Cells (parts and functions) Flashcards
English scientist who devised the earliest microscope and was credited as the first to see a cell
Robert Hooke
Dutch naturalist credited to be the first to study magnified cells
Antonie van Leeuwenhoek
What does the cell theory state?
all organisms are composed of one or more cells
cells are the smallest and basic unit of structure and function in organisms
cells only arise from previously existing cells
What is the most basic unit of life?
cell
2 types of cells
Prokaryotes
Eukaryotes
cells with no distinct nucleus
Prokaryotes
cells with distinct nucleus
Eukaryotes
thin barrier that forma a boundary separating individual cells to the external environment
Cell membrane
the cell membrane consists of a?
Phospholipid bilayer
Phospholipids have a ____ head and a ____ tail
Hydrophilic head
Hydrophobic tail
What is the model for the cell membrane?
fluid mosaic model
Cell part that is present in plants, fungi, and bacteria
a rigid layer for protection, support and shape
Cell wall
Cell part that fills the space between nucleus and the cell membrane
Cytoplasm
Little organs suspended in the cytoplasm
organelles
Organelle that serves as the storehouse of genetic information
Nucleus