Answer: D) Lymphatic system Explanation: Lipoproteins are particles that contain triacylglycerol (TAG), cholesterol, phospholipids and amphipathic proteins called apolipoproteins.   The four major types of lipoproteins are 1. chylomicrons, 2. very low-density lipoprotein (VLDL), 3. low-density lipoprotein (LDL), and 4. high-density lipoprotein (HDL).   Chylomicrons are formed in the endoplasmic reticulum in the absorptive cells (enterocytes) of the small intestine.   The function of these lipoproteins is to deliver energy-rich triacylglycerol (TAG) to cells in the body (pink pathway). TAG is stripped from chylomicrons and VLDL through the action of lipoprotein lipase, an enzyme that is found on the surface of endothelial cells. This enzyme digests the TAG to fatty acids and monoglycerides, which can then diffuse into the cell to be oxidized, or in the case of an adipose cell, to be re-synthesized into TAG and stored in the cell.

An Umbrella. Yes, when it is open it can't be fit under a chimney but when it is closed it can be fit down a chimney.

Answer: B) Protista Explanation: The Amoebas belong to a group called Protista. Amoebas are of the animal kingdom subdivision for microscopic organisms - protozoa.

Answer: C) Backup file Explanation: In computing, ".bak" is a filename extension commonly used to signify a backup copy of a file.

Answer: A) Retinol Explanation: Vitamin A is a group of unsaturated nutritional organic compounds that includes retinol, retinal, retinoic acid, and several provitamin A carotenoids. IUPAC Name :: (2E,4E,6E,8E)-3,7-dimethyl-9-(2,6,6-trimethylcyclohexen-1-yl)nona-2,4,6,8-tetraen-1-ol   Vitamin Name - Chemical Name Vitamin A   -     Retinol Vitamin B1  -    Thiamine Vitamin B2  -    Riboflavin Vitamin B3  -    Niacin Vitamin B5  -    Pantothenic acid Vitamin B6  -    Pyridoxin Vitamin B7  -    Biotin Vitamin B9  -    Folic acid Vitamin B12  -   Cyanocobalamin Vitamin C     -   Ascorbic acid Vitamin D     -   Calciferol Vitamin E      -   Tocoferol Vitamin K      -   Phylloquinone and Menaquinones

Answer: B) Karl Marx Explanation: Das Kapital, one of the major works of the 19th-century. Economist and philosopher Karl Marx (1818–83), wrote, in which he expounded his theory of the capitalist system, its dynamism, and its tendencies toward self-destruction.

Answer: B) -2 Explanation: The sum of the oxidation numbers in a compound must equal zero. In the compound hydrogen sulfide, H2S, the two hydrogen atoms have an oxidation number of +1, for a total of +2. Therefore, the oxidation number of sulfur in the compound is -2, and the sum of the oxidation numbers is 0.

Answer: C) Between Explanation: Between the two I prefer tea is the correct sentence with suitable preposition.