If ATP production is blocked, decreased transport of material across a membrane occurs. Which type of transport is affected? Choose all that apply.A) osmosisB) diffusionC) facilitated diffusionD) active transportE) endocytosis
What will be an ideal response?
D, E
Clarify Question
• What is the key concept addressed by the question?
o The question asks about forms of transport that require ATP.
• What type of thinking is required?
o You are being asked to apply your knowledge about forms of transport that require ATP.
Gather Content
• What do you know about forms of transport that require ATP? What other information is related to the question?
o Movement down a concentration gradient is a passive process and does not require ATP. These include osmosis, diffusion and facilitated diffusion. Active transport uses ATP to move molecules against their concentration gradient. Endocytosis requires ATP to pinch the membrane forming a vesicle inside of the cell.
Choose Answer
• Given what you now know, what information and/or problem solving approach is most likely to produce the correct answer?
o Active transport and endocytosis require ATP, so if ATP formation is blocked they will cease. The other forms of transport do not require ATP as molecules move down their concentration gradient.
Reflect on Process
• Did your problem-solving process lead you to the correct answer? If not, where did the process break down or lead you astray? How can you revise your approach to produce a more desirable result?
o This question asked you to apply your knowledge about forms of transport that require ATP. If you got the correct answer, great job! If you got an incorrect answer, where did the process break down? Did you think that movement down a concentration gradient requires ATP? Did you realize that endocytosis requires ATP?
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