Investigation 1 – PreLab
All known living things are made of cells. Studying cells helps us understand how living things function.
Pathologists look at kidney cells, for example, to determine if a patient needs a transplant.
This Investigation is designed to help you to answer the following Focus Question:
- Can you identify the type of organism a cell comes from through observation?
Note: This question is located in your SDs at the beginning and end of the Investigation.
As a class, read the Background(s) in the Investigation. When finished, discuss the following concept as a class:
- The total magnification used to view a slide can be calculated by multiplying the power of the microscope’s eyepiece (10x) and the power of the objective used to view the specimen (either 4x, 10x, or 40x).
LEARN THE LabLearner LINGO
- There are no Key Terms introduced in Investigation 1.
Note: Additional words may be bolded within the Background(s). These words are not Key Terms and are strictly emphasized for exposure at this time.
SET FOR SUCCESS
- Complete the Recall section in your SDR.
- Do I know what cells are?
- Do I know why cells are important?
- What do I expect to see if I look at a cell under the microscope?”
- Cells are the smallest structure of living things that can perform the functions necessary for life. Living things are made of cells. Cells come from other living cells.
Note: There is some debate as to whether viruses, which consist of RNA or DNA in a protein capsid or membrane envelope, are classified as living or non-living organisms.
- Cells that are organized together form tissues. Tissues come together to form organs.
- Play the video below. Remember to follow along with your SDR and make any notes that you think might be helpful in the lab.
- After the video, divide into your lab groups to discuss strategy for the lab. For example, you may assign certain group members to perform specific functions during the lab.
Note: The purpose of the video is to allow you to anticipate the laboratory experience you will soon encounter. You should leave this PreLab session with a firm idea of what to expect and how to perform in the lab.
Note: Homework is posted below the video.
You should review the Investigation and video in preparation for the Lab.