Flashcards in Cellular Biology Deck (24):
Cell Theory states...
-All living things composed of cells, basic functional unit of life
-Chemical reactions of life occur in cells
-Arise from preexisting cells
-Carry genetic info as DNA
What displays selective permeability?
Where does rRNA synthesis occur?
What is function of smooth ER?
-Metabolism/detox drugs and poisons
-Production of lipids including steroid hormones
-Stores Ca++ ions in muscles cells
Where does most metabolism take place?
Streaming movement in cell --> transport
-Not bound by membrane
-Located in centrosome region
-NOT in plants
Injured/dying cell ruptures lysosomes to self-destruct
-Hollow rods of tubulin
-Compose centrioles, cilia, flagella
-Solid rods of actin
-Move materials across plasma membrane in contraction phase of cell division
-Bring in large volumes of extracellular material
-Ingestion of fluids/small particles
-Engulfing large particles
-Fusion of vesicle with cell membrane and release of large volume
Does material pass through cell membrane in endocytosis or exocytosis?
-Brownian movement (KE spreads small particles)
-Cyclosis (streaming by circular motion)
-ER (continuous passageway from plasma membrane to nuclear membrane)
-Centrioles separate and move to opposite poles
-Spindle apparatus forms
-Nuclear membrane dissolves
-Centrioles at opposite poles
-Fibersattach at kinetochore
-Sister chromatids separate and pulled to opposite poles by shortening fibers
-Spindle apparatus disappears
-Nuclear membrane forms
-Each nucleus is diploid and chromosomes uncoil
-Near end of telophase
-Cleavage furrow (animal) cell plate (plants)
Which stage is responsible for Law of Independent Assortment?
Where does cellular respiration occur in prokaryotes?