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Cell
Is the basic unit of structure and function in an organism
Stimulus
A change in an organism's surrounding that causes the organism to react.
Response
An action or change in behavior
Homeostasis
regulation of an organism's internal environment to maintain conditions suitable for life
Reproduction
Production of offspring
Sexual Reproduction
Two cells (sperm and egg) unite to produce the first cell of the new organism
Asexual Reproduction
When an organism just divide themselves in two
Biotic Factors
Living things in an ecosystem.
Abiotic Factors
Nonliving physical or chemical part of an ecosystem.
Growth
Process of becoming larger.
Development
Process of change that occurs during on organism's life.
Tissue
A group of cells that are similar in structure and work together to perform a specific function
Organ
A group of tissues that perform a specific function.
Organ Systems
A group of organs that work together to perform one or more functions.
Robert Hooke
English Scientist credited with the discovery and naming of cells using a microscope. He viewed thin slices of cork.
Theodor Schwann
A German scientist who along with Schleiden is best known for developing the cell theory that all living things are composed of cells. He established that the cell is the basic unit of all living things by studying animal cells.
Rudolf Virchow
Know as the father of modern pathology. Credited with the idea that all cells come from existing cells.
Matthew Schleiden
German scientist who best known along with Schwann for developing the cell theory that all living things are composed of cells. Establishing that the cell is the basic unit of life by studying plant cells.
Cell Theory
All living things are composed of one or more cells.
The cell is the basic unit of life and organization.
All cells arise from preexisting cells.
Virus
a microscopic agent that is unable to grow or reproduce without a host cell. It is not a cell but does have DNA or RNA covered by a protein coat. It is nonliving.
Organization of Life
Organelles>>>Cells>>>> Tissues>>>> Organs>>> Organ systems>>>> Organism
Metabolism
the sum of all chemical reactions in an organism used to convert nutrients into energy
Cell Division
the division of a cell into two daughter cells with the same genetic material.
Adaptation
a special characteristic that enables an organism to better fit its environment.
Anton van Leeuwenhoek
First person to observe living cells in a drop of pond water with a simple microscope
Cell differentiation
Process that creates different types of specialized cells
Stem Cells
Special cells that can differentiate into specific types of cells
Capsid
The protein shell of a virus that surrounds its genetic material (DNA or RNA)
Host Cell
A living cell that is infected with a virus
plant organization
organelles (chloroplasts, ribosomes)>>cell>>Tissues>>Leaf>>shoot system>>plant
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