Biology I: Microscopes and Cells

What is Electra's (electron microscope) main strength as a microscope?

• She's easier to use

• She uses sunlight to see cells

• She can observe living cells

• She produces highly detailed images

What is one advantage of using light microscope (Lumi) in a biology class?

• It is less expensive and shows living cells

• It requires electricity and vacuum

• It can view the inside of atoms

• It shows viruses

Why does electron microscope (Electra) need to be used in a special room?

• It's too loud

• It needs silence

• It can't be used in daylight

• It requires a vacuum and electricity

According to Lumi (light microscope), what is her main contribution to science learning?

• She creates 3D images

• She makes cell walls disappear

• She helps students see live cells

• She shows the internal structure of cells

What part of a cell can Electra show that Lumi cannot?

• Cell membrane

• Chloroplast

• Nucleus

• Ribosomes

Based on the story, what is the most important factor when choosing a microscope for learning?

• How big it is

• If it looks cool

• Whether it's new

• Whether it matches the goal

A student claims that electron microscopes are always better than light microscopes because they give clearer images. The teacher replies, "That's not always the case." Which statement best supports the teacher's point?

• Electron microscopes work better in daylight

• Electron microscopes can view colored cells

• Light microscopes are stronger than electron microscopes

• Light microscopes are better for observing live cells and their movement

A group of researchers is studying the internal ultrastructure of chloroplasts in plant cells. They want to see the membrane folds and internal compartments in high detail. Which tool should they use?

• Light microscope

• Dissecting microscope

• Scanning electron microscope

• Transmission electron microscope

During a biology class discussion, the teacher asks: "If you're doing a general observation of a plant or animal cell to identify its main organelles quickly, what microscope would be best for a beginner?" What is the most appropriate answer?

• Transmission electron microscope

• Scanning electron microscope

• Atomic force microscope

• Light microscope

A virologist needs to observe the detailed surface structure of a new virus. He chooses to use a scanning electron microscope (SEM). Why is SEM more suitable than a light microscope for this task?

• It can view color images

• It has a lower cost

• It provides 3D images with higher resolution

• It uses lenses similar to those in light microscopes