Question

1. all the following are true regarding active membrane transport except: a) atp is used to move substances across a membrane b) process is used when substances are too small to travel through membrane channels c) substances may have to move against a concentration gradient d) the membrane may lack special protein carriers for the transport of certain substances e) includes exocytosis, phagocytosis, and pinocytosis 10. which of the following statements is false: a) phagocytosis is a protective mechanism use to get substances into the cell. the cell engulfs large particles such as bacteria or dead body cells. b) pinocytosis is when the cell ingests droplets of extracellular fluid containing dissolved proteins or fats. c) receptor - mediated endocytosis is a highly selective process of taking in substances such as enzymes, some hormones, cholesterol, and iron. receptor proteins on the membrane surface bind only certain substances and only those target molecules will enter the cell d) exocytosis is a passive process. all substances move out of the cell by means of exocytosis

Explanation:

For question 9: Active membrane transport uses ATP (a is true), can move substances against a concentration - gradient (c is true), and includes exocytosis, phagocytosis, and pinocytosis (e is true). It is not used just for substances too small for membrane channels (b is false), and the lack of special protein carriers is not a defining feature of active transport (d is false). But the main idea of active transport is energy - dependent movement against a gradient using ATP, so b is the most incorrect among the options.
For question 10: Phagocytosis is for engulfing large particles (a is true), pinocytosis is for ingesting extracellular fluid with dissolved substances (b is true), receptor - mediated endocytosis is selective (c is true). Exocytosis is an active process where substances are released from the cell, not a passive one (d is false).

Answer:

1. B
2. D