Phagocytosis pinocytosis receptormediated endocytosis second

Phagocytosis pinocytosis receptor-mediated endocytosis secondary Clive transport Passive membrane transport processes include movement of a substance down its concentration gradient movement of water from an area of low concentration to an area of high concentration consumption of ATP the use of transport proteins Peroxisomes are also called microbodies, and contain acid hydrolases are able to detoxify substances by enzymatic action o function to digest particles ingested by endocytosis sometimes function as secretary vesicles DNA replication can also be called mitosis is spontaneous, not requiring enzyme action taken place during interphase of the cell cycle occurs only in translationally active areas In the maintenance of the cell resting membrane potential extracellular sodium levels are high cells are more permeable to Na+ than K+ the steady state involves only passive processes in all cells the inside of the cell is positive relative to its outside Which of the following does not serve as a signal for cell division? repressor genes joining of cyclins and Cakes contact inhibition surface-to-volume ratio

Solution

38. (a)

39. (D) Phospholipids

40. (D) Mitosis always results in cell replication

41.(a) melanin is a pigment