Lab 2 Intro to Biology

Your Full Name:

UMUC Biology 102/103

Lab 2: The Chemistry of Life

INSTRUCTIONS:

On your own and without assistance, complete this Lab 2 Answer Sheet electronically and submit it via the Assignments Folder by the date listed in the Course Schedule (under Syllabus).

To conduct your laboratory exercises, use the Laboratory Manual located under Course Content. Read the introduction and the directions for each exercise/experiment carefully before completing the exercises/experiments and answering the questions.

Save your Lab 2 Answer Sheet in the following format: LastName_Lab2 (e.g., Smith_Lab2).

You should submit your document as a Word (.doc or .docx) or Rich Text Format (.rtf) file for best compatibility.

Pre-Lab Questions

1. Nitrogen fixation is a natural process by which inert or unreactive forms of nitrogen are transformed into usable nitrogen. Why is this process important to life?

2. Given when you have learned about the hydrogen bonding shared between nucleic acids in DNA, which pair is more stable under increasing heat: adenine and thymine, or cytosine and guanine? Explain why.

3. Which of the following is not an organic molecule; Methane (CH4), Fructose (C6H12O6), Ethanol (C6H12O), or Ammonia (NH3)? How do you know?

Experiment 1: Testing for Proteins

Data Tables and Post-Lab Assessment

Table 1: A Priori Predictions

|Table 1: A Priori Predictions |

|Sample |Will There be |Initial Color |Final Color |

| |Protein Present? | | |

|1 - Albumin Solution |  |  |  |

|2 -...