객관식
Which of the following compounds is considered a strong acid in aqueous solution?
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3. Acids and Bases
Acid and Base Definitions
객관식
Which of the following statements best describes the main difference between and in the context of and ?
A
requires energy input, while does not.
B
can move substances against their concentration gradient, while cannot.
C
occurs through the lipid bilayer, while requires a transport protein.
D
is specific to ions, while is not.
검증된 단계별 안내1
Begin by understanding the concept of diffusion: Diffusion is the passive movement of molecules from an area of higher concentration to an area of lower concentration, driven by the concentration gradient.
Next, explore facilitated diffusion: Facilitated diffusion is also a passive transport process, but it involves the use of transport proteins to move substances across the cell membrane.
Consider the role of the lipid bilayer: In simple diffusion, molecules move directly through the lipid bilayer without the need for any additional structures or energy.
Examine the necessity of transport proteins: Facilitated diffusion requires specific transport proteins embedded in the cell membrane to help certain molecules, such as ions or polar molecules, cross the membrane.
Compare the specificity and energy requirements: Both diffusion and facilitated diffusion do not require energy input, but facilitated diffusion is specific to certain molecules that cannot pass through the lipid bilayer without assistance.
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