1.2 An Introduction To Cells Flashcards
What is cell theory?
Cells are the building blocks of all plants and animals
All cells come from the division of pre-existing cells
Cells are the smallest units that perform all vital physiological functions
Each cell maintains homeostasis at the cellular level
What are the building blocks of all plants and animals?
Cells
What do cells result from?
The division of pre-existing cells
What is homeostasis?
The maintenance of a relatively constant internal environment
List the five main structures in most cell.
Nucleus
Mitochondria
Plasma membrane
Endoplasmic reticulum
Cytoplasm
What is contained in a nucleus?
Genetic material
Name one process that occurs in mitochondria.
Glucose and oxygen combine to make energy (ATP)
Name one function of the plasma membrane.
It forms a barrier around the cell
What is the endoplasmic reticulum?
It is an internal passageway in a cell
What is the cytoplasm?
A fluid contained within a cell
Where is genetic material contained in a cell?
The nucleus
Where in the cell does glucose and oxygen combine to make energy (ATP)?
Mitochondria
What structure forms a barrier around the cell?
The cell membrane
What is the internal passageway in a cell called?
Endoplasmic reticulum
What is the fluid contained in a cell called?
Cytoplasm
