1.1 Cell Structure and Function Flashcards
What is the function of the Golgi Bodies?
Seperates and packages proteins
What is the function of the plasma membrane?
It acts as an external barrier.
It controls what is allowed to come in and out of the cell
Describe the structure of the plasma membrane
Double phospholipid layer with proteins
What 2 structures does the nucleus contain?
Nucleolus and Chromatin
Where are the RNA units located ?
Nucleolus
What is the function of the nucleolus?
Protein synthesis
Which DNA molecule carries the genetic code?
Chromatin
Name 8 organelles in the cytoplasm
ER Ribosomes Golgi Apparatus Mitochondria Lysosomes Peroxisomes Cytoskeleton Centrioles
What is the function of the endoplasmic reticulum?
Responsible for intracellular transport
Describe the structure and function of the smooth ER
Has no ribosomes attached to it
Makes carbs and lipids
Neutralizes poisons
Describe the structure and function of the rough ER
Has ribosomes attached to it
Makes hormones and enzymes
What is the specific site of protein synthesis?
Ribosomes
Which organelle has multiple folds to increase surface area?
Mitochondria
What is the function of the mitochondria?
Acts as a power station where energy is made
What is energy stored as?
ATP
What is the function of Lysosomes
Intracellular digestion
What is the function of Peroxisomes?
Detoxify toxic substances
Convert long fatty acids to short ones
What are the 3 things that make up the cytoskeleton?
Intermediate filaments
Microfilaments
Microtubules
Function of Intermediate filaments
Stop the cell from pulling apart
Function of microfilaments
Cell movement
Allows cell to change shape
Function of microtubles
Largest cell fibres
arranges cells organelles
What are centrioles made up of?
microtubules
Function of centrioles?
Form spindle fibres for mitotic cell division.
