A pH meter is an electronic instrument used to measure the pH (acidity or alkalinity) of a liquid (though special probes are sometimes used to measure the pH of semi-solid substances). A typical pH meter consists of a special measuring probe (a glass electrode) connected to an electronic meter that measures and displays the pH reading. The probe The pH probe measures pH as the activity of hydrogen ions surrounding a thin-walled glass bulb at its tip. The probe produces a small voltage (about 0
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The potato is a starchy‚ tuberous crop from the perennial Solanum tuberosum of the Solanaceae family (also known as the nightshades). The word may refer to the plant itself as well as the edible tuber. In the region of the Andes‚ there are some other closely related cultivated potato species. Potatoes were introduced outside the Andes region four centuries ago‚ and have become an integral part of much of the world’s cuisine. It is the world’s fourth-largest food crop‚ following rice‚ wheat and maize
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The effect of enzyme concentration‚ substrate concentration‚ pH‚ and temperature on the enzyme catalase. Introduction: Enzymes are biological catalysts; proteins and RNA. They are required for most biological reactions and they are highly specific. Each enzyme has an active site. The active site is the spot on the enzyme where a substrate fits in. Substrates binds with enzymes through the active site. Enzymes‚ being highly specific‚ only fit with one certain substrate. Enzymes and substrates
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Research Project: Potato The potato originated in the South American Andes‚ but its heartland of wild genetic diversity reaches from Venezuela‚ Colombia‚ Ecuador‚ Peru‚ Bolivia‚ Argentina‚ Chile‚ Uruguay‚ Paraguay‚ southern Brazil‚ northward into Central America‚ Mexico‚ and the southwestern United States. Potato was first cultivated between 3 and 7 thousand years ago‚ some scientists believe they may have grown wild in the region as long as 13‚000 years ago. Potato is the third most important
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Sidra Double Cola Vital Jucina Milk Ice Cream Soda Mango Juice Kulfa Orange Orange Juice Butter Scotch Lychee Apple Juice Coffee Raspberry Mango & Orange Strawberry Fresh Lime Chocolate Vino Competitors: Primary: Pepsi‚ Coca Cola‚ Rooh Afza‚ Jam E Shereen‚ Etc. Secondary: Frooto‚ Maza‚ Rani‚ Slice‚ Nestle‚ Etc. Pops Pods Soft drink‚ juice‚ milk Natural taste varieties Disposable Tastes varieties in milk
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CP2085 Effect of Temperature‚ Study and Measure of Enzymes Activity Abstract This experiment investigates the effect that temperature has on the rate of activity of enzyme β-galactosidase and also the rate of β-galactosidase activity in different concentration of substrate over time. Ο-nitrophenylgalactoside (ONPG) is used as a substrate for β-galactosidase. A spectrophotometer is used to detect the change in colour of the substrate. Results show that increase in temperature up to 50oC speeds
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Asparagus Delight Juicing Recipes Juice Recipe: 4 asparagus spears‚ 3 carrots and 2 celery ribs. Simple Asparagus Juicing Recipes - 6 asparagus spears‚ 3 celery ribs‚ handful of cilantro Pepper Beets Juice Recipe: 1/2 beet with green root‚ 3 carrots‚ 1/2 red bell pepper Beeting it with Cilantro Juice Recipe: 1/2 beet with green root‚ 3 carrots‚ handful of cilantro Sweet Beets Juice recipe: 1/2 beet with green root‚ 1 sweet potato‚ 2 apples Broccoli Sunrise Juice Recipe: 1 broccoli spear‚ 4 carrots
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| 5. | Experiment 2 | 6 | 6. | Observation | 7 | 7. | Result | 8 | 8. | Bibliography | 9 | OBJECTIVE The Objective of this project is to study the rates of fermentation of the following fruit or vegetable juices. 1. i. Apple juice 2. ii. Carrot juice 1 INTRODUCTION Fermentation is the slow decomposition of complex organic compound into simpler compounds by the action of enzymes. Enzymes are complex organic compounds‚ generally proteins. Examples of fermentation
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POTATO INTO BATTERY Abstract a.Purpose To lessen the consume of electric charge b. Procedure We insert copper and zinc electrodes in to the potato‚ close but not touching each other. We use Clip leads to connect our electrodes to the Multimeter to measure voltage between two electrodes or current passing through the multimeter. For this experiment we used a galvanized nail for our Zinc electrode. c. Result It did go well and the potato did give voltage to the equipment (clock) However‚ the
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MEASURING pH Date of Lab: 02/09/13 Date Report submitted: 02/26/13 Purpose of the experiment By doing this experiment‚ we were trying to learn how to measure a pH with a pH meter to determine whether a solution is weakly‚ moderately or strongly acidic or basic; but also to compare the different data founded to see how the addition of certain liquid to a solution may affect the pH of the initial solution. Materials We used: * Tap water‚ distilled water‚ Soda and milk as the main
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