Reading...
Play button
Play button
Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
42 Cards in this Set
- Front
- Back
|
79% of the atmosphere is?
|
N(2) Nitrogen
|
|
|
What is Pasteur Point?
|
When earth gained 1% of oxygen from 0
|
|
|
What form of nitrogen can most things use?
|
ammonia (NH(3)) and nitrate (No(2))
|
|
|
heterotrophs
|
consumers that perform respiration
|
|
|
autotrophs
|
self feeders & producers they can do photosynthesis
|
|
|
photosynthesis
|
6CO(2) + 6H(2)O => C(6)H(12)O(6) + 6O(2)
|
|
|
Respiration
|
C(6)H(12)O(6) + 6O(2) => 6CO(2) + 6H(2)O
|
|
|
Structural Bond
|
H-H
N-N C-C |
|
|
Molecular Form
|
H(2)
N(2) C(2) |
|
|
Amino Acids/ Proteins
|
IMPORTANT
|
|
|
What can break nitrogen bonds?
|
lightning
|
|
|
what organisms are capable of break up nitrogen on their own?
|
blue green algae and bacteria and a few green algae
|
|
|
What is Rhizbium?
and what does it do? |
they are a bacterium that can convert Nitrogen bonds into something usable.
**this is symbiosis mutualism which means that both the root and the rhizbium benefit. |
|
|
HMD
|
hyline membrane disease
|
|
|
what is hyline membrane disorder?
|
newborn premature babies cannot exhale
|
|
|
cation
|
positive
|
|
|
anion
|
negative
|
|
|
composition of the atmosphere
|
79% Nitrogen & 21% oygen
|
|
|
Name three chemical bonds
|
Hydrogen
Ionic Covalent |
|
|
What dissolves well in water?
|
polar & ionic
|
|
|
non-polar
|
will not dissolve (not charged)
the sharing of electrons is about equal |
|
|
polar
|
one hogs the electrons
|
|
|
isotope
|
atoms of an element with more neutrons than normal thus making the element unstable.
|
|
|
Intramolecular
|
sharing within a molecule
|
|
|
Intermolecular
|
sharing with another molecule
|
|
|
3 sources of error in science:
|
1. human error
2. not testing hypothesis enough 3. rare: fraud |
|
|
first assumption
|
all events can be explained in laws and theories.
|
|
|
second assumption
|
humans are capable of formulating and understanding laws and theories.
|
|
|
Covalent Bonds
|
share valence electrons
|
|
|
Ionic Bonds
|
Transfer electrons
|
|
|
pH goes down
|
acidic
|
|
|
pH goes up
|
basic
|
|
|
dissociate
|
ionic bonds put into water break up into original elements.
|
|
|
What are the 4 Inorganic compounds important to life?
|
H(2)O CO(2) O(2) NH(3)
|
|
|
CO(2)
|
green house gases
important role in pH of organisms |
|
|
NH(3)
|
protein catabolism
ammonia toxic for many organism (but a little is good!) |
|
|
how does our bodies get rid of excess ammonia?
|
blood to liver, liver to urine
|
|
|
pure research?
|
to gain knowledge
|
|
|
applied research?
|
specific goal in mind
|
|
|
What are the 4 qualities of a good hypothesis?
|
testable
falsifiable predictive repeatable |
|
|
What is a hypothesis?
|
initial explanation for observation
|
|
|
research?
|
systematically collecting observations
|
