Biology 203 Final Exam Study Guide All
Solved Correct Guaranteed Pass.
Describe the steps of the scientific method - Answer -Observation: Use all 5 senses to see whats going
on.
-Hypothesis: Make an educated guess about how something works.
-Prediction: Assume hypothesis is correct and predict the results. If... then...
-Experiment: Test your prediction
-Analysis and conclusion: Gather results and evaluate hypothesis
Explain the parts of a scientific paper - Answer -Title
-Abstract: 1 paragraph on what you did, why it's important, and results.
-Introduction: Inform the reader about what your research is, why it's important, and reference others
work.
-Methods: Concise description of what you did, describe what statistics you used.
-Results: Data/stats, differences. Don't analyze data.
-Discussion: Analyze data with meanings, conclusion.
-References cited
Explain the dependent, independent, and control variables - Answer Dependent Variable- What's
changing
Independent Variable- What you're measuring
Control Variable- What doesn't change
What are Carbohydrates? What are the four types. - Answer Carbohydrate: simple sugar or a larger
molecule composed of multiple sugar units.
-Monosaccharides
-Disaccharides
-Polysaccharides
-Starch
, Monosaccharides - Answer Single sugar molecule.
Ex: ribose, deoxyribose, fructose, and glucose.
Disaccharides - Answer Two joined monosaccharides.
Ex: sucrose, maltose, and lactose.
Polysaccharides - Answer More than two monosaccharides joined together.
Ex: glucose
Starch - Answer A key glucose-storing polysaccharide in plants, an important food molecule for
humans.
Proteins - Answer A diverse group of macromolecules. Many are structural components of muscle,
bone, hair, fingernails, and toenails, among other tissues. All proteins are chains of amino acids.
Benedict's Solution - Answer Tests for carbohydrates. Small carbohydrate molecules react upon heating
with the copper-containing compound.
Lugol's Solution (IKI) - Answer Tests for carbohydrates. Dilute solution of potassium Iodine reacts with
starch and forms deep blue/black.
Biuret reagent - Answer Tests for proteins. The greater the number of peptide bonds, the more intense
the color reaction with Biuret.
Sudan IV - Answer Tests for lipids. Drop solution on a piece of uncoated paper, if it leave behind oil then
it contains a lipid.
- Answer
Enzyme - Answer Proteins that function as biological catalysts. Agents that speed up cellular reactions.
Solved Correct Guaranteed Pass.
Describe the steps of the scientific method - Answer -Observation: Use all 5 senses to see whats going
on.
-Hypothesis: Make an educated guess about how something works.
-Prediction: Assume hypothesis is correct and predict the results. If... then...
-Experiment: Test your prediction
-Analysis and conclusion: Gather results and evaluate hypothesis
Explain the parts of a scientific paper - Answer -Title
-Abstract: 1 paragraph on what you did, why it's important, and results.
-Introduction: Inform the reader about what your research is, why it's important, and reference others
work.
-Methods: Concise description of what you did, describe what statistics you used.
-Results: Data/stats, differences. Don't analyze data.
-Discussion: Analyze data with meanings, conclusion.
-References cited
Explain the dependent, independent, and control variables - Answer Dependent Variable- What's
changing
Independent Variable- What you're measuring
Control Variable- What doesn't change
What are Carbohydrates? What are the four types. - Answer Carbohydrate: simple sugar or a larger
molecule composed of multiple sugar units.
-Monosaccharides
-Disaccharides
-Polysaccharides
-Starch
, Monosaccharides - Answer Single sugar molecule.
Ex: ribose, deoxyribose, fructose, and glucose.
Disaccharides - Answer Two joined monosaccharides.
Ex: sucrose, maltose, and lactose.
Polysaccharides - Answer More than two monosaccharides joined together.
Ex: glucose
Starch - Answer A key glucose-storing polysaccharide in plants, an important food molecule for
humans.
Proteins - Answer A diverse group of macromolecules. Many are structural components of muscle,
bone, hair, fingernails, and toenails, among other tissues. All proteins are chains of amino acids.
Benedict's Solution - Answer Tests for carbohydrates. Small carbohydrate molecules react upon heating
with the copper-containing compound.
Lugol's Solution (IKI) - Answer Tests for carbohydrates. Dilute solution of potassium Iodine reacts with
starch and forms deep blue/black.
Biuret reagent - Answer Tests for proteins. The greater the number of peptide bonds, the more intense
the color reaction with Biuret.
Sudan IV - Answer Tests for lipids. Drop solution on a piece of uncoated paper, if it leave behind oil then
it contains a lipid.
- Answer
Enzyme - Answer Proteins that function as biological catalysts. Agents that speed up cellular reactions.
