Question

the diagram represents diffusion across a cell membrane classified as methods of passive transport because they do not require?
extracellular space
sodium
na+
potassium
k+
plasma
membrane
cytoplasm
atp
adp
phosphate
na+
k+
concentration
o a. atp
o b. carbon dioxide
o c. light
o d. dna

Explanation:

Passive transport is a type of membrane transport that does not require energy input from the cell. ATP (adenosine triphosphate) is the energy currency of the cell. If a transport method does not require ATP, it is likely a passive transport. Carbon dioxide is a molecule that can be transported, but it's not the energy source. Light is relevant in photosynthesis (not in general cell - membrane transport energy requirements). DNA is the genetic material and not related to energy for transport.

Answer:

A. ATP