q2! - sarim

[ArchivalUser]

A 4-month-old baby is brought by his parents to the ER having a fractured rib and subdural hematoma. O/E he has visible developmental delay and thin hair that is colorless and tangled. His serum copper is 4.9 nM (Normal for his age is 11-12 nM). If you suspect hypoactivity of a certain enzyme, in which of the following parts of the cell is the enzyme located?

A. Lysosome
B. Mitochondria
C. Golgi apparatus
D. Extracellular space
E. RER
F. Nucleus

[ArchivalUser]

D - extracellular space. Lysyl oxidase catalyzes the rxn between hydroxylysines on tropocollagen molecules which are found in extracellular space.

[ArchivalUser]

thanks for the questions, sarim

[ArchivalUser]

D
Thanks

[ArchivalUser]

Thanks.

u r very welcome alina

[ArchivalUser]

Thanks kcbutterfly