Question

The below statements are true/False?

963.Sphingolipids play an important role in cardiac tissues.

962.Lung surfactant is a kind of phospholipid.

961.Acyl Carrier Protein (ACP) is specially used for fatty acid synthesis.

960.Carnitine is a carrier for fatty acid for transportation from the cytosol to the mitochondrial matrix.

959.Both even- and odd-carbon chain fatty acids are catabolized by beta-oxidation.

958.LDL uptake in cells is mediated by receptors.

957.Total cholesterol content in HDL is higher than that of LDL.

Answer 1

963.Sphingolipids play an important role in cardiac tissues.- true

Explanation- The increase in risk of cardiovascular and metabolic diseases has been described in some genetic disorders related to sphingolipid metabolism alterations.

962.Lung surfactant is a kind of phospholipid.- true

Explanation- Pulmonary surfactant is a complex mixture of phospholipids and proteins that functions to reduce surface tension at the alveolar air interface preventing atelectasis.

961.Acyl Carrier Protein (ACP) is specially used for fatty acid synthesis.- true

Explanation- Acyl carrier protein (ACP) is a component of the fatty acid biosynthesis cycle. ACP catalyzes the addition of a thioester to a phosphopantetheine moiety..

960.Carnitine is a carrier for fatty acid for transportation from the cytosol to the mitochondrial matrix.- true

Explanation- The inner mitochondrial membrane is impermeable to fatty acids and a specialized carnitine carrier system operates to transport activated fatty acids from cytosol to mitochondria.

959.Both even- and odd-carbon chain fatty acids are catabolized by beta-oxidation. - true

Explanation- The reaction pathway differs depending on whether the double bond is at an even- or odd-numbered carbon position. β -Oxidation occurs until a double bond of the unsaturated fatty acid is near the carboxyl end of the fatty acyl chain.

958.LDL uptake in cells is mediated by receptors.- true

Explanation- During receptor-mediated endocytosis various extracellular nutritional and regulatory molecules bind to plasma membrane receptors and rapidly enter target cells. In one system of receptor-mediated endocytosis, namely the one for plasma low density lipoprotein (LDL), the receptor functions to internalize LDL.

957.Total cholesterol content in HDL is higher than that of LDL.- false

Explanation- Cholesterol numbers are measured in milligrams per deciliter (mg/dL). LDL has less than 100mg/dL and HDL has More than 45mg/dL of cholesterol

Ps- An upvote would be highly appreciated