Chapter 12 - Transport Across Cell Membranes - Questions - Page 417: Question 12-12 A

(A) similarity between symport and antiport- both involve the transport of more than one molecule or ion across the membrane at the same time. In symport, two or more molecules or ions are transported in the same direction. in antiport ,two or more molecules or ions are transported in opposite directions. (B) difference between symport and antiport In symport, molecules or ions are transported in the same direction In antiport, molecules or ions are transported in opposite directions.

(1) Similarity between symport and antiport- both involve the transport of more than one molecule or ion across the membrane at the same time. In symport, two or more molecules or ions are transported in the same direction. in antiport, two or more molecules or ions are transported in opposite directions. (2) Difference between symport and antiport In symport, molecules or ions are transported in the same direction In antiport, molecules or ions are transported in opposite directions.