Microscopes and Cells

A plant and an animal are both living things. According to the Cell Theory, what can you conclude about these two very different organisms?

• They are both made of one or more cells.

• Plants have cells but animals don't.

• They both come from the same kind of cell.

• The both come from a non-living organism.

Cell theory states:

• All living cells must have a cell wall.

• The basic unit of life is a cell.

• All living cells require glucose for survival.

• All cells contain a nucleus.

The smallest unit that can perform the basic activities of life is

• a cell.

• an organ.

• a tissue.

• an organism.

Unlike eukaryotes, prokaryotes do not have

• DNA

• cytoplasm

• cell walls

• a membrane bound nucleus

What type of microscope would give you the best view of the structures inside a mitochondrion?

• Transmission Electron

• Scanning Electron

• Light

• Magical Mystical

Why can't electron microscopes view living things?

• They require the specimen to be in a vacuum.

• They can. It's light microscopes that can't view living things.

• Electrons kill whatever they touch.

• They have to be very cold in order to operate. Living things would freeze.

What sort of microscope took this picture of the coronavirus?

• Scanning electron

• Transmission electron

• Light

• Super Duper

Which is not a characteristic of prokaryotes?

• Membrane bound organelles

• No nucleus

• Smaller than Eukaryotes

• Ribosomes

What is the most important function of the membranes surrounding the organelles of eukaryotes?

• They allow for different conditions inside the organelles than in the cytoplasm.

• They make the organelles bigger.

• They make the organelles look cooler.

• They help the organelles reproduce.

What does the nucleolus do?

• It makes ribosomes.

• It holds the DNA.

• It makes ATP.

• It breaks down toxins and drugs.