AP Bio Ch. 16,17,18 Test Mulriple Choice kemify ohe choice that best completes t
ID: 213529 • Letter: A
Question
AP Bio Ch. 16,17,18 Test Mulriple Choice kemify ohe choice that best completes the snaremest or answers the question omach, is synthesized as pepsinogen and converted I. Pepsin, a digestive enzyme that degrades proteins in the st to active pepsin in the stomach by the removal of several amino acids. The activation of pepsin is an example of a. transcriptional regulation. b. translational regulation. c. posttranscriptional regulation d. posttranslational regulation. e. RNA interference Some restriction endonueleases cut the DNA in such a way that short, single stranded regions are created. We call these regions a. hydrogen-bonding ends b. sticky ends e. tacky ends d. blunt ends 2. e jagged ends 3. Why is ubiquitin nicknamed the "doom tag" When ubiquitin binds to a target protein, the ubiquitin enzyme degrades the protein and destroys it a. b. When ubiquitin binds to a target protein, the complex is sent to the proteasome and the c. If a cell is deficient in ubiquitin, the cell will die. e. Ubiquitin catalyzes the conversion of pepsinogen to active pepsin, an enzyme vital to complex is hydrolyzed to amino acids. e oecit rital proteis, leading to premature cell death protein digestion in the stomach of mammals. A lack of ubiquitin in the stomach causes an organism to starve 4. The core of a virus is a. a protein. b a sugar c. a nucleic acid. d. a fat. e. a phosphate 5. During bacterial conjugation, bacterial DNA with different alleles are transferred. Bacteria use a long tubular ture called ato obtain differing alleles. a. metabolic pilus b. asexual pilus c. flagellum d. cilia c. sex pilusExplanation / Answer
1) post translation regulation
2) sticky end
3) b
4) nucleic acid
5) sex pillus
6) all of the above
7) plasmid
9) 5
10)2
11) E