Under the Microscope Lesson 3 Quiz

Describe if the images below are a plant or animal cell.

• Cell 1- Plant, Cell 2- Animal
• Cell 1- Animal, Cell 2- Plant
• Cell 1- Animal, Cell 2- Animal
• Cell 1- Plant, Cell 2- Plant

What is the name of the organelle shown by letter A?

• Mitochondrion
• Cell Wall
• Chloroplast
• Cell Membrane

Which structure shown in the model contains genetic material and controls the cell’s functions?

• Mitochondrion
• Cell Membrane
• Nucleus
• Cell Wall

How would the model shown below be different if it were showing a plant cell?

• There would be a second cell membrane to help the plant make its own nutrients.
• There would be chloroplasts to convert air and water into sugar (photosynthesis).
• There would be no mitochondria to provide the plant with proteins.
• There would be no nucleus so the cell would not have genetic information.

Which of the following pieces of evidence would you use to argue for or against the claim that the structure and function of the cell membrane is related to the overall function of the cell?

• The structure of the cell membrane allows some, but not all, materials to pass through the cell
• The function of the cell membrane is related to the function of the cell as a whole because the membrane is located in the very center of the cell.
• The cell membrane only functions normally after all the other cell organelles carry out their individual functions.
• Oxygen enters the cell and waste products exit the cell through the cell membrane, but not all cells need oxygen or produce waste.

Why can't humans perform photosynthesis?

• Humans are made of animal cells which do not have chloroplasts
• Human are made of plant cells which only perform photosynthesis when we eat glucose
• Humans can perform photosynthesis, but only when the sun is shining
• Humans are made of animal cells, but their chloroplasts are just for storage and do not work

What component in the system sketched above models the mitochondria, and why?

• The battery in the circuit is like a mitochondrion in a cell because that's where the energy for the system comes from.
• The wires in the circuit are like the mitochondria because they contain green pigment, like the chlorophyll used for photosynthesis
• The light in the circuit is like a mitochondrion because it is the energy producer for the cell, and the light bulb provides the energy needed for the battery to work.

Imagine you made a chain of paperclips to model a protein. How could you use your paperclip chain to model the activity of the lysosome?

• I can add more paperclips to the protein chain because lysosomes make proteins.
• I can break apart the protein paperclip chain and recycle the old parts because lysosomes break down cellular waste.
• I cannot use a paperclip chain to model the activity of a lysosome.

Explain how a strainer or colander models a cell membrane

• A strainer is like a cell membrane because it allows some materials to pass through, but not others
• A strainer is like a cell membrane because it has to be activated by the user for materials to pass through
• A strainer is like a cell membrane because it is blue in color and difficult to hold.

Explain how cilia is like a weather instrument.

• Weather instruments are only made from proteins, like cilia is inside a cell. They provide structure and support for the weather.
• Weather instruments are used in every country around the world to make predictions. The cilia in your cells are used in every single organ in your body to make predictions and fortunes about your health.
• Weather instruments gather information about weather conditions around you, like how cilia gather information about the conditions around the cell