Four of the following statements are true regarding facilitated diffusion. Which one is false?

A. It requires a transport protein.
B. Movement follows the concentration gradient of the substance.
C. It can occur through a permanently open channel.
D. It requires ATP.
E. The transported substance and the transport protein are usually specific to each other.


Answer: D

Biology & Microbiology

You might also like to view...

For a reaction at 37 degree C, a 5.94 kJ/mole decreases in delta G changes by K by a factor of which of the following?

A.) 10^1 B.) 10^3 C.) 10^2 D.) 10^-1

Biology & Microbiology

Gram staining of the patient's samples would help to identify which type of pathogens?

A. bacteria B. prions C. viruses D. fungi

Biology & Microbiology

Why is it beneficial to plants that soil particles have negatively-charged surfaces?  

A.  It helps maintain the water potential of the soil. B.  They attract positively-charged ions and prevent them from being washed deep into the soil. C.  Negatively-charged ions are pushed towards the roots. D.  Toxic metals are trapped and kept away from the plants. E.  They capture negatively-charged ions.

Biology & Microbiology

Which structure do prokaryotic cells lack?

a. nucleoid regions b. membrane-bound nuclei c. cytoplasm d. a plasma membrane e. DNA

Biology & Microbiology