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?
The useable nitrogen created, is extremely important since it is used to form DNA, enzymes, and other biological processes. Nitrogen fixation is also important because when it is inert, it is useless for organisms.

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.

Adenine and thymine are more stable because, the additional carbon bonds make their nucleotides more stable.
3. Which of the following is not an …show more content…
Write a statement to explain the molecular composition of the unknown solution based on the results obtained during testing with each reagent.
From what I Understand it is a solution that contains no proteins: although, it did contains reducing sugars because I observed Light green from the Benedict’s Solution.
2. What can you conclude about the molecular make-up of potatoes and onions based on the test you performed? Why might these foods contain these substance(s)?
They both came back as positive to containing reducing sugars. Since they Plants, they typically create and store sugars within their cells of various types.

3. What results would you expect if you tested ribose, a monosaccharide, with Benedict’s solution? Biuret solution?
Ribose is a carbohydrate, meaning that Biuret Solution should come back negative, since it contains no proteins. Benedict’s solution would come back positive, since carbohydrates are a form of sugar.
Experiment 3: What Household Substances are Acidic or Basic?
Data Tables and Post-Lab Assessment
Table 4: pH Values of Common Household