Description : Increased serum levels of which of the following may be associated with a decreased risk of atherosclerosis? (a) Very low-density lipoproteins (VLDL) (b) Low-density lipoproteins (LDL) (c) Intermediate – density lipoproteins (IDL) (d) High-density lipoproteins (HDL) (e) Cholesterol
Last Answer : Ans: D
Description : Which of the following lipoproteins would contribute to a measurement of plasma cholesterol in a normal individual following a 12 hr fast? (A) Chylomicrons (B) VLDL (C) Both VLDL and LDL (D) LDL
Last Answer : Answer : D
Description : Elevated plasma level of the following projects against atherosclerosis: (A) Chylomicrons (B) VLDL (C) HDL (D) LDL
Last Answer : Answer : C
Description : Increase in blood of this class of lipoproteins is beneficial to ward off coronary heart disease: (A) HDL (B) LDL (C) VLDL (D) IDL
Last Answer : Answer : A
Description : Chylomicron, intermediate density lipoproteins (IDL), low density lipoproteins (LDL) and very low density lipoproteins (VLDL) all are serum lipoproteins. What is the correct ordering of these particles from the lowest to ... , IDL, LDL (C) VLDL, IDL, LDL, Chylomicron (D) Chylomicron, IDL, VLDL, LDL
Last Answer : Answer : B
Description : Very low density lipoproteins are relatively rich in (A) Cholesterol (B) Triacyl glycerol (C) Free fatty acids (D) Phospholipids
Description : Very low density lipoproteins are also known as (A) β-lipoproteins (B) Pre β--lipoproteins (C) α-lipoproteins (D) None of these
Description : Which of the following lipoproteins would contribute to a measurement of plasma cholesterol in a normal person following a 12 hr fast? (A) High density lipoprotiens (B) Low density lipoproteins (C) Chylomicron (D) Chylomicron remnants
Description : Cholesterol circulates in blood stream chiefly as (A) Free cholesterol (B) Ester cholesterol (C) Low density lipoproteins (D) Low density lipoproteins and high density lipoproteins
Description : Low density plasma proteins are rich in (A) Chylomicrons (B) Cholesterol (C) Triglycerides (D) Phospholipids
Description : Changes in serum high density lipoproteins (HDL) are more truly reflected by those of (A) HDL-1 (B) HDL-2 (C) HDL-3 (D) HDLC
Description : Hydrated density of HD lipoproteins is (A) 0.94 gm/ml (B) 0.94–1.006 gm/ml (C) 1.006–1.063 gm/ml (D) 1.063–1.21 gm/ml
Description : The density of lipoproteins increases as the protein content (A) Increases (B) Decreases (C) Highly decreases (D) Slightly and promptly decreases
Description : Hydrated density of (HD) lipoproteins is (A) 0.94 gm/ml (B) 0.94-1.006 gm/ml (C) 1.006-1.063 gm/ml (D) 1.063-1.21 gm/l
Description : β-lipoproteins have the density in the range of (A) 0.95–1.006 (B) 1.006–1.019 (C) 1.019–1.063 (D) 1.063–1.125
Description : Atherosclerosis and coronary heart diseases are associated with the diet: (A) High in total fat and saturated fat (B) Low in protein (C) High in protein (D) High in carbohydrate
Description : A lipoprotein associated with high incidence of coronary atherosclerosis is (A) LDL (B) VLDL (C) IDL (D) HDL
Description : Major lipid class present in chylomicrons is (a) Endogenous triglycerides (b) Cholesterol esters (c) Dietary triglycerides (d) All of the above
Last Answer : Ans: C
Description : Which of the following statements regarding angiogenesis are true? a. Angiogenesis is a seminal biologic event with clinical relevance limited to its effect upon tumor growth b. C-X-C ... c. PF-4 has angiogenic properties d. Sites of atherosclerosis demonstrate chronic angiogenic activity
Last Answer : Answer: b, d An important component of tissue repair and wound healing is the process of angiogenesis. This normal, physiologic process is a local, transient event which is ... between these factors may govern overall angiogenic potential in a variety of physiological and pathophysiological states
Description : Genes are (A) RNA (B) DNA (C) lipoproteins and (D) Chromoproteins
Description : In the blood the vitamin esters are attached to (A) α1-lipoproteins (B) α2-lipoproteins (C) β-lipoproteins (D) γ-lipoproteins
Description : Carotenes are transported with the (A) Minerals (B) Proteins (C) Lipids (D) Lipoproteins
Description : The free fatty acids in blood are (A) Stored in fat depots (B) Mainly bound to β-lipoproteins (C) Mainly bound to serum albumin (D) Metabolically most inactive
Description : The ‘free fatty acids’ (FFA) of plasma: (A) metabolically inert (B) mainly bound to β-lipoproteins (C) stored in the fat (D) mainly bound to serum albumin
Description : The triacyl glycerol present in plasma lipoproteins are hydrolyzed by (A) Linqual lipase (B) Pancreatic lipase (C) Colipase (D) Lipoprotein lipase
Description : Transcortins are (A) Mucoproteins (B) Glycoproteins (C) Metalloproteins (D) Lipoproteins
Description : Which are the cholesterol esters that enter cells through the receptor-mediated endocytosis of lipoproteins hydrolyzed? (A) Endoplasmin reticulum (B) Lysosomes (C) Plasma membrane receptor (D) Mitochondria
Last Answer : B
Description : How lipoproteins are estimated?
Last Answer : Either by electrophoresis or by ultracentrifugation.
Description : Adrneal cortical response is poor in (A) Kwashiorkor (B) Marasmus (C) Fatty liver (D) Atherosclerosis HORMONE METABOLISM 229
Description : The essential fatty acids retard (A) Atherosclerosis (B) Diabetes mellitus (C) Nepritis (D) Oedema
Description : A bland diet is recommended in (A) Peptic ulcer (B) Atherosclerosis (C) Diabetes (D) Liver disease
Description : Two conditions in which gluconeogenesis is increased are (A) Diabetes mellitus and atherosclerosis (B) Fed condition and thyrotoxicosis (C) Diabetes mellitus and Starvation (D) Alcohol intake and cigarette smoking
Last Answer : C
Description : How LDL deposit leads to atherosclerosis?
Last Answer : Oxidised LDL is taken up by macrophages, the macrophages become overloaded with cholesterol esters, and these are then called ìfoam cellsî which form the hallmark of atherosclerotic plaques.
Description : What tissues are affected mostly by atherosclerosis?
Last Answer : Aorta, coronary arteries and cerebral vessels are predominantly affected.
Description : How atherosclerosis started?
Last Answer : The effect is directly proportional to the LDL levels. Free radical induced oxidative damage of LDL will accelerate this process. Oxidised LDLcholesterol is deposited in the subintimal regions of arteries.
Description : The major source of cholesterol in arterial smooth muscle cells is from (A) IDL (B) LDL (C) HDL (D) Chylomicrons FATS AND FATTY ACID METABOLISM 101
Description : This lipoprotein removes cholesterol from the body (A) HDL (B) VLDL (C) IDL (D) Chylomicrons
Description : Most animal tissues contain appreciable amounts of lipid, when in the form of depot fat it consists largely of (A) Cholesterol ester (B) Phosphatides (C) Chylomicrons (D) Triacylglycerol
Description : Chylomicrons are present in fasting blood samples in hyperlipoproteinaemia of following types: (A) Types I and IIa (B) Types IIa and IIb (C) Types I and V (D) Types IV and V
Description : Nascent HDL of intestinal origin acquires Apo C and Apo E from (A) Chylomicrons (B) VLDL (C) LDL (D) HDL of the hepatic origin
Description : VLDL remnant may be converted into (A) VLDL (B) LDL (C) HDL (D) Chylomicrons
Description : Cholesterol is transported from liver to extrahepatic tissues by (A) Chylomicrons (B) VLDL (C) HDL (D) LDL
Description : Triglycerides are transported from liver to extrahepatic tissues by (A) Chylomicrons (B) VLDL (C) HDL (D) LDL
Description : The lipoprotein richest in cholesterol is (A) Chylomicrons (B) VLDL (C) LDL (D) HDL
Description : The major lipid in chylomicrons is (A) Triglycerides (B) Phospholipids (C) Cholesterol (D) Free fatty acids
Description : The highest phospholipids content is found in (A) Chylomicrons (B) VLDL (C) LDL (D) HDL
Description : Apolipoprotiens C-I, C-II and C-III are present in all of the following except (A) Chylomicrons (B) VLDL (C) LDL (D) HDL
Description : Apolipoproteins C-I, C-II and C-III are present in (A) Chylomicrons (B) VLDL (C) HDL (D) All of these
Description : Apolipoprotein B-100 is present in (A) Chylomicrons (B) VLDL only (C) LDL only (D) VLDL and LDL
Description : Apolipoprotein B-48 is present in (A) Chylomicrons (B) VLDL (C) LDL (D) HDL