What is Biology?
the study of life
What is the most basic unit of life?
Cells
What is a theory?
A theory is similar to a hypothesis in that it answers a scientific question.
All organism are made of ____?
Cells
Anton Van Leeuwenhoek
- He observed cells in greater detail by creating a better lens.
What is an organism?
anything that possesses all of the characteristics of life
All _____ cells are produced by other ______ cells
1. existing
2. living
What is the Theory of Spontaneous Generation?
It explains that complex, living organisms may be produced from nonliving matter
What are the two major types of cells?
prokaryotes and eukaryotes
Who concluded that living things are made of cells ?
Theodor Schwann
What is a species?
a group of organisms that can interbreed and produce fertile offspring in nature
What does the prefix below mean?
Pro-
before or first
What is an example of the Theory of Spontaneous Generation?
Mice- from stored grain
Maggots- appearing in meat
A single celled organism.
What type of cells are these? (Prokaryotes, Eukaryotes, or both)
Both
Who was the first to identify and name cells?
Robert Hooke
What is the fluid inside the cell?
Cytoplasm
What does the prefix below mean?
Eu-
true
What is the Abiogenesis Theory?
The idea that certain cell parts were once free living cells.
It has a Nucleus and membrane bound organelles.
What type of cells are these? (Prokaryotes, Eukaryotes, or both)
Eukaryotes
Rudolph Virchow
Proposed all cells come from other cells
What are the organelles?
organized or specialized structures within a living cell
What does the prefix below mean?
Karyo-
Nucleus
Who and in what year was the Abiogenesis Theory proposed?
In 1966
By: Lynn Margulis
It does not have a nucleus or membrane bound organelles.
What type of cells are these? (Prokaryotes, Eukaryotes, or both)
Prokaryotes
Who was first to note that plants are made of cells?
Mathias Schleiden