Cell Test Flashcards
The 3 principles of cell theory
*all living cells are composed of one or more cells
*a cell is the basic unit of life
*all cells come from pre-existing cells
The differences and similarities of prokaryotic and eukaryotic cells
Prokaryotic - no nucleus, bacteria, single-celled
Eukaryotic - yes nucleus, single or multi-celled
List the structures that distinguish plant cells from animal cells
Plant cells have a cell wall and chloroplast while animal cells do not
Describe the function of cell membrane
Acts as a barrier for the cell
Describe the function of the cytoskeleton
Gives the cell shape
Provides structural support
Describe the function of cytoplasm
Hold everything in place
Describe the function of the nucleus
Protects the DNA
Describe the function of nucleolus
Makes RNA which makes up ribosomes
Describe the function of ribosomes
Makes proteins
Describe the function of the smooth and rough ER
Rough: makes proteins and packages them
Smooth: makes lipids
Describe the function of the vesicle
Storage for water, nutrients, waste, ect.
Describe the function of centrioles
Helps cell divide by pulling chromosomes apart
Describe the function of cilia
Move fluid across cell’s surface
Describe the function of flagella
Move entire cell throughout fluid
Describe the function of the mitochondria
Breaks down food to release energy as ATP
Describe the function of chloroplast
Converts energy from the sun
Describe the function of the cell wall
Protect and maintains shape
The role of lipids
Stores energy
The role of proteins
A structure and used for an energy source
The role of carbohydrates
Primary source of energy
3 reasons the ribosomes are the most essential organelle in the cell
Prokaryotic and eukaryotic cells need ribosomes. Every living cell needs proteins and ribosomes make them.
Differentiate between positive and negative feedback loops
A positive loop amplifies a change in the system