Card Set Information
Why do we classify organisms (3)?
Name the 8 Classifications
7. Genus (homo)
8. Species (sapiens)
What is prokaryotic?
Usually SINGLE cell
NO membrane bound organelles
What is eukaryotic?
Single or multicellular organisms?
HAVE a nucleus
Have membrane bound organelles
WAY more complex
Are viruses alive?
What are several atoms together called?
Several molecules together is called a ...
Tissue is a collection of ......
doing basically the
thing and look alike
Lots of tissues together is called an
What is an individual organ system?
Same species in a population
What is a community of organ systems?
Other and Multiple populations
Lots of communities in a system is called ?
An ecosystem (living or not)
A biosphere is a group of _____ which life can exsist
What property of water provides the cooling effect of sweating?
High heat vaporization
Suppose that an oxygen atom formed a chemical bond with another oxygen atom.
What would the product of this reaction be called
Monosaccharides, disaccharides, and polysaccharides are all
Why are buffers important to humas?
They stabalize the ph balance
Enzymes are a type of protein, their function is to
The simple unit in proteins is
hydrogen ions when placed in water
H+ can damage cell structures
Bases absorb hydrogen ions and release H+
hydroxide ions OH-
pH 0-14 with 0 being the most ...
0 - acidic
14 - basic
based on a log scale .... pH 6 is .000001 H+ or 1.0x10-6
3 macromolecules are
2 fatty acid chains and phosophate (polar)
Hydrophobic tails (2)
Form a phospholipid bulayer (form sphere because tails fear water)
DNA - ATGC
double stranded genetic material
What is ATP
Its cellular energy. Breaks bonds and releases energy
Why are cells the smallest unit of life?
Bcz of their surface area/volume ratio
diffusion really slows process
What is the function of the plasma membrane?
To regulate what gets in and out (bouncer of club) of cell
Cell Communication "hey how you doin"
-Cell recognition "do you belong?"
The _______ is surrounded by a double membrane with pores and contain genetic
As the surface area of a cell increases the volume ___
increases at a FASTER rate
The three processes when taken together that are called cellular respiration are
glycolysis, citric acid cycle, and the electron transport chain
Exocytosis and endocytosis are accomplished by the _______.
The process whereby small molecules pass through a membrane by
moving from an area of
high concentration to an area of low concentration
Whats found in a
l but not a prokaryotic cell?
Anaerobic respiration requires ___________.
Simple diffusion is movement from ___ concentration to ____ concentration
HIGH concentration to LOW concentration
(internal) inherent energy
Facilliated diffusion is protein needed to move from high to low concentration using a ....
transport protein (no eneregy needed)
Same concentration - same amount is
HYPOTONIC Solution is
amount of stuff than H20
more stuff 98/2 90/10
Active Transport (opposite of diffusion)
Moves from LOW to HIGH (against the concentration gradient)
(smooth - lips)
packages for movement
makes cellular energy
breaks stuff down
(lysol breaks stuff)
Mictrotubles organizing center
Regulates in and out