Forwarded from قناة بايوكمستري .M (مقتدى محمد🇮🇶)
كل_الامسكيوات_المتعلقة_بمحاضرات_د_محمد_الداخلة_بالمد_بعض_التاشيرات.pdf
7.7 MB
هذا الامسكيو شامل ع محاضرات د محمد مادة المد.
lect.1 biosynthesis of fatty acids and Eicosanoids.
Lec_14 (OXIDATION OF FATTY ACIDS : KETOGENESIS )
msq of metabolism of acylglycerol &sphingolipid
lipid transport and storage
lect.1 biosynthesis of fatty acids and Eicosanoids.
Lec_14 (OXIDATION OF FATTY ACIDS : KETOGENESIS )
msq of metabolism of acylglycerol &sphingolipid
lipid transport and storage
❤2
Forwarded from Dr. Shaimaa MCQ
---------------- constitute the majority of lipids in the body.
Anonymous Quiz
82%
Acylglycerols
6%
Cardiolipin
7%
Phosphatidylcholine
4%
Phosphatidylethanolamine
2%
Phosphatidylserine
Forwarded from Dr. Shaimaa MCQ
---------------- are the major lipids in fat deposits and in food.
Anonymous Quiz
86%
Triacylglycerol
5%
Cardiolipin
4%
Phosphatidylcholine
3%
Phosphatidylethanolamine
2%
Phosphatidylserine
Forwarded from Dr. Shaimaa MCQ
The --------------- nature of phospholipids and sphingolipids makes them ideally suitable as the main lipid component of cell membranes.
Anonymous Quiz
7%
polar
10%
non polar
76%
amphipathic
3%
water soluble
5%
water insoluble
Forwarded from Dr. Shaimaa MCQ
Glycosphingolipids that form part of the glycocalyx of the cell surface are important in
Anonymous Quiz
7%
cell adhesion
4%
cell recognition
5%
as receptors for bacterial toxins
5%
as ABO blood group substances
80%
all the above
😍2
Forwarded from Dr. Shaimaa MCQ
Glycerol kinase, is found in significant amounts in all the following except
Anonymous Quiz
11%
liver, kidney
16%
intestine
44%
muscle, adipose tissue
14%
brown adipose tissue
15%
lactating mammary gland
Forwarded from Dr. Shaimaa MCQ
All the following are formed from glycerol-3-phosphate except
Anonymous Quiz
9%
triacylglycerol
4%
phosphatidylcholine
8%
phosphatidylethanolamine
15%
Cardiolipin
63%
plasmalogens, PAF
Forwarded from Dr. Shaimaa MCQ
All the following are not formed from dihydroxyacetone phosphate except
Anonymous Quiz
13%
triacylglycerol
5%
phosphatidylcholine
7%
phosphatidylethanolamine
63%
plasmalogens, platelet activating factor (PAF)
12%
Cardiolipin
❤1
Forwarded from Dr. Shaimaa MCQ
Phosphoglycerols containing an ether link (—C—O—C—), the best known of which are
Anonymous Quiz
59%
plasmalogens, platelet activating factor (PAF)
11%
phosphatidylcholine
11%
phosphatidylethanolamine
13%
triacylglycerols
6%
cardiolipin
Forwarded from Dr. Shaimaa MCQ
----------------- is the common precursor in the biosynthesis of triacylglycerols, many phosphoglycerols, and cardiolipin
Anonymous Quiz
13%
Plasmalogens
9%
Cardiolipin
64%
Phosphatidate
10%
Phosphatidylethanolamine
4%
Phosphatidylserine
Forwarded from Dr. Shaimaa MCQ
If the activity of glycerol kinase is absent or low, as in muscle or adipose tissue, most of the glycerol-3-phosphate is formed from ------------- by glycerol-3-phosphate dehydrogenase
Anonymous Quiz
8%
fructose 1- phosphate
66%
dihydroxyacetone phosphate
11%
Phosphatidate
12%
glucose 6- phosphate
2%
Phosphatidylserine
Forwarded from Dr. Shaimaa MCQ
Phosphatidate is --------------
Anonymous Quiz
19%
1,2-diacylglycerol
11%
triacylglycerol
60%
1,2-diacylglycerol phosphate
5%
monoacylglycerol
5%
monoacylglycerol phosphate
Forwarded from Dr. Shaimaa MCQ
One of the pathways of triacylglycerol biosynthesis is monoacylglycerol pathway which is located in the
Anonymous Quiz
8%
kidney
6%
heart
13%
brain
32%
liver
42%
intestine
Forwarded from Dr. Shaimaa MCQ
---------- molecules of acyl-CoA, formed by the activation of fatty acids by acyl-CoA synthetase, combine with glycerol-3-phosphate to form phosphatidate
Anonymous Quiz
16%
One
7%
Four
14%
Three
59%
Two
4%
intestine
Forwarded from Dr. Shaimaa MCQ
The enzyme ---------------- remove phosphate from phosphatidate to form 1,2-diacylglycerol
Anonymous Quiz
55%
phosphatidate phosphohydrolase (phosphatidate phosphatase (PAP))
11%
glycerol-3-phosphate acyltransferase
12%
1-acylglycerol-3-phosphate acyltransferase
17%
diacylglycerol acyltransferase (DGAT)
5%
monoacylglycerol acyltransferase
Forwarded from Dr. Shaimaa MCQ
In intestinal mucosa, ---------------- converts monoacylglycerol to 1,2-diacylglycerol in the monoacylglycerol pathway.
Anonymous Quiz
14%
phosphatidate phosphohydrolase
8%
glycerol-3-phosphate acyltransferase
13%
1-acylglycerol-3-phosphate acyltransferase
18%
diacylglycerol acyltransferase (DGAT)
48%
monoacylglycerol acyltransferase
Forwarded from Dr. Shaimaa MCQ
In the biosynthesis of phosphatidylcholine and phosphatidylethanolamine, choline or ethanolamine must first be activated by phosphorylation by ------ followed by linkage to CDP.
Anonymous Quiz
16%
GTP
8%
ADP
26%
CTP
8%
AMP
41%
ATP
Forwarded from Dr. Shaimaa MCQ
CDP-choline or CDP-ethanolamine reacts with ------------------- to form either phosphatidylcholine or phosphatidylethanolamine, respectively
Anonymous Quiz
44%
1,2-diacylglycerol
8%
triacylglycerol
35%
1,2-diacylglycerol phosphate
6%
monoacylglycerol
7%
monoacylglycerol phosphate
Forwarded from Dr. Shaimaa MCQ
Phosphatidylserine is formed from ------------------ directly by reaction with serine
Anonymous Quiz
7%
Plasmalogen
8%
Cardiolipin
19%
Phosphatidate
51%
phosphatidylethanolamine
14%
Phosphatidylserine