heterozygous taster. T=taster t=non-taster TT x Tt T T t G: 2/4 TT 2/4 Tt 1:1 T TT TT Tt Tt P: 4/4 Tasters 1:0 Albinism – lack of pigment – is caused by a recessive allele. Cross an albino with a heterozygous‚ normally pigmented person (remember to choose your letters using the letter of the dominant allele) N=normal pigment n=albino nn x Nn n N n n Nn Nn nn nn G: 2/4 Nn‚ 2/4 nn 1:1 P: 2/4 Normal 2/4 albino 1:1 Cross a homozygous roller (tongue‚ of course) with a
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Fish are trichromatic which means they can see all three of the most important primary colors which are Red‚ Blue and Green which can make many millions of shades of colors. Guppies which are a certain type of small fish mostly Found in trinidad and Barbados where they often do something such as penny pecking which is pecking at an object floating atop of the water as if it is a food and they make the fish peck at the object more depending on its color. Guppies color perception is based on the rods
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