15) An element with more or fewer neutrons than the same element as it appears o

Question

15) An element with more or fewer neutrons than the same element as it appears on the periodic table is known as which of the following? A) ion B) buffer C) isotope D) isomer 16) Dipeptidase is an enzyme found in your small intestine that helps break polypeptides down. What would its most likely products be? A) amino acids B) proteins C) triglycerides D) oligosaccharides 17) An organic compound that provides instructions for the synthesis or production of polypeptide chains is referred to as which of the following? A) nucleotide B) lipids C) ATP D) DNA 18) Which of the following is not found in ATP? A) a nitrogen-containing base C) a phosphate group B) a sugar D) All of these are found in ATP 19) These lipids have hydrophobic part and a hydrophilic part. A) triglycerides B) carotenoids C) phospholipids D) steroids 20) Saturated fatty acids are so named because they are saturated with A) hydrogen B) nitrogen C) carbon D) oxygen 21) Which of the following carbohydrates is made by plants and is not digested by humans? A) lactose B) starch C) cellulose D) glycogen 22) A molecule consists of a long chain of glucose monomers linked by covalent bonds and serves as an energy source for plants and animals. Which of the following would describe this molecule? A) polysaccharide B) oligosaccharide D) sucrose

Explanation / Answer

15. C, isotope

16. A, amino acids are the basic unit of polypeptides and proteins.

17. D, DNA makes RNA and RNA makes proteins

18. D, All of these are found in ATP.

19. C, Phospholipids are present in all cells, makes the cell membrane

20. A, hydrogen

21. C, cellulose only vegetarian animals can digest cellulose

22. A, polysaccharide.

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