Which of the following molecules would be blocked by a cell membrane?

a. Simple alcohols
b. Water
c. Dissolved oxygen
d. Ions


Answer: d. Ions

Biology & Microbiology

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Receptors in the human nose are:

a. chemoreceptors b. mechanoreceptors c. photoreceptors d. nociceptors e. thermoreceptors

Biology & Microbiology

The USFA recommends establishing a rehabilitation operation when the chill factor drops to ___ or lower.

a. 10 degrees F b. 20 degrees F c. 15 degrees F d. 25 degrees F

Biology & Microbiology

Bacteria growing at lower temperatures have more saturated fatty acids in their membranes.

Answer the following statement true (T) or false (F)

Biology & Microbiology

All EXCEPT which of the following is true of the

spinal cord? a. houses connections between sensory and motor neurons b. serves as a reflex center c. its gray matter serves as passageway for nerve tracts to brain d. is covered with meninges e. is enclosed by vertebrae

Biology & Microbiology