Final Exam: Cells Flashcards
What is Anton van Leewenhoek known for
First scientist to observe cells with a microscope
What is Matthias Schleiden known for
Plants are made of cells
What is Theodor Schwann known for
Animals are made of cells
What is Robert Hooke known for
Gave name “cell”
What is the difference between a eukaryotic cell and prokaryotic cell
Prokaryotes:
- No nucleus
- Unicellular
- No membrane-bound organelles
- Smaller
- Simpler
Eukaryotes:
- Contains a nucleus
- Multicellular or unicellular
- Contain organelles
- Newer, larger, more complex
What structures do eukaryotic cells and prokaryotic cells have in common
DNA, ribosomes, cellular membrane, cytoskeleton, cytoplasm
What kind of cells are prokaryotic
Bacteria
What are the three points to the cell theory
1) All living things or organisms are made of cells and their products
2) Cells come from other cells
3) Cells are the basic building units of life
Passive Transport
transport that does not use energy
Diffusion
Movement of molecules from an area of higher concentration to an area of lower concentration (high->low)
Osmosis
The diffusion of water across a semipermeable membrane from an area of high water concentration -> low water concentration (high->low)
Facilitated Diffusion
The movement of molecules from an area of higher concentration to an area of lower concentration using carrier proteins (high->low)
Active Transport
transport that uses energy (ATP)
Transport Proteins
Used in facilitated diffusion to help move solutes across the membrane
Endocytosis
Refers to the movement of molecules into a cell
Phagocytosis
Type of endocytosis around a food particle
(Engulfs a food particle)