How old is Earth?
4.5 Billion Years old
How old is life?
3.7 Billion years old
Characteristics or behaviors that arise from interactions of simpler components within a system?
Properties of Life
Organization, metabolism, growth, stimulation, reproduction, and adaptability are all?
Traits/properties of life
Atom>Molecule>Organelle>Cell>Tissue>Organ>Organism>Population>Ecosystem>Biosphere is the>
Hierarchical order of complexity
What falls into the category of an organism?
An assembly of molecules functioning as a stable whole that exhibits life (Multi and Unicellular)
Antonie Van Leeuwenhoek
First person to create a microscope and observe an organism
Robert Hooke
First person to use a microscope to observe living things. He discovered the cell
What are the 3 principals of the cell theory?
As the basic structural and functional units of all living organisms, cells carry out all the ___?
essential processes of life
Cells are the basic ____ and ___ units of all living organisms
Functional and Structural
All cells have ___, ____, and ____
Plasma membranes, Nucleic acids, and Ribosomes
T/F All cells have a DNA containing central region?
True
The DNA containing central region is surrounded by the ___?
Cytoplasm
____ and ____ carry hereditary information and direct the manufacture of cellular molecules
DNA and RNA
Cells use __, respond to ___ in their environment, Reproduce, and pass on _____ information?
Energy, environment, and hereditary
Cells occur in ___ (anucleated) and ___ (nucleated) forms, each with distinctive structures and organization
Prokaryotic and Eukaryotic
Prokaryotic cells lack a ___ and have no _____
Nucleus and no internal compartmentalization
Pro/Euk Nucleus?
Prokaryotes-No (nucleoid region)
Eukaryotes- Yes
Pro/Euk transcription location
Prokaryotes-Cytoplasm
Eukaryotes-Nucleus
Pro/Euk Translation Location
Both Cytoplasm
Pro/Euk Cell membrane additions?
Prokaryotes-Hopanoids
Eukaryotes- Sterols (Cholesterol)
Pro/Euk Size?
Prokaryotes-small
Eukaryotes-Larger
Unicellular organisms carry out ____?
All activities necessary for life