Lab Exam 3 Review – Photosynthesis, Cellular Respiration, Chromatography, and Cell Cycle

Q16. What lab and for what did we use this piece of lab equipment?

Background

Topic: Laboratory Equipment in Cellular Respiration Experiments

This question is testing your ability to recognize laboratory equipment and recall its specific use in a biology experiment, particularly those related to measuring gas production or consumption during metabolic processes.

Key Terms and Concepts:

• CO2 Gas Sensor: A device used to measure the concentration of carbon dioxide gas in a closed system.

• Cellular Respiration Lab: An experiment where the rate of cellular respiration is measured, often by monitoring CO2 production.

• Fermentation Lab: An experiment where gas production (CO2) is measured as yeast or other organisms ferment sugars.

Step-by-Step Guidance

1. Observe the image and identify the equipment as a CO2 gas sensor, commonly used in biology labs.

2. Recall which experiments in your lab course involved measuring carbon dioxide gas. Think about labs where you studied cellular respiration or fermentation.

3. Consider the purpose of using a CO2 sensor: it is typically used to detect and quantify the amount of CO2 produced or consumed during metabolic processes.

4. Review your lab notes to match this equipment with the specific experiment (e.g., measuring CO2 production by germinating seeds or yeast during fermentation).

Try solving on your own before revealing the answer!

Final Answer:

This piece of lab equipment is a CO2 gas sensor. It was used in the cellular respiration lab to measure the amount of carbon dioxide produced by germinating seeds or yeast during fermentation. By monitoring CO2 levels, you could determine the rate of respiration or fermentation in your samples.