1 Cell structure and function Flashcards
“Double membrane-bound large structure containing chromatin”
What does this describe?
Nucleus
“Double lipid bilayer with nuclear pore complexes”
What does this describe?
Nuclear envelope / membrane
“Dense non-membrane-bound structure in nucleus”
What does this describe?
Nucleolus
“Small structures free in cytoplasm or bound to endoplasmic reticulum. Consist of two subunits of ribosomal RNA”
What does this describe?
Ribosomes
“Extensive membrane system within the cell; may be rough or smooth”
What does this describe?
Endoplasmic reticulum
“Stacks of flattened membrane-bound cisternae”
What does this describe?
Golgi apparatus
“Double membrane-bound organelles with folded inner membrane”
What does this describe?
Mitochondria
“Lipid bilayer containing intrinsic proteins and with an external coat of carbohydrate”
What does this describe?
Plasma membrane
“Microfilaments, intermediate filaments and microtubules”
What does this describe?
Cytoskeleton
“Membrane-bound vesicles containing hydrolytic enzymes”
What does this describe?
Lysosomes
“Membrane-bound vesicle containing oxidases and catalase”
What does this describe?
Peroxisomes
“Non-membrane-bound granules and aggregates of granules (rosettes)”
What does this describe?
Glycogen granules
What is the name of a brown pigment found in cytoplasm which functions as a waste product?
Lipofuscin
What is the brown pigment found in cytoplasm which functions as skin pigmentation?
Melanin
The functionally specialised cells within an organ are referred to as the parenchyma, or the stroma?
Parenchyma
Within an organ, the less specialised supporting tissue is referred to as the parenchyma, or the stroma?
Stroma
Within the cytoplasm, the insoluble degradation product of organelle turnover is known as what?
Lipofuscin
A diplosome consists of two of what?
Centrioles
Lysosomes are derived from what two materials?
Enymes and endosomes
What term describes both the process of recycling useful material, and expulsion of waste from a cell?
Autophagy
ATP synthesis occurs in which organelle?
Mitochondria
By what method do vesicles move from the endoplasmic reticulum to the golgi apparatus?
Via the cytoskeleton
From what are microfilaments built?
Actin
What type of filament is involved in determining the shape of a cell?
Intermediate filaments
What does ampipahatic mean?
Has hydrophilic and hydrophobic parts
