Flashcards
Eukaryotes
Flashcards do conjunto (16)
- 1flagella-function = locomotion
-in some protozoa and algae
- surrounded by cytoplasmic membrane
- move in wave like manner - 2cilia- mainly on eukaryotes
-move foreign material
- on some protozoa and animal cells - 3cell wall- rigid poly saccharides
-cellulose = on all plants and some fungi
-chitin
-glucan and mannan = yeasts
- pellicle = protective covering if protozoa
- no peptidoglycan - 4glycocalyx- strengthens membrane
-attach cells together
- cell-cell recognition
-in animal cells
- CHO, glycolipids,glycoprotein - 5plasma (cytoplasmic) membrane-external covering of cell
-phospholipid bilayer
- has integral and peripheral proteins
-CHOs, glycoproteins = surface receptors
-contains sterols - 6ribosome- site of protein synthesis
-cytoplasmic: 80S = 60S + 40S subunits
-mitochondian: 70S = 50S + 30S subunits
- each subunit = many proteins + rRNA - 7cytoplasm- inside plasma membrane
- cytoskeleton: cell shape and strength, transport within cell, cell movement - 8nucleus-largest internal structure
- contains most genetic material
-double membrane = nuclear envelope
-nuclear pore= communication with cytoplasm
- nucleolus/ nucleoli = site if rRNA synthesis - 9endoplasmic reticulum- funtion = synthesis of lipids and proteins; transport synthesized molecules to other site via secretory vesicles
-rough ER: attached ribosomes; protien synthesis
- smooth ER: no ribosomes; lipid synthesis - 10golgi apparatus/ complex-found near nucleus
-receives and transports synthesized lipids and proteins from ER via secretory vesicles - 11mitochondria (powerhouse of cell)- function = cellular respiration = energy production (ATP)
-enzymes for ATP production on cristae
-DNA: DS, circular - most genes: respiration enzyme
-ribosome: 70S = 50S + 30S subunits
- automonous replication - 12chloroplasts-function = site of photosynthesis
- cytoplasmic membrane-bound organelle of plants and algae
-thylakoids = flattened sacs containing chlorophyll
-DNA: DS DNA
- Ribosome 70S
- replicates autonomously - 13lysosomes-funtion = contain hydrolytic enzymes
- membrane bound spheres
-derived from golgi apparatus
-enzymes capable of breaking down engulfed bacteria
-important in phagocytosis
-found largly in white blood cells - 14vacuoles-funtion = membrane bound cavity or space for storage (proteins, sugars, metabolic wastes, water)
-comes from golgi complex - 15centrosomes- funtion = role in cell division
- made of pericentrolar area and centioles
-centrioles are a pair of cylindrical structures at right angle
- each bundle = 3 microtublues
-form eukaryotic cilia and flagella - 16endosymbiont hypothesiseukaryotes developed from prokaryotes that lived in symbiosis
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- microbiology FlashCards sobre Eukaryotes, criado por Lena Falkenbury em 21-09-2019.
- Criado por
- Lena Falkenbury
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