atom gves up an electron it becomes charged 16 During chemical bond formation, w
ID: 202096 • Letter: A
Question
atom gves up an electron it becomes charged 16 During chemical bond formation, whe 8) ouer-shell electrons of one anem are C) Neutral D) None of the above D) electrons are removed from one atom and 17. Am isotope of an element contains d in its nucleus number of E) protons and neutrons are sharnd by two atoms A) electron B) proton 12) Organie chemistry is a science based on the study of D) none of the above )vital fonces interacting with matter 18. Which twe functional groups are always found in amino acids? A) Carboxyl (acid) and amino B) carbonyl and carboxyl C) ketone and aldehyde D) hydroxyl and aldehyde E) phosphate and sulfhydryl D) water and its interaction with other kinds of molecules ) functional groups 13) Which of the fellow ing explains most specificaly the attraction of water molecules to one another? A) hydrophobic interaction B) nonpolar covalent bond 19. Which of the following is NOT a polymer? A) protein B) glucose C) starch D) glycogen E) DNA C) ionic bond D) hydrogen bond E) polar covalent bond 14) Hydrophobic substances such as vegetable oil 20. What is the chemical mechanism by which A) nonpolar substances that have an attraction for water molecules. cells make polymers from monomers? B) nonpolar substances that repel water molecules. A) ionic bonding of monomer B) hydrolysis C) polar substances that repel water molecules. D) polar substances that have an affinity for water E) charged molecules that hydrogen-bond with water molecules. C) phosphodiester linkages D) dehydration reactions E) the formation of disulfide bridges between monomers 15) How many electron pairs does carbon Atomie Number 6) share in order to complete its valence (outer) shell? A) 8 21. Lactose, a sugar in milk, is composed of one glucose molecule joined to one galactose molecule. What kind of saccharide is it? A) a polysaccharide B) a pentose sugar C) a disaccharide D) a hexose sugar E) a monosaccharide B) 1 C) 4 D) 3Explanation / Answer
12. The answer is C) Carbon compounds
13. The answer is E) Polar covalent bond
14. The answer is B) nonpolar substances that repel water molecules.
15. The answer is C) 4
16. The answer is B) Positively charged
17. The answer is C) Neutron
18. The answer is A) Carboxyl and amino
19. The answer is B) Glucose
20. The answer is D) dehydration reactions.
21. The answer is C) Disaccharide.
Related Questions
Navigate
Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.