Ultrastructures of the Cell Flashcards
Nucleus
Contains genetic material: DNA
Regulates growth and division
Golgi Complex
Packages lipids and proteins for transportation
Packaging plant and secretory vesicle of the cell
Nucleolus
Site of ribosome synthesis & ribosomal RNA synthesis
Ribosome
Protein assembly site
Peroxisome
contains enzymes for oxidation
Centrosome
Microtubule organizing center
Mitochondria
Powerhouse of the cell. Responsible for the production of adenosine triphosphate (energy source)
Lysosome
tiny sacs created by golgi bodies. contains digestive enzymes.
Endoplasmic Reticulum
circulatory system of the cell.
involved in production, processing & transport of proteins synthesized by ribosomes
Cytoskeleton
Maintains cell shape
Plasma membrane / Cell Membrane
Outer boundary, involved in transport & cell-to-cell communication via signal transduction
Vacuoles
helps in storage and disposal of wasteproducts
endocytosis: paloob
exocytosis: palabas
Flagella and pili
Single, long, hair-like. Facilitates the movement and communication between cells
Cell wall
Envelope of the plant cell which gives support, strength and protection
Cytoplasm
composed of cytosol. intracellular environment containing organelles
Organelles
Responsible in performing metabolic activities
Centriole
creates centrosome and basal bodies
chloroplast
contains chlorophyll- essential for photosynthesis
Rough E.R
lined with ribosomes for the distribution of proteins
Smooth E.R
for the transportation of carbohydrates and lipids
Nuclear Envelope
double membrane surrounding nucleus
what organelles are present in bacterial cell? (3)
Cell wall
plasma membrane
ribosomes
what organelles are present in plant cell? (10)
Cell wall
plasma membrane
vacuoles
golgi complex
nucleus
mitochondrion/-ia
ribosomes
nucleolus
chloroplastid
endoplasmic reticulum
what organelles are present in animal cell? (9)
plasma membrane
vacuoles
golgi complex
nucleus
mitochondrion/-ia
ribosomes
nucleolus
endoplasmic reticulum
lysosome
size of prokaryotic cell
1 to 10 um
size of eukaryotic cell
10 to 100 um
shape of prokaryotic cell
sphere, rod, spirals
shape of eukaryotic cell
spheroid,ovoid,cuboidal,flat,discoidal
Type of nucleus in prokaryotic cell
absent
type of nucleus in eukaryotic cell
Present, true nucleus
structure of dna in prokaryotic cell
single stranded, circular
structure of dna in eukaryotic cell
double stranded, linear
structure of ribosome in prokaryotic cell
70S
structure of ribosome in eukaryotic cell
80S
size of plant cell
10 to 100 um
size of animal cell
10 to 30 um
shape of plant cell
cuboidal, rectangular
shape of animal cell
irregular, round
protective covering of plant cell
cell wall
protective covering of animal cell
plasma membrane
spindle fibers
network of microtubules that extend during cell division
microvilli
tiny, finger-like projections that increase surface area of cell for efficient absorption
Cilia
numerous, short, hair-like that propel material along cell surface
channelopathies
diseases that stem from faulty ion channel
secretion
release of a substance from a cell. begins when body sends biochemical msg
lysosomal storage disease
absence or malfunction of an enzyme in lysosome