BC Lipid Metabolism: Synthesis and Degradation

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Which organelle is responsible for the synthesis of fatty acids?

Endoplasmic reticulum

Mitochondria

Cytosol (correct)

Golgi apparatus

What is the end product of fatty acid biosynthesis?

Acetyl CoA

Palmitate (correct)

Malonyl CoA

Citrate

Which enzyme is responsible for the formation of malonyl CoA?

Acetyl CoA carboxylase (ACC) (correct)

Citrate Transport System

Fatty Acid Synthase (FAS)

NADPH

What is the function of the Citrate Transport System in fatty acid biosynthesis?

Transport of Acetyl CoA into the cytosol Signup and view all the answers

Which molecule is required for the initiation of fatty acid biosynthesis?

Acetyl CoA Signup and view all the answers

What is the main source of Acetyl CoA for fatty acid biosynthesis?

Glycolysis Signup and view all the answers

What is the role of Fatty Acid Synthase (FAS) in fatty acid biosynthesis?

Assembly of the fatty acid chain Signup and view all the answers

Which enzyme is responsible for the formation of Malonyl CoA from Acetyl CoA in fatty acid synthesis?

Acetyl-CoA Carboxylase Signup and view all the answers

What is the major source of NADPH for fatty acid biosynthesis?

Pentose Phosphate Pathway (PPP) Signup and view all the answers

Which enzyme is responsible for the synthesis of the fatty acid chain in mammalian cells?

Fatty Acid Synthase Signup and view all the answers

Which subunit of Fatty Acid Synthase (FAS) contains a Phosphopantetheine prosthetic group?

Acyl Carrier Protein (ACP) Signup and view all the answers

Which step in fatty acid synthesis is considered the committed step?

Formation of Malonyl CoA from Acetyl CoA Signup and view all the answers

How many turns of the fatty acid synthesis cycle are required to synthesize a C16 palmitate?

7 Signup and view all the answers

What is the net equation for fatty acid synthesis?

Acetyl-CoA + Malonyl-CoA + ATP + NADPH + H+ -> Palmitate + CoA + ADP + Pi + NADP+ + CO2 + H2O Signup and view all the answers

Which enzyme is responsible for the mobilization of fatty acids from triacylglycerols?

Adipose triacylglycerol lipase (ATGL) Signup and view all the answers

Which organelle is primarily involved in the oxidation of fatty acids?

Mitochondria Signup and view all the answers

Which carbon is oxidized through a series of reactions during fatty acid oxidation?

Beta carbon Signup and view all the answers

Which pathway involves the sequential removal of 2 carbon units (Acetyl CoA) from the carboxyl terminal of fatty acids?

Mitochondrial beta-oxidation Signup and view all the answers

Which pathway involves the oxidation of very long (17-26 carbon) fatty acids beginning in peroxisomes?

Peroxisomal beta-oxidation Signup and view all the answers

Which pathway involves the oxidation of the carboxyl terminal carbon, releasing it as CO2?

Alpha-oxidation Signup and view all the answers

Which pathway involves the oxidation of the omega carbon to form a dicarboxylic acid?

Omega-oxidation Signup and view all the answers

Which statement is true about the storage of fatty acids compared to carbohydrates?

Fatty acids are stored in a more reduced state than carbohydrates Signup and view all the answers

What is the primary source of energy in most organisms?

Stored lipids Signup and view all the answers

Which enzyme is responsible for the synthesis of longer fatty acid chains in the ER or microsomes and in mitochondria?

Microsomal Δ9 Desaturase Signup and view all the answers

Which of the following is true about the nomenclature of fatty acids?

In mammals, double bonds can be introduced only up to the Δ9 position Signup and view all the answers

Which of the following is true about essential fatty acids?

They must be obtained from plant sources Signup and view all the answers

Which enzyme is required for the synthesis of long chain polyunsaturated fatty acids in eukaryotes?

Elongase Signup and view all the answers

What is the main factor regulating the rate of lipogenesis?

Excess glucose Signup and view all the answers

What happens to fats during starvation or in diabetes patients?

They are broken down into fatty acids for energy production Signup and view all the answers

What triggers the secretion of epinephrine and glucagon for the mobilization of fats from adipose tissues?

Low energy/blood glucose Signup and view all the answers

BC Lipid Metabolism: Synthesis and Degradation

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Questions and Answers

Which organelle is responsible for the synthesis of fatty acids?

What is the end product of fatty acid biosynthesis?

Which enzyme is responsible for the formation of malonyl CoA?

What is the function of the Citrate Transport System in fatty acid biosynthesis?

Which molecule is required for the initiation of fatty acid biosynthesis?

What is the main source of Acetyl CoA for fatty acid biosynthesis?

What is the role of Fatty Acid Synthase (FAS) in fatty acid biosynthesis?

Which enzyme is responsible for the formation of Malonyl CoA from Acetyl CoA in fatty acid synthesis?

What is the major source of NADPH for fatty acid biosynthesis?

Which enzyme is responsible for the synthesis of the fatty acid chain in mammalian cells?

Which subunit of Fatty Acid Synthase (FAS) contains a Phosphopantetheine prosthetic group?

Which step in fatty acid synthesis is considered the committed step?

How many turns of the fatty acid synthesis cycle are required to synthesize a C16 palmitate?

What is the net equation for fatty acid synthesis?

Which enzyme is responsible for the mobilization of fatty acids from triacylglycerols?

Which organelle is primarily involved in the oxidation of fatty acids?

Which carbon is oxidized through a series of reactions during fatty acid oxidation?

Which pathway involves the sequential removal of 2 carbon units (Acetyl CoA) from the carboxyl terminal of fatty acids?

Which pathway involves the oxidation of very long (17-26 carbon) fatty acids beginning in peroxisomes?

Which pathway involves the oxidation of the carboxyl terminal carbon, releasing it as CO2?

Which pathway involves the oxidation of the omega carbon to form a dicarboxylic acid?

Which statement is true about the storage of fatty acids compared to carbohydrates?

What is the primary source of energy in most organisms?

Which enzyme is responsible for the synthesis of longer fatty acid chains in the ER or microsomes and in mitochondria?

Which of the following is true about the nomenclature of fatty acids?

Which of the following is true about essential fatty acids?

Which enzyme is required for the synthesis of long chain polyunsaturated fatty acids in eukaryotes?

What is the main factor regulating the rate of lipogenesis?

What happens to fats during starvation or in diabetes patients?

What triggers the secretion of epinephrine and glucagon for the mobilization of fats from adipose tissues?

More Like This

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Upgrade to continue

BC Lipid Metabolism: Synthesis and Degradation

Choose a study mode

Podcast

Questions and Answers

Which organelle is responsible for the synthesis of fatty acids?

What is the end product of fatty acid biosynthesis?

Which enzyme is responsible for the formation of malonyl CoA?

What is the function of the Citrate Transport System in fatty acid biosynthesis?

Which molecule is required for the initiation of fatty acid biosynthesis?

What is the main source of Acetyl CoA for fatty acid biosynthesis?

What is the role of Fatty Acid Synthase (FAS) in fatty acid biosynthesis?

Which enzyme is responsible for the formation of Malonyl CoA from Acetyl CoA in fatty acid synthesis?

What is the major source of NADPH for fatty acid biosynthesis?

Which enzyme is responsible for the synthesis of the fatty acid chain in mammalian cells?

Which subunit of Fatty Acid Synthase (FAS) contains a Phosphopantetheine prosthetic group?

Which step in fatty acid synthesis is considered the committed step?

How many turns of the fatty acid synthesis cycle are required to synthesize a C16 palmitate?

What is the net equation for fatty acid synthesis?

Which enzyme is responsible for the mobilization of fatty acids from triacylglycerols?

Which organelle is primarily involved in the oxidation of fatty acids?

Which carbon is oxidized through a series of reactions during fatty acid oxidation?

Which pathway involves the sequential removal of 2 carbon units (Acetyl CoA) from the carboxyl terminal of fatty acids?

Which pathway involves the oxidation of very long (17-26 carbon) fatty acids beginning in peroxisomes?

Which pathway involves the oxidation of the carboxyl terminal carbon, releasing it as CO2?

Which pathway involves the oxidation of the omega carbon to form a dicarboxylic acid?

Which statement is true about the storage of fatty acids compared to carbohydrates?

What is the primary source of energy in most organisms?

Which enzyme is responsible for the synthesis of longer fatty acid chains in the ER or microsomes and in mitochondria?

Which of the following is true about the nomenclature of fatty acids?

Which of the following is true about essential fatty acids?

Which enzyme is required for the synthesis of long chain polyunsaturated fatty acids in eukaryotes?

What is the main factor regulating the rate of lipogenesis?

What happens to fats during starvation or in diabetes patients?

What triggers the secretion of epinephrine and glucagon for the mobilization of fats from adipose tissues?

More Like This

BC Pentose Phosphate Pathway

BC Lipid Chemistry and Structure

H1 &amp; BC hydro services connection

BC Ch.3 Definitions

H1 & BC hydro services connection