The purpose of lab number thirteen was to examine the response of the daphnia to a chemical stimulant. Also examined was how human resting heart rates differed from the daphnia’s. Stimulants are any substances that raise the levels of activity in the body. Stimulants could be a number of things such as physical or chemical. Physical stimulus usually deal with something that affects the five senses such as sight‚ hearing these could be attributed to loud noises or too much light going into your eye
Premium Drug addiction Addiction Heroin
Margaret E. Vorndam‚ M.S. Version 42-0038-00-01 Lab Report Assistant This document is not meant to be a substitute for a formal laboratory report. The Lab Report Assistant is simply a summary of the experiment’s questions‚ diagrams if needed‚ and data tables that should be addressed in a formal lab report. The intent is to facilitate students’ writing of lab reports by providing this information in an editable
Premium Buffer solution Cell wall PH
Abby Goldschmidt Honors Biology 2° Mrs. Gempel September 3‚ 2015 Daphnia Lab Results Paper Abstract The goal of the study was to observe the effects of multiple chemicals on a Daphnia magna’s heart-rate compared to a control (pond water). The different chemicals were caffeine and alcohol. The heart-rate was the main variable in this experiment. The Daphnia’s heart-rate was observed for 15 seconds and then multiplied by 4 to show its heart-rate in one minute. This was repeated 4 times for each
Premium Heart rate
Study Guide to Help with Laboratory Exam 1 Microbiology 1214 A partial study guide only. Not intended to replace the review sheets or the “Know the following” sections on your labs. These slides are not presented in any particular order. Name this Procedure Identify the two types of bacteria present by shape and gram stain. In a gram stain what is the primary stain? The mordant? The counterstain? How does this differ from a simple stain? Identify the shape and gram stain of the bacteria present
Premium Staining Gram staining Bacteria
Shiraev and Levy (2017) defined culture as “a set of attitudes‚ behaviors‚ and symbols shared by a group of people and usually passed down from one generation to the next (p.4)‚ which extended my own understanding of culture beyond that of a familial background. I simply thought that‚ culturally wise‚ I was just a German/American; my mom was a first generation from German and my father was a many generation from who knows where. I have fondness for both the German flag‚ as well as the American flag
Premium United States The Culture German language
Are we limited in knowledge‚ in imagination‚ and in understanding by the culture we grow up in? In other words‚ are we ethnocentric‚ and if so is it a bad thing? To answer that‚ one must understand what ethnocentrism is. According to Macionis (2004)‚ ethnocentrism is "the practice of judging another culture by the standards of one’s own culture". We are not born with culture; culture is a socially learned behavior‚ or set of values that a given groups holds as a norm and are considered to be
Premium Sociology Culture The Culture
labels of all chemicals before use. Abide by specific warnings and directions. 3. Collect all materials needed for a procedure before proceeding. 4. Perform reactions under the hood when directed. Chemicals may be weighed and prepared at balance or lab tables‚ but tests should be carried out under the hood. 5.Acids and caustic chemicals are stored in the hood. Please do not take these chemicals from the hood. Procedure: PART 1: Metathetical reactions Precipitation reactions
Premium Chlorine Chemical reaction Sodium
David Kennedy Bio 210 Lab Report 1 10/11/13 Microbial Growth Background Information: This lab was conducted in order to understand basic differences among differential and selective media‚ while recognizing how each media is used to isolate and identify microorganisms (Wistreich‚ 2003). The first microorganism analyzed was Staphylococcus epidermidis. This organism is gram-positive‚ single celled‚ arranged in grape-like clusters‚ and cocci in shape (Bukhari‚ 2004). S. epidermidis is approximately
Premium Bacteria Growth medium Escherichia coli
aspirin ages it breaks down and returns to the main chemicals that made the reaction. (Sources used- aspirin worksheet and http://en.wikipedia.org/wiki/Salicylate http://en.wikipedia.org/wiki/Aspirin) Synthesis (procedure)- for the procedure I prepared a boiling bath using a hot plate‚ and filled a 400ml beaker with tap water. Then I got a 125ml Erlenmeyer flask and put in 2.00 grams of Salicylic acid using a scale. For the third step I added 5ml of Acetic Anhydride using a graduated cylinder.
Free Aspirin Acetic acid Salicylic acid
AP BIOLOGY Lab 5 Cellular Respiration Objective: To calculate the rate of CR from the data. To then relate gas production to respiration rate. Then test the rate of CR in germinating versus non-germinating seeds in a controlled experiment and then test the effect of temperature on the rate of CR in the germinating versus non-germinated seeds in a controlled experiment. Analysis: 1. The CR is higher in the germinating peas in the cold water rather than in the beads or non-germinating peas
Premium Cellular respiration Oxygen Carbon dioxide