Morphologie

Question 1

Quelle est l’une des fonctions métaboliques les plus importantes du foie

Answer 1

Glycogen storage

Question 2

Que sont les fonctions du foie

Answer 2

Assimilation de nutriments
Production de bile
Detoxification
Process vitamin, prot, plasma

Question 3

Que sont les structures différentes du foie

Answer 3

Hepatocyte
Glycogen
Fats storage
Synosoid
Bile ducts

Question 4

Dans les branchies où se trouvent les chlorides cells

Answer 4

Junction between primary and secondary lamellae

Question 5

dans le doce river, comment a pu évolul la bio disponibilité des metaux aux cours des années

Answer 5

The rupture of the Fundãod am(Samarco mining company)led to the formation of a
red layer containing Fe-oxide(and associated metals) in the estuary Although the Fe-oxides were enriched in trace metals,the bioavailable contents of the trace metals were low.However,
an increase inorganic matter content in the soil by plantactivity(1) may stimulate the reduction of Feoxides(3 )and the consequent release of tracemetals to the water body(aqueous
phase).Additionally,increasing vegetation cover may intensify the release of organic ligands(2),which may favor the incorporation of tracemetals
in to the plant biomass
(phytoextraction) and/or also their mobilization towards the waterbody(4).

Question 6

what are trace metals ?

Answer 6

trace metal refers to biometals such as iron, copper, zinc, and manganese that are present in low concentrations but play essential roles in various activities within the body.

Question 7

que sont les ligands organiques

Answer 7

In coordination chemistry, a ligand [a] is an ion or molecule with a functional group that binds to a central metal atom to form a coordination complex.. Les ligands organiques sont définis comme des molécules qui peuvent se lier et former un complexe stable avec des traces de métaux dans la phase aqueuse dissoute

Question 8

Que dépend de la disponibilité des metaux

Answer 8

the availability of these metals to the biota is governed by speciation, whereby trace metals are bound by organic ligands that may reduce or enhance metal bioavailability, depending on the metal and the resulting metal-ligand complex.