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Bio Lectures 1-8
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51
Biology
Undergraduate 1
08/23/2013

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Term
hydrophobic
Definition
won't mix w/ water b/c its nonpolar
Term
hydroxyl/alcohols

-oh & -ho
Definition
structural format:

R- OH
Term
aldehyde/aldehydes

-CHO
Definition
structual format:
=O
R-C
-H
Term
Keto/Ketones

\
CO
/
Definition
O
=
R-C-R
Term
carboxyl/carboxylic acids

-COOH
Definition
O
=
R-C
\OH
Term
Amino/Amines
-NH2
Definition
H
/
R-N
\
H
Term
Phosphate/organic phosphates

-OPO\/3/\2-
Definition
O
=
R-O-P-O-
-
O-
Term
sulfhydryl/thoils

-SH
Definition
R-SH
Term
What makes up an Amino acid?
Definition
An Amine w/carboxylic acid attached to it
Term
Describe the dehydration synthesis
Definition
HO-H HO-H <-- Take away H2O to create polymer

HO-H
Term
Describe hydrolysis
Definition
add water to create monomer
HO-H

HO-H HO-H
Term
Which is the first carbon?
Definition
The one closest to the function group
Term
starch
Definition
1-4 linkage of alpha glucose monomers
Term
cellulose
Definition
1-4 linkage of beta glucose monomers
Term
branch point
Definition
a 1-6 linkage where a new 1-4 linkage chain can be attached
Term
How do plants store glucose?
Definition
amalose & amalopectin
Term
How do animals store glucose?
Definition
As glycogen
Term
What characteristics does cellulose have?
Definition
Not a helical structure, instead forms sheets
Term
chitin
Definition
Modified version of cellulose w/ amine groups
Term
pepidoglycan
Definition
cellulose structure w/proteins
Term
glycolysis
Definition
the process of breaking down sugar
Term
phospholipid
Definition
glycerol + 2 fatty acids + phosphorus group
Term
What is the difference between DNA & RNA (Chemically)
Definition
DNA- O removed
RNA_ O Present
Term
Which bond do DNA have?
Definition
Thymine
Adenine
Cytosine
Guanine
Term
Which bonds do RNA have?
Definition
Thymine
Adenine
Cytosine
Uracil
Term
Base pairing
Definition
Hydrogen bonds connection bases:
Guanine w/ Cytosine
Adenine w/ Thymine
Term
telomere
Definition
ends of chromosomes, they get shorter with each replication
Term
Origin of replication
Definition
*ORI
where replication begins
Term
How is DNA read
Definition
As human- from 5' to 3'
Making new strand 5' to 3'
As enzyme 3' to 5'
Term
Process of replication
Definition
1) double helix opens @ ORI
2) Proteins keep it open
3) enzymes make new chain
Term
What are the original and new DNA strands called?
Definition
Original- Parent strands
New- Daughter strands
Term
ligation
Definition
sealing of strands of replicated matrial
Term
Exon
Definition
stretch of DNA that codes for protein
Term
intron
Definition
Stretch of DNA that does not code for protein
Term
promoter
Definition
tells proteins which direction to go
Term
Enhancer
Definition
enhance the transcription rate
Term
silencer
Definition
says not to do anything
Term
hemoglobin
Definition
carries oxygen through blood stream
Term
splicing
Definition
process of removing introns for mRNA
Term
transcription
Definition
turning DNA into RNA
Term
translational control
Definition
going from nucleic acid to protein
Term
reverse transcription
Definition
making DNA from RNA
Term
How do amino acids link?
Definition
Amine group links to Carboxyl group
Term
3 groups of amino acids
Definition
1) electrically charged
2)polar
3)nonpolar
Term
Electrically charged Amino Acids
Definition
Acidics:
aspartic acid- ASP
Glutamic acid- GLU

Basic:
Lysine - LYS
Arginine- ARG
Histidine- HIS
Term
Non polar Amino Acids
Definition
Glycine- GLY
Alanine- ALA
Valine- VAL
Laucine- LEU
Isoleucine- ILE
Methionine- MET
Phenylalanine- PHE
Tryptophan- TRP
Proline- PRO
Term
Polar Amino Acids
Definition
Serine - SER
Threonine- THR
Cysteine- CYS
Tyrosine- TYR
Asparagine- ASP
Glutamine- GLN
Term
tRNA
Definition
a strand of RNA that's been modified & attached w/ an amino acid
Term
Codons
Definition
a group of 3 bases (TACU) on mRNA
Term
anticodon
Definition
group of 3 bases (TACU) on tRNA
Term
Which is the starting codon & corresponding Amino Acid?
Definition
Codon- AUG
Corresponds with Methionine (MET)
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