Which enzyme initiates the digestion of triacylglycerols in the stomach?

Lingual Lipase

True or False: Pancreatic lipase requires colipase for its activation.

True

Fill in the blank: The primary lipids in our diet are ______, which account for more than 90% of dietary lipids.

Triacylglycerols

What is the role of bile acids in lipid digestion?

Bile acids assist in transporting digestion products through the aqueous environment of the intestinal lumen.

Riddle: I help transport fat-soluble vitamins and am crucial for lipid absorption, but I am not a lipid myself. What am I?

Bile acid

Which enzyme is responsible for converting glycerol to glycerol 3-phosphate?

Glycerol Kinase

Fill in the blank: Triacylglycerol is synthesized primarily in the ______.

Liver

Which enzyme is the rate-limiting step in fatty acid synthesis?

Acetyl CoA Carboxylase

True or False: Lipolysis mainly occurs in the liver.

False. Most lipolysis occurs in adipose tissue.

What is the primary product of beta-oxidation of fatty acids?

Acetyl CoA

Fill in the blank: The enzyme that catalyzes the final step of beta-oxidation is called ______.

Thiolase

Which hormone activates hormone-sensitive lipase?

Glucagon

Riddle: I am a fatty acid derivative, helping to transport cholesterol, and my levels are increased by insulin. What am I?

Chylomicron

What are the main types of lipoproteins classified by their density?

Chylomicrons, VLDL, LDL, HDL

True or False: LDL is known as 'good cholesterol' because it helps remove cholesterol from tissues.

False. LDL is known as 'bad cholesterol' because it can deposit cholesterol in tissues.

Fill in the blank: The enzyme that converts Acetyl CoA to Malonyl CoA is ______.

Acetyl CoA Carboxylase

What is the primary function of HDL in lipid metabolism?

Reverse cholesterol transport

Riddle: I am produced during prolonged fasting, I can fuel the brain, but I’m not glucose. What am I?

Ketone bodies

Which apolipoprotein is primarily involved in the metabolism of LDL?

Apo B100

Fill in the blank: The synthesis of cholesterol primarily occurs in the ______.

Liver

True or False: Statins function by enhancing the activity of HMG CoA reductase.

False. Statins inhibit HMG CoA reductase.

What is the effect of insulin on Acetyl CoA Carboxylase?

Insulin activates Acetyl CoA Carboxylase by dephosphorylating it.

Fill in the blank: The absence of ______ leads to the accumulation of very long-chain fatty acids.

Peroxisomes

Riddle: I am a genetic disorder characterized by low levels of HDL and the accumulation of cholesterol in cells. What am I?

Tangier Disease

What is the role of LCAT in lipid metabolism?

LCAT converts free cholesterol into cholesteryl esters.

Fill in the blank: The process of synthesizing fatty acids is often referred to as ______.

Lipogenesis

True or False: Ketogenesis occurs in the mitochondria of adipose tissue.

False. Ketogenesis occurs in the liver.

How does glucagon affect lipolysis in adipose tissue?

Glucagon stimulates lipolysis by activating hormone-sensitive lipase.

Which type of fatty acid cannot be synthesized by the human body and must be obtained through diet?

Essential fatty acids

Fill in the blank: The main function of bile salts is to emulsify ______.

Fats