hemoglobin Flashcards
1 gram of hgb can carry ____ml o oxygen
a. 1.34 ml
b. 3.47 ml
c. 2.24 ml
- 34 ml
1 gram of hgb can carry a constant ______mg of Iron
a. 1.34 mg
b. 3.47 mg
c. 2. 27 mg
3.47 mg
refers to the amino acid sequence of polypeptide chains
a. primary structure
b. secondary structure
c. tertiary structure
d. quaternary structure
primary structure
refers to the arrangement of helices and non helices
a. primary structure
b. secondary structure
c. tertiary structure
d. quaternary structure
secondary structure
refers to the arrangement of the helices into pretzel like configuration
a. primary structure
b. secondary structure
c. tertiary structure
d. quaternary structure
tertiary structure
complete hemoglobin molecule structure
a. primary structure
b. secondary structure
c. tertiary structure
d. quaternary structure
quaternary structure
what is the ratio of pyrrole ring to ferrous iron in a single heme molecule?
a. 1:4
b. 4:1
c. 1:1
4:1
how many pyrrole rings does a 1 heme molecule have?
a. 5
b. 4
c. 3
4
how man ferrous does a 1 heme have
a. 1
b. 2
c. 3
1
heme consists of a ring of carbon, hydrogen and nitrogen atoms called?
a. ferrous iron
b. porphyria
c. protoporphyrin IX
heme consists of a ring of carbon, hydrogen and nitrogen atoms called PROTOPORPHYRIN IX with a central atom called DIVALENT FERROUS IRON (Fe2+)
what is the site of production of GLobin chain?
a. mitochondria
b. ribosomes
c. reticulocyte
ribosomes
what is the site for heme synthesis
a. mitochondria
b. ribosome
mitochondria of normoblasts
how many % does hemoglobin synthesis occur in immature nrbc
a. 35%
b. 10%
c. 65%
65%
how many % does hemoglobin synthesis occur in reticulocytes
a. 35%
b. 10%
c. 65%
35%
it regulates the transport iron from enterocyte into the circulation
a. hepcidin
b. ferroportin (Fpn1)
c. divalent monotransporter 1(DMT)
hepcidin - it regulates the transport iron from enterocyte into the circulation BY BINDING THROUGH FERROPORTIN
it is the master regulatory hormone of systhemic iron metabolism
a. hepcidin
b. ferroportin (Fpn1)
c. divalent monotransporter 1(DMT)
hepcidin
it transport from intestinal lumen to enterocytes
a. hepcidin
b. ferroportin (Fpn1)
c. divalent monotransporter 1(DMT)
dmt
most of iron is located at
a. rbc
b. plasma
c. hemoglobin
hemoglobin
most abundant transition metal in the body
a. hepcidin
b. iron
c. hemoglobin
iron
in the plasma, ferric iron binds to transferrin which delivered into the cells or stored in the bone marrow by
a. trasferrin
b. ferroportin (Fpn1)
c. divalent monotransporter 1(DMT)
transferrin receptor
storage form of iron that is water soluble
a. ferritin
b. hemosiderin
ferritin
major storage form of iron
a. ferritin
b. hemosiderin
c. ferroportin
ferritin
ferroPORTin - -taga sundo
port - terminal
seen in tensed state
a. oxyhemoglobin
b. deoxyhemoglobin
c. carboxyhemoglobin
deoxyhemoglobin
(pag tensed DE ako okay)
oxyhemoglobin - seen in relaxed state
(pag naka relax OKS lang)
it can be seen in cases of bacteremia caused by Clostridium perfringens
a. carboxyhgb
b. methemoglbn
c. sulfehgbn
sulfehgbn
