2.2 Cell Membrane

The majority of the plasma membrane is composed of ______.

• phospholipids

• proteins

• carbohydrates

• cholesterol

What property does the phospholipid bilayer give to a plasma membrane?

• provides the barrier between the inside and outside of the cell

• communicates between cells

• conducts electrical impulses in nerve cells

• allows cells to bind to each other

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

• carbohydrate

• lipid

• protein

• nucleic acid

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

Where can PROTEINS 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 these

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 is the outer boundary called on ALL cells that controls what goes in and out of that cell?

• Cell Wall

• Nuclear Membrane

• Plasma Membrane

• Permeable Membrane

Tags

NGSS.MS-LS1-2

Which one of these would be considered a hypertonic solution to human cells?

• Distilled Water

• Saline Solution

• Ringer's Solution

• Tap Water

Which of the following would be considered Hypotonic to Human cells?

• Distilled water

• Saline solution

• Ringer's solution

• Seawater

Interstitial fluid is _________

• considered mostly isotonic to intracellular fluid

• found in-between cells

• composed of water and solutes like sugars, fats, proteins and ions

• all of these