Life as we speak.

thelifeofapremed:

The brain in love! Happy Valentines Day!

Neurotransmitters are endogenous chemicals that transmit signals from a neuron to a target cell across a synapse. Neurotransmitters are packaged into synaptic vesicles clustered beneath the membrane in the axon terminal, on the presynaptic side of a synapse. They are released into and diffuse across the synaptic cleft, where they bind to specific receptors in the membrane on the postsynaptic side of the synapse. Release of neurotransmitters usually follows arrival of an action potential at the synapse, but may also follow graded electrical potentials. Low level “baseline” release also occurs without electrical stimulation. Many neurotransmitters are synthesized from plentiful and simple precursors, such as amino acids, which are readily available from the diet and which require only a small number of biosynthetic steps to convert.

thelifeofapremed:

The brain in love! Happy Valentines Day!

Neurotransmitters are endogenous chemicals that transmit signals from a neuron to a target cell across a synapse. Neurotransmitters are packaged into synaptic vesicles clustered beneath the membrane in the axon terminal, on the presynaptic side of a synapse. They are released into and diffuse across the synaptic cleft, where they bind to specific receptors in the membrane on the postsynaptic side of the synapse. Release of neurotransmitters usually follows arrival of an action potential at the synapse, but may also follow graded electrical potentials. Low level “baseline” release also occurs without electrical stimulation. Many neurotransmitters are synthesized from plentiful and simple precursors, such as amino acids, which are readily available from the diet and which require only a small number of biosynthetic steps to convert.

thelifeofapremed:

Post-Transcriptional Processing

Only in the Nucleus for Eukaryotes
Primary transcript processed in 3 ways:
1. ADDition of nucleotides
2. DELETion of nucleotides
3. Modification of Nitrogenous Bases
5’ cap and 3’ Poly A tail
snRNP and the Spliceosome of Doom!
INtrons = IN nucleus
EXtrons = EXit the nucleus

DNA TECHNOLOGY

Clone Library = plasmid and replication

Polymerase chain reaction (PCR) : ‘fast’ cloning

Heat to denature
Mix with primers, let cool = primers hybridize
Add polymerase to amplify complementary strands

Southern Blot

1. Chop up DNA
2. Efield to spread out pieces by SIZE
3. Blot it!
4. Add Radioactive DNA or RNA Probe
5. Visualize on radiographic film 
GENETIC CODE
Degenerative – more than one series of nucleotides may code for ANY A.A.
Unambigous = one series of nucleotides = one A.A.
Universal code!
START! AUG
STOP! UAA, UAG, UGA
4^3 = 64 
Ex. protein of 100 A.A. = there are 20^100 possible amino acids sequences for the protein 
taystee keeping it real

taystee keeping it real

(Source: dr0pping--acid)

WHY IS THE DISNEY CHANNEL LOGO ON THIS LOL 

WHY IS THE DISNEY CHANNEL LOGO ON THIS LOL 

(Source: ruinedchildhood, via import-models)

son of a bitch

i have homework already LOL.

1. mastering physics.

2. prepare for physio lab.

3. prepare for physics lab.

4. must email pharmacology professor.

oh my goodness. 

beyonce makes fan sing

OMG HAHAHAHAH SHE SOUNDS SO FUNNY