BIO1(jasmincruz)

Question 1

General Functions
of Cell Membrane

Answer 1

1.primary barrier
of the cell

2.receives
information or
stimulus

3.allows the cell
to move and
grow

Question 2

The cell membrane
consists of a diversity of

Answer 2

lipids, carbohydrates,
and proteins.

Question 3

The aqueous nature of the intracellular and
extracellular environments energetically favors

Answer 3

Phospholipid Bilayer

Question 4

this is the head region but it is also known as ________ _____
and the tails is called ______ ______

Answer 4

hydrophilic head
hydrophobic tail

Question 5

what is Molecules Embedded
in the Membrane?

Answer 5

Cholesterol

Question 6

thi prevents membrane from
becoming too fluid at
higher temperatures and too solid at lower

Answer 6

Cholesterol

Question 7

what is the importance of fluidity

Answer 7

It imparts flexibility to the
membrane which is
important for cells that
particularly move.

The fluidity allows the
synthesized membrane
proteins and phospholipids
to be easily incorporated
into the membrane.

Question 8

is capable of moving using its
pseudopods or false feet because of the natural

fluidity of the plasma membrane.

Answer 8

unicellular amoeba

Question 9

what is called to the false feet of the cell

Answer 9

pseudopods or false feet

Question 10

unsaturated hydrocarbon tails with kinks

Answer 10

fuild

Question 11

saturated hydrocarbon tail

Answer 11

viscous

Question 12

The presence of ________ ____ in fatty acids helps
maintain membrane fluidity.

Answer 12

double bonds

Question 13

may
either be channel proteins or carrier protein

Answer 13

Transport proteins

Question 14

fasten adjacent cells
together in animal tissues.

Answer 14

Adhesion proteins

Question 15

help in recognition
when the body is being invaded by
pathogens so that the necessary immune
response may be triggered.

Answer 15

Recognition proteins

Question 16

have certain
shapes that allow only specific
molecules to bind to them.

Answer 16

Receptor proteins

Question 17

what are the Membrane Proteins

Answer 17

Transport

Adhesion

Recognition

Receptor

Question 18

it occur only on the outside surface
of the lipid bilayer or on the proteins. The primary function

of these chains is to recognize harmful cells.

Answer 18

carbohydrate chains

Question 19

polar and larger
molecules
● small, non-charged
molecules

Answer 19

Selectively permeable

Question 20

Molecules that require energy expenditure
for them to be transported across the membrane

Answer 20

Impermeable

Question 21

Molecules that are free to move across the membrane

Answer 21

Permeable