Gases like carbon dioxide and oxygen move across the cell membrane using? a. lon channels b. Facilitate diffusion. c. Exocytosis d. Diffusion

Gases like carbon dioxide and oxygen move across the cell membrane using diffusion (option d).

Explanation:

The cell membrane is a semi-permeable barrier to the passage of substances through it, having several transport mechanisms to allow the passage of substances.

One of the transmembrane transport mechanisms is simple diffusion, by which gases from respiration —oxygen and carbon dioxide— can pass, as well as small nonpolar molecules.

Simple diffusion is a mechanism that does not require energy, but depends on a transmembrane concentration gradient.

    The other options are not correct because they involve transmembrane transport mechanisms that are not used by oxygen and carbon dioxide.

when the displaced particles are perpendicular to the direction the wave travels, is called a transverse wave, whereas in longitudinal wave the displace practices are parallel to the direction of the wave.

in the given image:

first image shows - longitudinal wave

second image shows - transverse wave

third image shows - longitudinal wave

fourth image shows - longitudinal wave