1. Based on what you see in the image, this is likely a cell that is a part of a organism.

2. Determine what evidence you can collect in your classroom lab using lab materials to support the idea that a cell is part of a multicellular organism. In your answer, be sure to reference which materials you are using and any considerations around scale.

3. Which part of a plant is used to absorb sunlight?

• Flowers
• Roots
• Stems
• Leaves

4. What is the filament?

• The boy cell of the flower
• The part that holds the anther and the pollen up
• The part of the flower that makes the pollen
• The part of the flower that is home to all of the boy parts

5. Your class is using microscopes to observe several samples taken from various plants and animals. All of them contain structures similar to those seen in the gif. The ones in the animal samples are rounded, as opposed to the square-shaped ones in plants, but they all have similar characteristics. This observational data provides evidence for which of the following statements?

• Living things may have parts that do not contain cells.
• All living things contain cells.
• Nonliving things do not contain cells.
• There are different types of cells within a multicellular organism.

6. Your group has decided on a method of cell sampling, but when you approach the classroom plant to take your samples, you find that the plant has died. Your group is discussing how to proceed. Whose reasoning is correct?

• “Although it’s dead, the plant is considered a living thing. Its cells are likely also dead, but we can still observe them.”
• “Although it’s dead, the plant is still considered a living thing, therefore it still contains living cells, which we can observe.”
• “Since the plant is dead, it is considered nonliving, therefore it doesn’t have cells anymore.”

7. Your lab group decides to take cell samples from the classroom plant to compare them to the ones in the gif that your teacher made. Your group is arguing about which part(s) of the plant to take their samples from. Which classmate’s reasoning is correct?

• “We can take a sample from any part of the plant since the cells are similar throughout the organism.”
• “We should sample from the leaves because that’s the part of the plant that contains cells.”
• “We should take samples from several different parts of the plant, since cells can differ within an organism.”
• “It doesn’t matter because the cells in one plant look nothing like the cells in another plant.”

8. Which of the following tools would be the most appropriate to use for observing the moving parts inside of a cell?

• A magnifying lens
• The naked eye
• A light microscope
• An electron microscope

9. Your class is investigating the question, “Are cells a feature of living things?” Which would be the best procedure to follow in order to collect sufficient data to answer this question?

• Use a microscope to examine samples collected from a variety of plants and animals. Compare what you see in the plants to the animals.
• Use a microscope to examine samples collected from different parts of a living organism. Compare what you see in each part of the organism.
• Use a microscope to examine samples collected from a variety of living and nonliving things. Compare what you see in the living things to the nonliving things.
• Use a hand lens to very carefully observe the parts of a variety of plants and animals. Compare what you see in the plants to the animals.

10. Let’s say you had access to the slide that this image was taken from, a microscope, and the fish tank. What pattern of evidence could be observed in your classroom lab to support the idea that this is a part of a multicellular organism?

11. One of your classmates makes the following observation:



"There is too much space between parts for this to be a cell. Living things that are made of cells have a lot of smaller parts inside of the cell that take up room. Look at your skin and any of the plants outside! There isn’t this much space in one cell, so this must be several different, smaller green cells moving around."



Evaluate their claim with everything you know about what makes up living and nonliving things and the information provided with the image.