The primary difference between simple and facilitated diffusion is that facilitated diffusion requires a membrane protein to act as a channel or carrier for a substance while simple diffusion means substances can slip through the lipid bilayer without a channel or carrier being needed.

a. true
b. false


a. true

Biology & Microbiology

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The human body consists of several structural and functional levels of organisms

Biology & Microbiology

The organelles of a eukaryotic cell are suspended in its ________

Fill in the blank(s) with correct word

Biology & Microbiology

A flower could best be described as which of the following?

A. modified petals B. modified leaves C. modified stems D. primary buds E. incomplete leaves

Biology & Microbiology

Isomerization of glucose 1-phosphate to glucose 6-phosphate is energetically favorable. At 37°C, ?G° = –1.42 log10K. What is the equilibrium constant for this reaction if ?G° = –1.74 kcal/mole at 37°C?

(a) 16.98 (b) 0.09 (c) –0.09 (d) 0.39

Biology & Microbiology