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Biology final
EVERYTHING
38
Biology
9th Grade
06/10/2009

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Term
Protists
Definition

heterotroph

unicellular

Term
Sarcodina
Definition

moves with pseudopods

eats by photosynethesis

vacuum to pump out excess water

hard shells made from silica or calium

EXAMPLE: Ameba

Term
Ciliophora
Definition

cilia helps them move

largest group of protozoa

most live in freshwater

some in marine

2 nuclei

trade DNA through conjugation

EX: paramecium and sentor

Term
Zoomastigina
Definition

flagella

marine

EX: Trypanosona (African Sleeping sickness), Giradia, Trichonympha (gut of termites)

Term
Sporozoa
Definition

no movement

spores

parasitic!

EX: plasmordia (malaria)

Term

-primary succession

Definition

a process that occurs when a pioneer species colonize a barren habitat

Term
-secondary succession
Definition
 making a come-back after a disturbance, any time a natural area gets disturbed from either a natural occurrence of a man-made disruption, secondary succession begins.
Term

-Commensalism

Definition
1 species benefit and the other isn’t effected (+/0)
Term

-Mutualism:

Definition
 both species benefit from each other (+/+)
Term

-Parasitism:

Definition
 1 organism lives insides the other and harms it (+/-)
Term

Lyell:

Definition
 studied rocks, if the world changes over time, why not life?
Term

Cuvier:

Definition
 changes were results of natural disasters, catastrophism
Term
Wallace:
Definition
 1st to find patterns between species
Term

Genetic drift

Definition
: random change making an allele common in a population due to change
Term

Bottleneck effect: 

Definition

an event that drastically reduces population size

Founder effect: colonization of a new location by only a few individuals

Gene flow: physical flow of alleles between 2 or more populations

Term

Founder effect:

Definition
 colonization of a new location by only a few individuals
Term

Gene flow:

Definition
 physical flow of alleles between 2 or more populations
Term

Directional selection:

Definition
 shifts phenotypes away from ONE extreme, most common during times of change
Term

Stabilizing selection:

Definition
favors intermediate forms of a trait (preserves the most common phenotypes), prevails in stable populations
Term

Distruptive selection:

Definition
both extremes are favored
Term
Hardy-Weinberg
Definition

P= freq. of dominant allele, q=freq. of recessive allele

P2+2pq+q2=1

1=p+q

Term

Leading strand

Definition
: 3’-5’
Term

Lagging strand:

Definition
5’-3’
Term

Helicase:

Definition
 the enzyme that unzips your genes
Term

DNA polymerase:

Definition
 the enzyme that adds on the compliments to the strands of DNA from 3’ to 5’
Term

Ligase:

Definition
 the enzyme that fills the gabs between the Okazaki fragments on the lagging strand
Term

Gycolsis:

Definition

Glycolysis occurs in the cytoplasm and is the breakdown of glucose to two pyruvate molecules.

Glycolysis is universally found in all organisms and likely evolved before the citric acid cycle and electron transport system.

Glycolysis does not require oxygen.

Term
INPUTS AND OUTPUTS OF GYCOLYSIS
Definition

INPUTS: Glucose, 2 NAD+, 2 ATP, 4 ADP + 2 P

            OUTPUTS: 2 pyruvate, 2 NADH, 2 ADP, 2 ATP (net gain)

Term
INPUTS AND OUTPUTS OF CREBS
Definition

INPUTS: 2 acetyl groups, 6 NAD+, 2 FAD, 2 ADP + 2 OUTPUTS: 4 CO2, 6 NADH, 2 FADH2, 2 ATP

Term
cross section of a leaf
Definition

Cuticle

Upper E

Palisade

Vascular Bundle

Lower E

Stomata

Term
C4 and CAM plants
Definition

C4=goes through cycle to prevent photorespiration

CAM=opens stomata at night

Term
Photorespiration
Definition

O2  bounds with Rubisco instead of CO2 screwing up the Calvin making a 5 carbon compound instead of 6

Term
light reaction
Definition
NADH and ATP
Term
1 spin of Calvin
Definition

2 PGA

1 CO2

1 RUBP

3 ATP

2 NADPH

2 PGAL

1 RUBK

Term

Hypertonic and hypotonic.

 

Definition

Hyper=more solute

Hypo=more solvent

Term

plants ( moss, fern )

           

Definition

moss: starts out haploid, then during rain, egg and sperm meet and create a zygote (diploid)

            ferns: largest group of seedless, starts out as haploid heart shaped seeds that sprout a fern (diploid) called a sporophyte, the spores release the heart shaped seed

Term
The Lytic Cycle
Definition
  • Attachment: virus particle attaches to cell
  • Entry: virus enters cell
  • Replication: virus replicates in cell
  • Formation: virus acids assemble from new nucleic acids and proteins
  • Lysis and Release: virus particles direct the destruction of the host cell, cell breaks open, releasing virus particles!
Term
Lysogenic Cycle
Definition
  • Attachment: virus attaches to cell
  • Prophage and Entry: enters cell and puts its DNA into the host's DNA
  • Cell Division: cell divides and replicates and so do the virus particles
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