Components of the Cell Membrane

Question 1

Found in all cells and separates the interior of the cell from outside movement

Answer 1

Cell/Plasma membrane

Question 2

[ToF] The cell membrane is semi-permeable

Answer 2

True

Question 3

Their individual structures collectively form the mechanical shape of the cell membrane

Answer 3

Phospholipids

Question 4

They help regulate the entrance of liquid into cells through the formation of hydrogen bonds through specialized hydrophilic heads

Answer 4

Phospholipids

Question 5

Phospholipids have a _____ head and a _____ tail

Answer 5

Hydrophilic (water-loving) head
Hydrophobic (water-hating) tail

Question 6

Phospholipid heads contain

Answer 6

Phosphate and glycerol

Question 7

Phospholipid tails contain

Answer 7

Saturated and unsaturated fatty acids

Question 8

What is formed if you put phospholipids in an aqueous solution?

Answer 8

Liposome (bilayer)
Micelle (monolayer)

Question 9

Maintains the appropriate level of fluidity by managing the distance between phospholipids

Answer 9

Cholesterol

Question 10

A naturally occurring, extremely complex substance that consists of amino acid residues joined by peptide bonds

Answer 10

Proteins

Question 11

Types of proteins according to location

Answer 11

Integral and Peripheral

Question 12

Proteins that extend across the lipid bilayer. Difficult to detach/remove, you need to use detergents on them.

Answer 12

Integral proteins

Question 13

Easily detachable, cell-specific proteins at the edge of the bilayer

Answer 13

Peripheral proteins

Question 14

Types of Proteins according to function

Answer 14

Carrier proteins
Ion channels
Enzymes
Receptor proteins
Glycoproteins

Question 15

Regulate/filter inorganic ions

Answer 15

Ion channels

Question 16

Transport larger molecules

Answer 16

Carrier proteins

Question 17

Catalyze chemical reactions

Answer 17

Enzymes

Question 18

Help the cell communicate with their external environment through signaling molecules. Assigns molecules to receptor sites

Answer 18

Receptor proteins

Question 19

Help identify and direct molecules

Answer 19

Glycoproteins

Question 20

When temperature is higher:

Answer 20

The cell membrane components move farther away

Question 21

When temperature is lower:

Answer 21

Phospholipids will clump and render the cell rigid