The Cell Theory Flashcards
NO Reprobar
The ______ is the SMALLEST unit of an ELEMENT and is composed by neutrons, protons and electrons.
Atom
The ________ is the UNION of 2 or more ATOMS of the same or different elements.
Molecule
The ____ is the BASIC UNIT OF LIFE, and the strctural and functional unit of living things.
Cell
A ______ is a GROUP OF CELLS with a common function.
Tissue
An _____ is a COMPOUND OF TISSUES functioning to achieve a goal.
Organ
An ____________ is a compund of SEVERAL ORGANS working together.
Organ System
An ________ is a complex organism that CONTAINS ORGAN SYSTEMS
Organism
A __________ consists of organisms of the SAME SPECIES is a particular area
Population
A _________ is an INTERACTING POPULATION in an area
Community
An _________ is a COMMUNITY PLUS the PHYSICAL ENVIRONMENT
Ecosystem
A _________is the region of the Earth’s CRUST, WATER, and ATMOSPHERE
Biosphere
How many levels of life exists?
11
What does the cell theory states?
- All living things are COMPOSED of CELLS
- The cell is the SMALLEST UNIT OF LIFE
- Cells only arise from PRE-EXISTING CELLS
The cell theory was made in the _____ by ____________________
1600s by Anton Van Leeuwenhoek
_____________ named the cell because it reminded him of ___________
Robert Hooke
It reminded him of PRISION CELLS
