Which of the following would be likely to require facilitated diffusion to move across the plasma membrane?

a. water (H2O)
b. sodium ions (Na+), hydrogen ions (H+), sugars, and amino acids
c. oxygen (O2)
d. carbon dioxide (CO2)


Ans: b. sodium ions (Na+), hydrogen ions (H+), sugars, and amino acids

Biology & Microbiology

You might also like to view...

New genetic variation in a population is a critical aspect of microevolution

Indicate whether the statement is true or false

Biology & Microbiology

Beckwith-Wiedemann syndrome is a cell growth disorder that causes enlarged organs, high birth weight, and predisposition to cancer

a. True b. False Indicate whether the statement is true or false

Biology & Microbiology

Ribosomes are composed of

a. proteins only. b. proteins and DNA. c. proteins and RNA. d. glycolipids and DNA. e. glycolipids and RNA.

Biology & Microbiology

In the illustration above showing the haploid phase in the life cycle of a fern, what part represents the male

gametangium? a. 1 b. 2 c. 3 d. 4 e. 5

Biology & Microbiology