Chapter 3.1 - 3.2 Flashcards
The first person to identify cells, and named them.
Hooke
Because he made better lenses, ______________ observed cells in greater detail. First to describe living cells when he observed numerous single celled organisms swimming in a drop of pond water. “Animalcules”
Leeuwenhoek
He was the first to note that plants are made of cells
Schleiden
He concluded that all living things are made of cells
Schwann
He proposed that all cells come from other cells
Virchow
what are the major principles of the cell theory
1) all organisms are made of cells
2) all existing cells are produced by other living things
3) the cell is the most basic unit of life
A jellylike substance that contains dissolved molecular building blocks- such as proteins, nucleic acids, minerals, and ions
Cytoplasm
In some types of cells, the cytoplasm also contains ________________, which are structures specialized to perform distinct processes within a cell.
Organelles
What is the largest and most visible organelle in many cells
The nucleus
________________________ do not have a nucleus or other membrane bound organelles
Prokaryotic cells
Where is the DNA suspended in prokaryotic cells
In the cytoplasm
All ________________ are single celled organisms
Prokaryotes
_____________________ have a nucleus and other membrane bound organelles
Eukaryotic cells
Where is the genetic information stored in eukaryotic cells
The nucleus
