L1: Exploring cells revision

What is the smallest unit of living things?

• a brick

• a cell

• a mitochondrion

• a protein

Which of the following is an example of a multicellular organism?

• bacteria

• amoeba

• worm

• None of the above

Bacteria is an example of a _______ organism.

• multicellular

• mammal

• unicellular

• nonliving

What does 'multicellular' mean?

• many cell

• None of the above

• one cell

• without cells

What type of microscope requires light to pass through a specimen?

• Light

• SEM

• TEM

• NBA

Instead of light, a TEM and SEM utilize ____________ to create an image.

• lens

• electrons

• protons

• neutrons

Which statement is a part of the cell theory?

• Bacteria are prokaryotic cells

• Eukaryotic cells are complex

• Humans are multicellular

• All cells come from preexisting cells

Who discovered the cell when looking at the cork?

• Francesco Redi

• Robert Brown

• Robert Hooke

• Van Leeuwenhoek

According to cell theory, where did this cell come from?

• Another living cell

• The nonliving environment

• A multicellular organism

• Energy from sun

The magnification of the Transmission Electron Microscope is ______________.

• 100,000x or more

• 20,000x

• 1000x

• None of the above