Plasma Membrane-The Cell

Define plasma membrane

• lipid that helps minimize effects of temperature

• only on the outer surface of the plasma membrane and are attached to proteins or lipids; form distinctive cellular markers

• flexible boundary of a cell that separates a cell from its surroundings

• may extend partway into the plasma membrane, cross the membrane entirely, or be loosely attached to its inside or outside face

Tags

NGSS.MS-LS1-2

This image is an example of a phospholipid. Which part of a phospholipid is HYDROPHOBIC?

• the phosphate "head"

• the lipid "tails"

This image is an example of a phospholipid. Which part of a phospholipid is HYDROPHILIC?

• the phosphate "head"

• the lipid "tails"

Tags

NGSS.MS-LS1-2

Where can carbohydrates be found when part of a plasma membrane?

• On the outside of the membrane

• On the inside of the membrane

• Embedded part of the way into the membrane

• Embedded the whole way through the membrane

• All of the above

Tags

NGSS.MS-LS1-2

Where can PROTEINS be found in the plasma membrane?

• On the outside of the membrane

• On the inside of the membrane

• Embedded part of the way into the membrane

• Embedded the whole way through the membrane

• All of the above

What is the function of cholesterol in a plasma membrane?

• To make the membrane flexible

• To control the effect of temperature changes

• To attract water molecules

• To allow nutrients and other essential molecules into the cell

What does "hydrophobic" mean?

• water loving, associates with water

• water fearing, does not associate with water

• a world war II submarine

• an example would be solutes like sugar or salt

Tags

CCSS.RI.11-12.5

CCSS.RI.7.3

CCSS.RI.7.5

CCSS.RI.8.5

CCSS.RI.9-10.3

What does "hydrophilic" mean?

• water loving, associates with water

• water fearing, does not associate with water

• a world war II submarine

• an example would be solutes like oil or fat

Tags

CCSS.RI.11-12.4

CCSS.RI.7.4

CCSS.RI.9-10.4

CCSS.RL.11-12.4

CCSS.RL.9-10.4

Which are example is hydrophobic in nature.

• Oil

• Sugar

• Salt

• Water

The cell membrane is _______________ permeable.

• selectively

• somewhat

• physically

• ionically

Tags

NGSS.MS-LS1-2