Analytical Methods for Biology Quiz

What is the purpose of chromatographic techniques in biological analysis?

• To measure the temperature of biological samples

• To count the number of cells in a biological sample

• To create new biological compounds

• To separate and analyze complex mixtures of biological compounds

Which type of chromatography separates compounds based on their size and charge?

• Gas chromatography

• Thin layer chromatography

• Ion exchange chromatography

• Affinity chromatography

What is the process of titration used for in analytical methods for biology?

• Identifying the genetic makeup of a sample

• Determining the concentration of a specific substance in a solution

• Determining the pH level of a solution

• Measuring the weight of an organism

In stoichiometry, what is the relationship between the quantities of reactants and products in a chemical reaction?

• It is determined by the balanced chemical equation.

• It is determined by the phase of the reactants.

• It is determined by the temperature of the reaction.

• It is determined by the color of the reactants.

How is stoichiometry applied in biological analysis?

• By determining the quantities of reactants and products in chemical reactions

• By studying the structure and function of cells in the human body

• By studying the behavior of organisms in their natural environment

• By analyzing the genetic makeup of living organisms

What are the key components of an analytical method in biology?

• Watercolor painting, sketching, sculpting, and pottery

• Sample preparation, separation techniques, detection methods, and data analysis

• Cooking, baking, grilling, and frying

• Grammar, vocabulary, reading, and writing

What are the different types of chromatographic techniques used in biological analysis?

• Thermal chromatography

• Some of the different types of chromatographic techniques used in biological analysis include gas chromatography, liquid chromatography, ion exchange chromatography, affinity chromatography, and size exclusion chromatography.

• Electrostatic chromatography

• Magnetic chromatography

What is the role of a stationary phase in chromatography?

• Preventing the sample from interacting with the column

• Causing the sample components to mix together

• Separating the components of the sample based on their interactions

• Acting as a mobile phase to move the sample through the column

How is titration used to determine the concentration of a substance in a biological sample?

• By reacting the biological sample with a solution of known concentration and measuring the volume of the solution required to react completely.

• By using a microscope to count the number of cells in the biological sample

• By heating the biological sample and measuring the change in color

• By mixing the biological sample with water and observing the change in viscosity

Why is it important to understand analytical methods in biology for research and practical applications?

• To make the research more confusing and difficult

• To accurately analyze biological data and draw meaningful conclusions.

• To draw meaningless conclusions

• To waste time and resources