Hands on Learning topics Flashcards
alpha glucose
hydroxyls on the same side
beta glucose
hydroxyls on opposite sides
bond formed by dehydration synthesis that unites two glucose monomers?
glycosidic linkage 1,4 (at 1 and 4 carbon)
non polar R-Groups
Valine, phenylanine
sequence of tripeptide
(N-terminus) cysteine : Threonine : Alanine (C-terminus)
cysteine is a weak __ amino acid due to the __ group on the side chain
polar; sulfhydryl
Threonine is a ___ amino acid due to the ___ group on the side chain
polar; hydroxyl
Alanine is a ____ amino acid due to the ____ group on the side chain
non polar; methyl
What happens why you hydrolyze valine from a polypeptide?
a water molecule is added to the reaction
fatty acids
consist of a long chain of hydrocarbons with a carboxyl group at the end
trans and cis isomers have….
C=C; cis causes bending; trans remains straight
dehydration synthesis
causes water molecules to be removed from the reaction
phosphate group
consists of a phosphorus atom surrounded by oxygen and hydrogen
ATP (adenosine triphosphate
a modified RNA nucleotide
phosphoanhydride bond
forms between consecutive phosphate groups in ATP; when broken, creates a lot of energyy
hydrolysis of ATP
ATP + H2O = ADP + P(i) = AMP +P(i) + energy
In a DNA strand, to what number carbon does the nitrogenous bas attach?
1’ Carbon
in a DNA strand, to what number carbon does the hydroxyl group attach to?
3’ carbon
In a DNA strand, to what number carbon does the phosphate group connect to?
5’ carbon
DNA strands will undergo complementary bonding such that a pyrimidine is always ____ bonded to purine
hydrogen
what kind of bond is formed between purines and pyrimidines along the phosphate-sugar backbone of the DNA strands?
phosphodiester
the atomic number equals the number of _____ and is found as the subscript to the left of the symbol for an element
protons
the mass number equals the atomic number plus the number of ____ and is found as the superscript to the left of the symbol for an element
neutrons
in a neutral atom, the number of protons equals the number of _____
electrons
isotopes
atoms of an element that have the same atomic number but have differing mass numbers
unstable isotopes
emit nuclear radiation as the parent isotope decays into the daughter isotope
half-life
the time it takes for the proportion of the parent isotope to decrease by half
The amount of remaining C-14 (half-life: 5700 years) found in a cave painting in France is about 3.125%. How many years ago did the artists make these drawing?
28,300 years ago
