Before you test your knowledge about cell types on Gizmo student Exploration, of course you should learn more about Cell types. There are many sites give information about Cell types. Now, you may also looking for Gizmo cell types answer key. For this case, we suggest you to read this entire article.
Overview – Gizmo: Cell Types
In the new gizmo Cell Types, the students are introduced to the diversity of cells which exist in nature, from bacteria and protists to specialized animal cells like neurons and red blood cells. The students are going to learn how to focus a microscope and how to apply special tests to signify if a sample is alive. The app of this Gizmo are endless, from explaining the characteristics of living things to identifying eukaryotic and prokaryotic cells, distinguishing unicellular and multicellular organisms and explaining the structure of animal, plant, and fungi cells.
Gizmo Student Exploration: Cell Types
In the Cell Types Gizmo, you are going to use a light microscope to compare different samples. On the landscape tab, please click on the Elodea leaf. Then, switch to the microscope tab to observe the sample because it will appear under the microscope.
- Please drag the coarse focus slider until the sample is focused well. After that, improve the focus with the Fine focus slider. What do you see?
- Choose the 400x magnification. If necessary, set the fine focus. Now, what do you see?
Question: What Are Differences And Similarities Between Cells From Different Organisms?
- Please read about each microscope part. Then, match the description to the part on the diagram
- Stage: This is platform where a slide is placed.
- Eye piece: Lens at the top of the microscope which the user looks though. This lens most magnifies a sample by 10x.
- Coarse focus knob: Large knob which moves the stage up and down to focus the sample.
- Fine focus knob: A small knob which moves the stage to refine the focus.
- Objective lens: A second lens which magnifies the sample. Usually, Microscopes have some objective lenses with different magnifications.
- Slide: A rectangular of glass upon which a sample is mounted to view under a microscope.
- With 40x selected, try to use the Coarse and Fine focus sliders to focus on the sample. After that, select 400x and focus on the sample using the Fine focus slider.
- Which Fine focus knob is easier to utilize at 40x?
- Turn on Show labels. What structures can you view in human skin cells?
- Utilizing the scale bar, how wide is a human skin cell?
- An organelle is a cell structure which performs a specific function. Please observe the samples under the highest magnification. Just click the Show labels checkbox to label the organelles. Try to list the organelles and approximate size of the cells in each sample.
- Try to click on the cow and observe E. coli under the highest magnification. Please notice the microscope magnification is larger for this organism, and notice the scale bar is smaller
- What is the size of E. coli?
- What organelles are present in E. coli?
- What organelle is missing from E. coli?
For your information, E. coli is an example of a bacteria. And bacteria are classified as prokaryotic cells as their DNA is not contained in a membrane-bound nucleus
- Please look at the Sand or Silt sample under the microscope
- Turn on Show labels. Does sand or silt have any internal structures?
- Do you think sand/silt is alive? Try to explain it!
Question: How Do A Cell’s Structures Relate To Its Function?
- Use the microscope to check the samples listed in the text below. For each sample, you have to estimate the cell size and also check off the organelles which are present. If there is no column for an organelle, then you have to list it in the Special structures column.
- Try to choose the human skin sample. On the Microscope tab, you have to select the 400x magnification, focus on the sample, and also turn on Show labels. Please click on the Nucleus label. If needed, set adjust the Stage sliders to view the full description
- What is the function of the nucleus?
- What is the function of the cytoplasm?
- What is the function of Cell membrane?
- Choose the human neuron sample. Please focus the cells at 400x and turn on Show labels
- Click on the axon label to read the description. What is its function?
- What is the function of a dendrite?
For your information, Neurons transmit messages in the form of electrical and chemical signals, via axons and dendrites, from one part of the body to another
- Choose to the human muscle sample. Then, observe the sample at 400x
- What do muscle cells have that other cell kinds do not?
- What is a striation and how does it assist muscle cells function?
- Choose the human blood sample. Then, observe at 400x. Please look under Show information on the right-hand side of the Gizmo.
- Mention the function of red blood cells!
- Mention the function of white blood cells!
- Try to compare the human and animal samples. For example, human and worm neurons, human and mouse skin, human and fly muscle or human and frog blood.
- Are there any main differences that you are able to see? Please explain it!
- What organelle do frog RBCs have that human RBCs do not?
For your information, most mammalian red blood cells do not have nucleus. This will allow the red blood cell to use all of its volume to transport oxygen.
- Describe how the skin cells, muscle cells, neurons, and blood cells you have observed relate to the functions of skin, muscle, nerve, and blood tissue.
Well, the text above is an explanation about Gizmo: Cell Types and questions you can answer. For those who are subscribers of Gizmos Explore Learning, then you will be able to see the answer key.
