notes that I didn't know- quick review Flashcards
transporter of fat solube vitamins
via protein
transporter of water soluble vitamins
via plasma
non pro vit A is ____
carotenoids
breakdown of B carotene in the S.I via ____ enzyme
B-carotene dioxygenase
Night blindness is a deficiency of _____
11 cis retinal
Vit A deficiency will deplete ___ in the retina
retinyl ester
Retinal is bound to ____ and needs the mineral ___ to bind
bound to RENTINAL BINDING PROTEIN
need: Zn+
fxn of retinoic acid
differentiation of cells in cornea and conjunctiva
2 supp forms of Vit A
Retinyl palmitate
retinyl acetate
Rhodopsin = ____ + ____
11 cis retinal + opsin
An insufficient intake of Vit A will cause ____
Protein NRG malnutrition (PEM)
3 sx of Deficiency of Vit A
xeropthalmia
keratinization (toad skin)
follicular hyperkeratosis
Excess Vit A will cause ___ in fetal development
hydroencephalitis
Name the castcade of VitD3 formation
7-dehydrocholesterol –> cholecalciferol –> (liver) 25- hydroxy. –> (BAF- kidney) 1,25 (OH)2D
Vit D BAF
1,25 (OH)2D
Name Ca+ binding protein :____
FXN of it:____
Calbindin
stim. by : kidney 1,25(OH)2D
FXN: reabsorption of Ca+2 from the urine
How does PTH help low serum levels of VitD
Low serum level of VitD –> trigger PTH–> 1-hydroxylase –> form more 1,25 (OH)2D –> release Ca+2 into serum
High serum levels cause 1,25(OH)2D to be broken down into _____
24,25 (OH)2D by 24- hydroxylase
fxn of Calcitonin with Vit D
Fxn of calbindin with Vit D
calcitonin : decr serum Ca+2 levels
Calbindin: incr erum Ca+2 levels
(3) sx of excess VitD
Polyuria
polydipsia (vit D controls Insulin levels)
Ca+2 of soft tis
(2) vitamers of Vit E
(4) tocopherol
(4) tocotrienol
d-form
(4) fxn of Vit E
antioxidation
CoQ
Cytochrome P-450
Malondialldhyde
location of vit B
mitocondria
absorption of Vit E is ___
Storage location____
passive
adipose
deficiency of Vit E is : ____
abetalipoproteinemia
– there is no B-apoprotein
K1: ___
K2: __
K3: ____
K1: green veggies
K2: fermented
K3: drug
endogenous form of Vit K is made in the ___
large intestines
coenyme for vit K
its fxn:____
gamma-glutamic carboxylase
fxn: binds Ca+2 to bone
Which two vit are needed to make “carboxylases”
Vit B7
Vit K
Mineral needed for Vit K
Mg+
vitA needs Zn+
Excess Vit K causes (3)
hemolysis
hyperbilirubinemia
K interference w/ CoQ (vit E)
Excess K will interfer with ____
CoQ (vitE)
Lipids ___ fat soluble vit. absorption
incr
Vit A incr receptors for ___
1,25 (OH)2D
and enhances it
Vit E & ____ enhance each other & are antioxidants
Se
Major micronutrients :____mg per day
trace micronutrients:_____mg per day
major >100mg
Trace<100mg
(4) major micronutrients
Ca+2, P, Na, K
def: ______: body part measurement
anthropometry
fat digestion occurs in the ____
by the ___ enzyme
location: SI
by the : pancreatic lipase