Jackson - 7th Science Test 2 Flashcards
God created the first cell during when?
Creation Week
On what day were Eukaryotic Cell’s created?
Day 3
On what day were Prokaryotic Cell’s created?
Day 5 and 6
What are the 4 things that identify Cell Theory?
- All living things are made of one or more cells
- All cells come from pre-existing cells
- Cells perform the functions of living things
- Model
Who first used the term cell to identify the smallest working unit of an organism?
Robert Hooke
What are Prokaryotes?
- No nucleus
- Microscopic
- Most are bacteria
- Unicellular (one cell)
What are Eukaryotes?
- Nucleus
- Some are unicellular (one cell)
- Multicellular
- Form tissues
What are multicellular organisms?
cells from tissues
What is tissue?
A group of similar tissues that work together
What are examples of groups of tissues?
- Muscle cells work together to form a heartbeat
- White cells in the tissues of the skin that work together to provide a protective covering for the body
Cells in one tissue perform tasks that are very often different from _____?
the roles of other tissues
Cells from different tissues often look and behave very _____?
differently
Ex. muscle and skin cells look very different because they are each part of tissues doing very different jobs
Both Eukaryotes and Prokaryotes both have a _____?
cell membrane
Plants (eukaryotes) have ______?
cell walls
What are cell membranes?
Regulates what comes in and out of the cell
What is a capsule?
Slimy layer that some bacteria surround themselves with?