With regard to the semipermeable nature of the plasma membrane, which of the following would readily cross without the aid of a transport protein?

A) calcium ions
B) glucose
C) water
D) amino acids
E) DNA


C) water

Biology & Microbiology

You might also like to view...

A naked virus only has a/an ________.

A. nucleocapsid B. capsomere C. antigenic surface D. envelope

Biology & Microbiology

The large, fluid-filled spaces within the brain are called the:

a. choroid plexus. b. ventricles. c. meninges. d. pia mater.

Biology & Microbiology

Why are archaeans more tolerant of extreme environmental conditions than bacteria?

What will be an ideal response?

Biology & Microbiology

The sun's energy is produced by:

a. nuclear fission reactions. b. nuclear fusion reactions. c. electromagnetic radiation. d. ultraviolet radiation. e. infrared radiation

Biology & Microbiology