Cell Membrane Flashcard

Front

Which cell membrane structures form a bilayer, are mainly responsible for the selective permeability of the cell membrane, and are composed of hydrophilic heads and hydrophobic tails? Options: phospholipids, transport proteins, cholesterol, carbohydrate chains

Back

phospholipids

Front

Which cell membrane structures allow for movement of some substances across the cell membrane? The substances that move through the membrane are unable to cross the hydrophobic tails in the membrane. Options: phospholipids, transport proteins, cholesterol, carbohydrate chains

Back

transport proteins

Front

Fluid mosaic model of the cell membrane

Back

The membrane is in constant motion and is made of many different parts.

Front

What is structure B? Options: carbohydrate chain, phospholipid head, phospholipid tail, cholesterol

Back

carbohydrate chain

Front

Hydrophobic region of the cell membrane? Options: E, B, C, A 

Back

E

Front

The function of the plasma membrane is...

Back

to regulate what enters and leaves the cell.

Front

Which factors impact a chemical's ability to enter through the cell membrane? Options: size, polarity (charges it has), concentration

Back

size, polarity (charges it has), concentration

Front

True or False: There are some particles that will constantly go in and out of the phospholipid bilayer without needing a protein to get through.

Back

True

Front

As the surface area increases within the membrane, it allows for:

Back

more opportunities for the proteins to take in or eliminate waste

Front

True or False. Proteins that are in the membrane have hydrophilic areas inside to allow for chemicals to pass through them without having to try and go through the hydrophobic phospholipid bilayer.

Back

True