Lipid metabolism (Dr. Wael Ibrahim)
Lipid Metabolism Mastery Quiz
Test your knowledge and understanding of lipid metabolism with this comprehensive quiz designed for students and healthcare professionals alike. Whether you're looking to solidify your learning or assess your grasp of key concepts, this quiz covers a wide range of topics related to lipids.
- 25 challenging multiple-choice questions
- Covers both basic and advanced lipid metabolism concepts
- Ideal for exam preparation and review
The most important lipases for infants and patients with pancreatic insufficiency
Acid lipases
Pancreatic lipases
Phospholipases
Intestinal lipase
The end products of TAG digestion is
1-monoacylglycerols
2-monoacylglycerols
Glycerol
Fatty acid
Phospholipases act on phospholipids hydrolyzing them into fatty acids and glycerol
True
False
Chylomicrons are synthesized in
Blood
Liver
Small intestine
Adipose tissues
Dietary triacylglycerol are circulated in blood within
Chylomicron
LDL
VLDL
HDL
Which of the following lipoproteins transport of endogenous TAG from liver to peripheral tissues?
Chylomicron
VLDL
LDL
HDL
Increasing its level in blood is associated with atherosclerosis.
Chylomicron
VLDL
LDL
HDL
Lower blood level of HDL is associated with heart diseases
True
False
All the following stimulate lipogenesis except
Insulin
Glucagon
DHAP
Glycerol-3-phosphate
The key regulatory enzyme of lipolysis
Acyl transferase
Hormone sensitive TAG lipase
Diacyglycerol lipase
Monoacyglycerol lipase
Caffeine inhibits lipolysis by inhibiting phosphodiesterase enzyme
True
False
Excessive lipolysis occurs in conditions where the need for energy is increased
True
False
Before β-oxidation, fatty acid should be activated in the mitochondrial matrix into acyl CoA
True
False
Acyl CoA is transported to mitochondrial matrix by the help of
Creatine
Creatinine
Carnitine
Carotene
Carnitine is γ-hydroxy-β-trimethyl-ammonium butyrate
True
False
During starvation, which of the following is the major source of energy for the body?
Carbohydrates
Proteins
Fatty acids
Glycerol
β- oxidation of fatty acids take place in
Cytosol
Outer mitochondrial membrane
Inner mitochondrial membrane
Mitochondrial Matrix
Which of the following is NAD dependent enzyme
Acyl-CoA dehydrogenase
Enoyl-CoA hydratase
3-hydroxyacyl-CoA dehydrogenase
Thiolase
For each cycle of β-oxidation, the number of carbon atoms is decreased by
1
2
3
4
The numbers of acetyl CoA produced by complete β-oxidation of Palmitic acid (16 C) is
6
8
12
16
Succinyl CoA acts as intermediate of all of the following except
Glycolysis
Kreb’s cycle
Ketolysis
Haem synthysis
Which ketone body is formed first?
Aceto acetic acid
β-hydroxy butyric acid
Acetone
The first enzyme in the ketone body synthesis pathway is
Thiolase
HMG-CoA synthetase
HMG-CoA lyase
Ketone bodies formed in
Blood
Brain
Small intestine
Liver
Deficiency in insulin is a major cause of ketosis
True
False
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