Cell Membrane Cellular Transport

In a nerve cell, ATP energy is used to pump sodium (Na) out of the cell and potassium (K) into the cell. This is an example of...

• Facilitated Diffusion

• Simple Diffusion

• Osmosis

• Active Transport

Define plasma membrane

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

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

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

• lipid that helps minimize effects of temperature

Which type of biological macromolecule is the main component of the plasma membrane?

• carbohydrate

• lipid

• protein

• nucleic acid

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"

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

• On the outside of the membrane

• Embedded part of the way into the membrane

• On the inside of the membrane

• Embedded the whole way through the membrane

What is another term for "selectively permeable"?

• porous

• permanent

• completely permeable

• semipermeable

Which of the following is NOT part of the cell membrane?

• Carbohydrates

• Nucleic Acids

• Lipids

• Proteins

Part of the plasma membrane responsible for cell recognition...

• C

• E

• B

• D

A cell that is 45% water & 55% solute is placed in a beaker of with a water concentration of 75% and solute concentration of 25%. What will happen to the cell?

• water moves out of the cell and it shrinks

• water moves out of the cell and the cell swells

• water moves into the cell and the cell could burst

• water moves in and out of the cell at equal rates

Tags

NGSS.HS-LS1-3