Characteristics of Living Things
All living things are organized; they are composed of _____.
cells
What is a theory in science?
the best current explanation based on facts
What is the function of organic molecules in cells?
building materials
What are the two main types of cells?
prokaryotic and eukaryotic
Where is the DNA contained in a eukaryotic cell?
nucleus
What is reproduction?
an organism produces new individuals of the same species
What is a cell?
the most basic unit of life
Monomers link together to form __________.
polymers
What is a unicellular organism?
an organism made of one cell
What is the function of the cell membrane?
surrounds the cell and controls what enters & exits
Fill in the blank: cell -> _____ - > organ -> system -> organism
tissue
What are cells named after?
the little rooms where monks live in a monastery
What are the 2 types of nucleic acids?
DNA and RNA
Name the three things found in all types of cells.
DNA, cytoplasm, cell membrane (ribosomes, too)
What is the jelly-like fluid that fills the cell?
cytoplasm
What is homeostasis?
an organism's internal balance
Where do cells come from?
Name one example of a lipid.
fats, oils, waxes
Nearly all multicellular organisms are made of __________ cells.
What is the function of the Golgi body in the cell?
packages and delivers materials
All organisms respond to stimuli. What is a stimulus?
a change in an organism's internal or external environment
Which scientist discovered and named cells?
Robert Hooke
Which organic molecule is made up of amino acids?
proteins
Name two differences between prokaryotic and eukaryotic cells.
Prokaryotic Cells: Bacteria, no Nucleus or membrane-bound organelles
Eukaryotic Cells: Animals and Plants, Nucleus and membrane-bound organelles
Name the three organelles found in plant cells that are not found in animal cells.
cell wall, chloroplasts, large central vacuole