Design Experiment: Enzyme Inhibitors. Research question: What is the effect of adding lead nitrate solution on the activity of amylase enzyme? Aim: To test the effect of adding nitrate solution on the activity of amylase. Background Information: Inhibitors are molecules which repress or prevent another molecule from engaging in a reaction. They are substances that attach themselves onto an enzyme and reduce or prevent the enzyme’s ability to catalyse reactions. Competitive Inhibitors are inhibitors
Premium Enzyme Enzyme inhibitor
3. Why don’t the terms depolarization and action potential mean the same thing? The terms depolarization and action potential differ because are excitable cells that communicate by transmitting electrical impulses that are capable of producing rapid electrical signals and depolarization in the interior surface of the membrane which becomes less negative and the exterior surface becomes less positive. Additionally‚ when depolarization reaches a certain threshold‚ an action potential is initiated
Premium Action potential Neuron Nervous system
gerati Laboratory report Vapour-Compression Refrigeration Experiment Thermodynamics Date of experiment: 26 June 2012 Group D2: Introduction The laboratory session for refrigeration system was performed in order to investigate the main concepts of the vapour-compression refrigeration cycle. Simple refrigeration system studied in the laboratory is a prototype for a variety of engineering applications utilized in industrial‚ domestic and scientific purposes. The detailed goals include the study
Premium
Osmosis Lab Report The essential focus of the experiment was to acquire data for the mass change resulting from osmosis in order to determine the carbohydrate solution of the carrot cells. The carrots were a vegetable used within the experiment with a carbohydrate solution around .5 M. The hypothesis is if there are carrots in different carbohydrate solutions then there will be a percent change in mass. The carrots have large vacuoles that hold water‚ this allows the mass to increase when the hypertonic
Premium
to subdue this widespread virus‚ “a research group led by Saul Krugman and Joan P. Giles of the New York University School of Medicine initiated a long-range study of viral hepatitis at Willowbrook” (Munson‚38). This study‚ which will soon be discussed in further detail‚ consisted of intentionally infecting Willowbrook students with hepatitis‚ and was thus a very ethically controversial issue and continues to be so today. I will be portraying the facts of this study and discussing why I believe it
Premium Infection Hepatitis Immune system
CHEE MAO HAN GROUP : GROUP 3 EXPERIMENT NO. : 2 EXPERIMENT TITLE: DETERMINATION OF THE ACTIVATION ENERGU FOR THE REACTION OF BROMIDE AND BROMATE IONS IN ACID SOLUTION DATE : 14 FEB 2012 (TUESDAY) LECTURER : DR.HA SIE TIONG EXPERIMENT 2 Title Of The Experiment: Determination Of The Activation Energy For The Reaction
Premium Chemical reaction Chemistry
Hawthorne Experiment. Advantages: During the experiment the performance of the group has increased (Not because of improving conditions‚ but because of the communication and collaboration) Disadvantages: there were personnel changes‚ that is the workers hostile watching the situation changed for those who would like to work in such conditions (that is attended only those workers who are more willing‚ not all workers) Conclusion: This experiment showed that workers are willing to actively
Premium The Structure of Scientific Revolutions Paradigm shift Science
seguine) Stem Extract as a Rodenticide for Black Rats (Rattus rattus) PROPONENTS: Dolino‚ Alma Gubalane‚ Delsan Miquiabas‚ Cheryl Telen‚ Nikol IV- Einstein Mrs. Lalaine Biboso Research II Adviser ABSTRACT Black rats are pests and are dangerous to humans in several ways. These species are also famous for its role in spreading the dreaded bubonic plague that took billions of lives in the Middle Ages. To control them‚ chemical rodenticides are used but these chemicals often destroy our environment
Premium Rat Black Death
If the North Were the South‚ Same Thing. Ricardo Arjona is one of the most renowned Latin American singers. He is characterized for his socially conscious and heartfelt folk ballads and rock tunes. In addition‚ he also plays a variety of styles that combine traditional South American folk music with rock‚ hip-hop‚ and classical music‚ Arjona sings about subjects ranging from faded love to social inequities. In 1996‚ Arjona wrote the song Si el Norte Fuera el Sur (If the North were the South)‚
Premium North America South America Latin America
Experiment 13B: Isopentyl Acetate (Banana Oil) Semimicroscale Procedure Taylor Levin 5.28.14 Chemistry 352- Organic Chemistry Lab Summer 2014 Purpose: To prepare isopentyl acetate (banana oil)‚ an ester‚ from isopentyl alcohol and acetic acid through the Fischer Esterification reaction. Reactions: acetic acid + isopentyl alcohol isopentyl acetate + water C2H4O2 + C5H120 CH3COOCH2CH2CH(CH3)2 + H20 Procedure: A reflux condenser was assembled
Premium Acetic acid Ester Distillation