Chapter 7 Cells Flashcards
What are the two things that cells have in common
Surrounded by a cell membrane
Contain DNA- carries biological info
What is cell theory
All living things are composed of cells
Cells are the basic units of structure and function in living things
New cells are produced from existing cells
What is an example of a prokaryote
Bacteria
Prokaryote cells are generally smaller and what than eukaryotes
Simpler
Do prokaryotes have genetic material in the nucleus
No
Prokaryotes sometimes have what
Internal membranes
What can a prokaryote do
Grow
Reproduce
Respond to the environment
Some can move by gliding/swimming
Eukaryotes are generally what and what than prokaryotes
Larger
More complex
Eukaryotes are highly specialized true or false
True
Eukaryotes have dozens of what
Structures and internal membranes
What is in the nucleus of a eukaryote
DNA
Can eukaryotes be single celled or multicellular
Both
What is a cell
Basic unit of life
What is a membrane
Thin layer of protection
What are some examples of a eukaryote cell
Humans
Animals
What categories does a cell belong to
Eukaryote
Prokaryote
What does unicellular mean
1 cell
What does multicellular mean
Many cells
What was Robert Hooke known for
Looked at a cork under a microscope
Anton van Leeuwenhoek did what
Observed pond water filled with tiny organisms
Matthias Schleiden figured out that
All plants are made up of cells
What did theodor schwann observe
All animals are made up of cells
What was Rudolph virchaws theory
All cells come from existing cells
Janet plowe believed what
Cell membrane is a physical structure
