Cell Ultrastructure Flashcards
What is the nucleus surrounded with
Nuclear envelope - double membrane
Nuclear pores
Chromatin
Nucleolus
Where is the SITE of ribosome production
Nucleolus
What is the Rough Endoplasmic Reticulum
Series of flattened sacs enclosed by a membrane with ribosomes on the surface
RER folds and processes protein
What is the Smooth endoplasmic reticulum
System of membrane bound sacs
Produces and processes lipids
What is the Golgi apparatus
Series of fluid filled, flattened and curved sacs
Process and packages protein and lipids
Produces lysosomes
What is the mitochondria
Oval shaped bound by a double membrane called the envelope.
Inner membrane is folded to form Cristae with membrane , containing all enzymes needed for respiration
What are centriole
Hallow cylinders containing all micro tubules
Involved in cell division
Where is the site of ribosome production
Ribosomes
What is a lysosome
Vesicle container Digestive enzymes bound by a single membrane
Hydrolytic Enzyme called lysozyme
What does a prokaryotic cell contain
Cell wall Capsule Plasmid Flagellum Pili Ribosomes
What is a plasmid
Circular piece of DNA
What is a flagellum
A tail like structure which rotate to move the cell
What are centrioles
Microtubles that produce spindle fibres during mitosis
Where does the site of photosynthesis take place
Chloroplast
What is Cillia
Small hair like structures that project from the surface of cells
What are cytoskeleton
Mesh of protein fibres: micro tucked,filaments and intermediate fibres
Structural support and intercellular transport
What is an eurkrotic cell
type of cell that contains a nucleus along with membrane bound organelles.
Describe the structure of ribosomes
Made from RNA and protein
What does the inner membrane of the MITOCHONDRIA do
It’s forms a structure called cristae
Increases SA
What is the function of ribosomes
Protein is made
Assemble amino acids
What is the structure of Golgi apparatus like
Stacks of flattened membrane
Cisterne
Function of the Golgi apparatus
Allows internal transport
Lipid synthesise
What organelles structure is spherical sacs
Lysosomes (garbage collectors)
What is the role of the lysosomes
Digestive enzymes
Beak down work out components
