Question

8. Which of the following is not a destination for vesicles leaving the Golgi apparatus? a. The plasma membrane b. The exterior of the cell c. Lysosomes d. Mitochondria 12 9. Proteins that fail to fold properly in the endoplasmic reticulum are removed by a process termed alled 10. Chloroplasts have three membranes: the inner membrane, the outer membranc, and the membrane. t I. Which of the following is not a protein translocon/translocase found in the mitochondrial inner or outer membrane? a. Oxal b. Tim23 С. Тот 40 d. Toc75 12. The amino terminal presequence on proteins imported into the mitochondrial inner membrane is a. cleaved by mitochondrial matrix proccssing peptidase (MPP). b. transported back to the intermembrane space by Hsp70 chaperones. c. cleaved and translocate laterally into the inner membrane. d. cleaved during transit from Tom to Tim23. 13. When a striated muscle is stimulated to contract, calcium is relcased primarily from the and interacts with a group of three thin-filament proteins called the long, thin protein , which in turn cause to move away from the cross-bridge binding sites on the molecules. This allows the cross-bridge cycle to occur. 14. Why might colchicine, a tubulin-binding drug, be used to treat cancer? 15. Microtubules are not involved in a. movement of chromosomes during mitosis. b. transport of membranous vesicles in the cytoplasm. c. cytokinesis of animal cells. d. movement of cilia and flagella. 16. Which nucleotide triphosphate is hydrolyzed during a cycle of microtubule assembly and disassembly? a. ATP b. TTP c. CTP d. GTP

Answer 1

Answers

Q8…The answer is b…The exterior of the cell.

Q9…Proteins that fail properly in the endoplasmic reticulum are removed by a process

Termed as …..Phagocytosis.

Q10…Chloroplast have three membranes the inner, outer and …. Thylakoid membrane.

Q11…The answer is d…TOC 75

Q12…The answer is a…cleaved by mitochondrial matrix processing peptidase.

Q14…a.As clolchicine damages internal cells by blocking the action of tubulin (protein)

          b.It plays a vital role in helping cells to divide.

         c.It is highly poisonous and also divides active cells.

So…it might be used for cancer treatment.

Q15…answer is a…movement of chromosomes during mitosis.

Q16…answer is a…ATP.