Shared Flashcard Set

Details

biology exam 3
n/a
28
Biology
Undergraduate 2
11/11/2010

Additional Biology Flashcards

 


 

Cards

Term
prophase
Definition
chromosomes condense, mitotic spindle begins to form
Term
metaphase
Definition
chromosomes complete migration to middle
Term
anaphase
Definition
sister chromatids separate and are pulled towards opposite poles
Term
telophase
Definition
nuclear envelope reforms, the spindle appartatus disappears
Term
animal cytokinesis
Definition
cells are pinched in half by constriction of inner ring of actin-myosin fiber
Term
plant cytokinesis
Definition
form new membrane by dividing cells in 2 compartments, microtubules form scaffolding across cell
Term
G1
Definition
routine business (step 1)
Term
S
Definition
DNA synthesis (2nd step)
Term
G2
Definition
preparing to divide (3rd step)
Term
M
Definition
division (last step)
Term
examples of light dependent reactions
Definition
photosystems I and II
Term
examples of light independent reactions
Definition
calvin cycle
Term
photosystem I
Definition
basically and electron transport chain, reduced NADP+ to NADPH
Term
photosystem II
Definition
obtains electrons by oxidizing water, makes ATP, highly endergonic
Term
steps of calvin cycle
Definition
1. carbon fixation 2. reduction 3. regeneration
Term
enzyme used in photosynthesis
Definition
RUBISCO
Term
C4
Definition
plants in hot places use this-makes carbon 4 molecule instead of carbon 3
Term
CAM
Definition
cacti do this, only open stomata at night and store CO2 until it's light out
Term
ploidy
Definition
the number of complete sets of chromosomes in a biological cell
Term
genome
Definition
the entirety of an organism's hereditary information
Term
synapsis
Definition
when homologous chromosome pairs come together in early prophase and non-sister chromatids interact with each other
Term
crossing over
Definition
swapping parts, playing twister, homologous recombination- major way we get genetic variation
Term
endothermy
Definition
produce heat from their own body tissues
Term
extothermy
Definition
rely on heat gained from the environment
Term
osmoregulation
Definition
active regulation of osmotic pressure
Term
hypertonic
Definition
has more salt
Term
hypotonic
Definition
has more water
Term
what can you do with nitrogen waste?
Definition
convert into urea or uric acid, or dilute it
Supporting users have an ad free experience!