affect yeast cells culture when added. The observation of the two cultures along with the yield of yeast cell reproduction between the two cultures was the sole purpose of the experiment; culture-A (- antibiotic) and culture-B (+ antibiotic). Our hypothesis stated whether antibiotic effects yeast cells cultures. This theory was tested by having a chamber with quadrants that contain the culture‚ a hemacytometer‚ was used to carry out this experiment. After the data was collected from using the hemacytometer
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past (Jackson and Baker‚ 1986). The purpose of this study was to determine the contributors to the sit-and-reach flexibility test. METHODS The subjects in this study were 11 female and 10 male college aged students that appeared to be healthy and active. Four methods were used to obtain the flexibility measurement of the test subjects. A goniometer was used to find the flexibility measurements of the subjects for the shoulder flexion‚ shoulder extension‚ hip flexion‚ and hip extension tests. Using
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The findings of this experiment indicate the hypothesis to be partially correct and partially incorrect. As was predicted‚ the experimental results did support the concept that as the carbon number increased so would the energy level. When comparing the energy levels of other isomers to straight chain alcohols‚ the graph shows the first part of the trend line for the other isomers to have a higher energy‚ while the less steep trend gradient means this switches over between 3 and 4 carbon‚ indicating
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Cellular transport of taurine is sodium dependant. The ratio of sodium molecules to taurine molecule transported varies in different tissues ranging from 3:1 to 1:1.Transport of taurine in brain require at least 3 Na+ molecules‚ transport of hypotaurine require 2 Na+ molecules. Transport of taurine takes place in both neurons and glial cells. The transport in glial cells is greater than neurons and astrocytes. Deficiency of taurine stimulates retinal transport of taurine. The sites
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Instructor Biology 1111 4-5 Lab Topic 4: Microscopy Elodea Cells at ___X Elodea Cells at ___X Report Sheet—Lab Topic 4 1. Draw and label each of the organisms available. Cheek Cells at ___X Cheek Cells at ___X Name _______________________________ Date_____________ Instructor ___________________________ Section___________ _________________________ 4-6 Lab Topic 4: Microscopy 2. Fill in the following table: Compound Microscope Dissecting Microscope Types of Light Available Powers
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Submit your completed lab report to the Lab: Photosynthesis Lab assignment link for grading. For information on how this assignment will be graded‚ please visit the Course Information sectionChlorophyll and Accessory Pigments A pigment is any substance that absorbs light. The color we see comes from the wavelengths of light that reflect. Chlorophyll‚ the green pigment common to all photosynthetic cells‚ absorbs all wavelengths of visible light except green. The green reflects back to our eyes
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The results of the experiment supported that invertase is most active at a pH level of 5‚ which supports the hypothesis that lower acidic pH values similar to the ones found in the stomach‚ will have the largest increase in invertase activity. A semilinear decrease in rate was found as the pH level was lowered below 5‚ and a substantial decrease found in any environments with a pH higher than 5. The stomach average pH level‚ being between 1.5-3.5‚ directly correlates to the most efficient pH levels
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Page 2 Contents………………………………………………………………………… Page 3 Introduction Rationale………………………………………………………………… ……….. Page 4 Background Information……………………………………………………. Page 4 – 6 Aim…………………………………………………………………………………….. Page 6 Hypothesis…………………………………………………………………………. Page 6 Methods Materials……………………………………………………………………………. Page 6 Procedure…………………………………………………………………………… Page 7 Fair Experiment…………………………………………………………………… Page 7 – 8 Risk……………………………………………………………………………………… Page 8 Results
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concentration and volume of liver extract (source of catalase) used was kept constant at 10ml per solution. This factor was kept constant‚ as the concentration of the enzyme affects the rate of reaction; higher enzyme concentrations increase the amount of active sites available for the substrate to bind to‚ thus increasing the reaction rate. The
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Cited: "Lab #4 - Photosynthesis." Laboratory Exercises for Biology 101. Ed. Barbara Stegenga. N.p.: n.p.‚ n.d. 24-28. Print.
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