Biology Lab Report Essay

The protein molecules in many foods provide the amino acid building blocks required by our own cells to produce new proteins. To determine whether a sample contains protein, a reagent called Biuret solution is used. Biuret solution contains copper ions. However, the chemical state of the copper ions in Biuret solution causes them to form a chemical complex with the peptide bonds between amino acids (when present), changing the color of the solution. Biuret solution is normally blue, but changes to pink when short peptides are present and to violet when long polypeptides are present.

Please answer these questions then place them in the drop box for this lab. Use Microsoft word if possible.

The purpose of the lab was to determine the ratio of air to acetylene results in complete combustion of acetylene gas. The balanced chemical equation for this experiment was C2H2(g) + O2(g) --> CO2(g)+ H2O(l). Complete combustion is the reaction of an element or compound with oxygen to produce the most common oxides and energy. Complete combustion occurs when the fuel and oxygen combine in exact proportions to completely burn the fuel, which leaves a clean test tube. Incomplete combustion is the reaction of an element or compound with oxygen to produce some oxides with less oxygen than the most common oxides. Incomplete combustion occurs when there is not enough oxygen to react

3. Experiment: Use the Gizmo to find the carrying capacity with Ample, Moderate, and Little land. List the carrying capacities below.

3. State the name and structure of the functional group for each type of biologically

1. Describe the function of the following pieces of safety equipment and how each might be used: (10 points)

Cellular respiration: C6H12O6  +  6O2 →  6CO2  +  6 H2O  +  36 or 38 ATP

|EMB Agar | |Distinguishes bacteria that ferment |Dark blue colonies with|E. coli and P. |

groups. It was conducted to further the research in choice overload and paralysis of the mind.

Table 1 Concentration of protein, DNA, and ratio of the two in heart, kidney and liver of bos taurus. Average standard deviation of protein concentration is also shown.

Hydrolysis of starch for fungal amylase Aspergillus Oryzae and bacterial amylase Bacillus Licheniformis at different temperatures.

Lab Manual    Introductory Biology (Version 1.4)    © 2010 eScience Labs, LLC  All rights reserved  www.esciencelabs.com • 888.375.5487    2  Table of Contents:    Introduction:          Lab 1:   The Scientific Method  Lab 2:   Writing a Lab Report  Lab 3:  Data Measurement  Lab 4:  Introduction to the Microscope    Biological Processes:            Lab 5:   The Chemistry of Life 

4. Energy transfers are not 100% efficient – why? Cant capture all of the energy supplied by one source

“Evolution Canyon” consists of two slopes in Israel that are close in proximity, but have a huge difference in environment. This makes the slopes a good model system for exploring evolution, especially because they’re so close to one another. The South Facing Side (SFS) receives more sunlight than the North Facing Side (NFS). This extreme sun exposure causes the South slope to have drought and arid conditions whereas the North side has more temperate conditions and is shady and humid. The model, Sordaria fimicola, reproduces through the process of Meiosis and their chromosomes cross over in Prophase I (Stern). S. fimicola have different crossover frequencies between the slopes

Most CNC milling machines are computer controlled vertical mills with the ability to move the spindle vertically along the Z-axis. This extra degree of freedom permits their use in die sinking, engraving applications, and