Which of the following statements about :starch and glycogen is false Amylose is unbranched, amylopectin and glycogen contain many (alpha 1→6)branches Both are polymers made of glucose units only Glycogen is more extensively branched than starch Both serve primarily as structural elements in cell walls
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A:
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- A phospholipid containsa. three fatty acids bound to glycerolb. three fatty acids, a glycerol, and a phosphatec. two fatty acids and a phosphate bound to glycerold. three cholesterol molecules bound to glycerolWhich of the following is not an extracellular matrix roleof carbohydrates?a. protect an insect’s internal organs from externaltraumab. prevent plant cells from lysing after the plant iswateredc. maintain the shape of a fungal spored. provide energy for muscle movementWhich of the following is a storage form of lipid?a) Glycolipidb) Phospholipidc) Sufolipidd) Triacyl glycerol
- Which of the following organic compounds contains more than one glucose unit in their molecular structure? Starch Glycogen Only starch, glycogen and chitin contain more than one unit of glucose All organic compounds above contain more than one unit of glucoseWhich of the following functions is NOT or cannot be performed by lipids? They can bind to DNA response elements to control gene expression. They can serve as chemical messengers. They can help in the selective permeability of membranes. They can form pores for the thermodynamically favored passage of ions across membranes.Which of the following lipids are not found in animal membranes? (a) Phosphoglycerides (b) Cholesterol (c) Triacylglycerols (d) Glycolipids (e) Sphingolipids
- Which is common to both glycogen and chitin? They are both storage carbohydrates. They are both structural carbohydrates. Their monomers are repeating glucose units. They form the framework of phospholipids in the plasma membrane of outer nuclear membrane.Which best explains why molecules are classified as lipids? They contain phosphorus They form a double layer They are made up of fart acids They are found in the cell membraneWhich of the following fatty acid has 16 carbon atoms?a) Linolenic acidb) Oleic acidc) Palmitic acidd) Stearic acid
- Which of the following food storage molecules in the human body contains substantial amounts of carbon, hydrogen, oxygen, and nitrogen? cell biology amylose (a type of carbohydrate) amylopectin (a type of polysaccharide) polypeptide (a type of protein) glycogen (a type of polysaccharide) fat (a type of triglyceride)A fatty acid with one or more double bonds between carbon atoms: is unsaturated. has the maximum number of hydrogen atoms possible bonded to the carbon chain. is saturated. is saturated and has the maximum number of hydrogen atoms possible bonded to the carbon chain. is unsaturated and has the maximum number of hydrogen atoms possible bonded to the carbon chain.The enzyme amylase can break glycosidic linkages betweenglucose monomers only if the monomers are in the α form.Which of the following could amylase break down?(A) glycogen, starch, and amylopectin(B) glycogen and cellulose(C) cellulose and chitin(D) starch, chitin, and cellulose