Cell Membrane

may be used topically on skin or mucus membrane but not given orally

antiseptic

The description of a prokaryote cell membrane is based on the fluid-mosaic model. Which component of the cell membrane is responsible for the mosaic character of the cell membrane?

proteins

T/F some antiseptics disrupt the plasma membrane of bacteria and yeast, and these antiseptics can be taken orally

false

If a substance is transported across the membrane by active transport, the energy for transport is...

ATP

If a substance is transported across the membrane by facilitated diffusion, the energy for transport is from the...

concentration gradient

only used on inanimate objects

disinfectant

In prokaryotes, substances move across the membrane by the following mechanisms...

facilitated diffusion active transport simple diffusion

are membranes a good target for antimicrobials?

no

The term 'mosaic' refers to...

the variety of molecules making up the membrane

the term 'fluid' refers to...

the way molecules making up the membrane can freely move around and the phospholipid molecules

T/F Because of the amphipathic character of phospholipids, when placed in water they will arrange themselves into a bilipid membrane even though they aren't bonded to each other.

true

T/F lipid = tail

true

T/F phosphate group=head

true