Ap Bio Unit 1-5 Flashcards
Biology
The study/ science of life
Organism
an entity that displays the qualities of life
Gene
Unit of heredity
Genome
All the genetic info that the entity has
Cell
single - can be identified as a living entity by itself
Terms Largest- smallest (organism, gene genome, cell)
organism cell genome gene
Evolution
How a species has changed over a long period of time
Species
a group that’s capable of producing offspring
natural selection
A species ability to survive and produce offspring (survive) better than other.
Energy
The ability to do
Energetics
properties of energy ( bio, chemical, physical energy)
Deoxyribonucleic Acid (DNA)
a sequence of hereditary information in (ACGU)
How many Sig Figs (2.03)
3 Sig Figs
How many Sig Figs ( 0.04567863)
7 sig figs
Normal distribution
Mean Median Mode approx. =
% in one standard deviation
68%
% in 2 standard deviations
95%
Standard deviation formula
Standard error of the mean
Biotic
Living organism
Abiotic
non- living entities (rocks)
What does a biological system have
Both biotic and abiotic
All organism contain energy from what two sources
Food sunlight
Positive Control
known effect in a controlled experiment
Negative Control
unknown effect in a controlled experiment
Null Hypothesis
predicts IV has no affect
Alt Hypothesis
Predicts IV has an effect
Quantitative
Data in numbers measurable
Theory
after multiple tests conducted with the same Hypothesis
Qualitative
data- Immeasurable (feelings)
Matter
Everything that has mass and takes up space
Molecules
Chemically bonded atoms
Organic molecules
Chemically bonded atoms with Carbon
C6 H12 O6
Glucose
NO2
Nitrogen dioxide
CH4
Methane
H2O
Water
Covalent Bonds
two ions share Electrons (nonmetal + nonmetal)
Ionic Bonds
Have the same amount of electrons (one steals from the other )
Metal + nonmetal
Non Polar
electrons are shared equally
Hydrogen Carbon bonds or same type of element
Polar
Electrons are shared unequally
Electronegativity
How good an element is at attracting electrons
Why do most chemical formulas include Carbon?
Carbon is capable of creating complex formulas because it can connect with 4 other elements
Carbon Skeleton
link with other carbon atoms to form long chains
Carbon atoms can form single and double bonds
can store energy
Organic molecules
anything that contains Carbon
Monomer
a single building block of life
Monosccahrides
Carb’s monomer
Nucleic acid
DNA monomer
Lipid monomer
Not available but they are made of glycerin and fatty acids
Amino Acid
Protein’s monomer (22)
Dimer
2 monosaccharides
DNA
Deoxyribosenucleic acid
ose-
sugar (glucose, fructose)
RNA
Ribose nucleic acid
Carbohydrates contain
Carbon
Protein contains
Carbon Nitrogen
Nucleic acid contains
Carbon, Nitrogen, phosphate
Lipids contain
carbon and Phosphate
Water polarity
the charges in H2O is unequal
Hydrogen Bond
a weak reaction between hydrogen and very electronegative ions (fluorine, oxygen, nitrogen)
Cohesion
water sticks to itself
Adhesion
Water sticks to other molecules
capillary action
Cohesion and adhesion allow water to climb up spaces like tubes, roots, and between slides
High surface tension
the measure of difficulty to break the water’s surface.
Density
solid water (ice) is less dense allowing Ice to float
High specific heat
The temperature per weight unit needed to change the degree 1 degrees celsius
Universal solvent
water can dissolve just about anything
Hydrophobic
Water hating because it’s polar (vinegar oil)
Hydrophilic
Water loving because it’s non polar
Hydrolysis
Molecule break down when water is added
Dehydration Synthesis
Molecules added together when water is taken away
ACIDIC
has a ph. of below 7
lots of hydrogen ions
give hydrogen ions
BASIC
PH above 7
takes hydrogen
NEUTRAL
has a PH of 7
has an equal amount of H+ and OH-
Carboxyl
COOH (double bonded)
acidic
polar
hydrophilic
Hydroxyl
r- OH-
Acidic
polar
hydrophilic
Carbonyl
O
R-C -R (double bonded)
acidic
polar
hydrophilic
Sulfhydral
R-SH
acidic
polar
hydrophilic
Phosphate
(PO4)3-
acidic
polar
hydrophilic
Amino
NH2
basic
polar
Hydrophilic
Phenyl
C6H5 (ring)
Neutral
nonpolar
hydrophilic
Glycosidic bonds
Bonds between monoscchrides