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Cells Vocabulary

QuestionAnswer
Cell The basic unit of life
Element Basic materials that can not be broken down
Atom Smallest amount of any element
What are the 4 most common elements in living things? Oxygen, Carbon, Nitrogen, Hydrogen
What is measured by pH? How acidic or basic a solution is
The pH scale ranges between? 0-14
If the pH is less than 7 the substance is? Acidic
If the pH is greater than 7 the substance is? Base
If the pH is exactly 7 the substance is? Neutral
What is the study of cells? Cytology
What invention allowed the discovery of cells? Compound light microscope
Who is credited with discovering and naming cells? Robert Hooke
What type of cells did Robert Hooke observe? Cork cells
Why did Robert Hooke call them cells? They reminded him of the small rooms monks lived in at a monastery
What is the contribution of Dujardin? Cells were alive
What is the contribution of Schleiden? All plants are composed of cells
What is the contribution of Schwann? Animals are multicellular
What is stated by the Cell Theory? All organisms are composed or more cells. The cell is the basic unit of structure and organization of organisms. All cells come from preexisting cells.
What determines the size of an organism? The number of cells
Define Organelle Small, specialized structures
What are Eukaryotic Cells? Cell or cells in which the genetic material is DNA in the form of chromosomes contained within a distinct nucleus.
What are Prokaryotic Cells? A cell including the bacteria and cyanobacteria, that has neither a distinct nucleus with a membrane nor other specialized organelles.
What is Specialization? Division of layer
What is the advantage of specialization? The organism gets good at the one job
What is the disadvantage of specialization? Interdependence
Created by: BranLee
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