Introduction to Cells-Amoeba Sisters

What is the difference between the terms unicellular and multicellular?

• Unicellular means made of one cell. Multicellular means made of many cells.

• Bacteria is unicellular, and only plants are multicellular.

• Both words mean the same thing.

All living things are made of ______.

• species

• cells

• units

Humans are made of _______ cells.

• prokaryotic

• eukaryotic

Quick Review: What are the three parts to the cell theory? (choose all that are correct)

• All living things are made up of cells.

• All cells come from pre-existing cells

• Organisms are only multicellular.

• The cell is the smallest unit of function in an organism

The prefix "eu-" in eukaryotes rhymes with ​ (a)   so they ​ (b)   membrane bound organelles. The prefix "pro-" in prokaryotes rhymes with ​ (c)   so they ​ (d)   membrane bound organelles.

• do
• do have
• no
• do not have
• move
• go

Which of the following best describes an eukaryotic cell?

• It has no nucleus, but does have membrane bound organelles

• It has a nucleus, but does not have membrane bound organelles

• It has a nucleus and membrane bound organelles

• It has no nucleus and no membrane bound organelles.

What do prokaryotes NOT have?

• Nucleus and cytoplasm

• Ribosomes and membrane bound organelles

• Nucleus and membrane bound organelles

What does the cell membrane do?

• Regulate what enters the cell and maintain homeostasis

• Keep things out of the cell and provide rigid structure

• Allow everything into the cell and cause internal fluctuations

What is the cytoplasm?

• The jelly-like substance that is put on a sandwich

• The jelly-like substance that surrounds the outside of cells

• The jelly-like substance inside cells that surrounds internal structures

True or False: ribosomes are found in both prokaryotes and eukaryotes.

• True

• False