Brown Adipose Tissue

is brown because of the presence of large numbers of mitochondria (high concentrations of cytochromes), with heme groups that are strong absorbers of visible 

TLS Online TPP Program

#Id: 6511

#Unit 7. System Physiology – Animal

Rate-limiting step in synthesis of catecholamines:  Tyrosine is converted to dihydroxy-phenylalanine (DOPA) by tyrosine hydroxylase

TLS Online TPP Program

#Id: 6512

#Unit 7. System Physiology – Animal

DOPA is converted to dopamine in the cytoplasm of the cells by DOPA decarboxylase (amino acid decarboxylase)

TLS Online TPP Program

#Id: 6513

#Unit 7. System Physiology – Animal

DOPA is converted to dopamine in the cytoplasm of the cells by DOPA decarboxylase (amino acid decarboxylase)

TLS Online TPP Program

#Id: 6514

#Unit 7. System Physiology – Animal

Dopamine is converted to norepinephrine by dopamine β -hydroxylase

TLS Online TPP Program

#Id: 6515

#Unit 7. System Physiology – Animal

Norepinephrine is the only small-molecule transmitter that is synthesized in synaptic vesicles

TLS Online TPP Program

#Id: 6516

#Unit 7. System Physiology – Animal

Epinephrine is formed by methylation of norepinephrine