Cells and Cell Transport

What macromolecule is A?

• phospholipid

• carbohydrate

• protein

• nucleic acid

Tags

NGSS.MS-LS1-7

What macromolecule is B?

• Carbohydrate

• Glycolipid

• Protein

• Nucleic Acid

Tags

NGSS.HS-LS1-1

NGSS.HS-LS1-6

What macromolecule is C+D?

• Carbohydrate

• Phospholipid

• Glycoprotein

• Nucleic Acid

What macromolecule is E?

• Carbohydrate

• Protein

• Nucleic Acid

• Cholesterol

What macromolecule is G?

• Carbohydrate

• Lipid

• Integral Protein Channel

• Peripheral Protein

How do protein molecules control what goes into and out of the cell?

• Proteins use ATP to open and close gates when specific molecules enter their "lock."

• Proteins splash water on molecules to help them slide into the cell

• Proteins turn inside out to let things in and out of the cell.

• Proteins wiggle around until other molecules slip through.

What molecules can go through the phospholipid bilayer without passing through any type of protein?

• Small polar molecules like water.

• Small, nonpolar molecules like oxygen, nitrogen and carbon dioxide.

• Medium sized molecules like glucose.

• Large molecules like other proteins.

What are glycolipids and glycoproteins?

• Macromolecules with a carbohydrate attached.

• Macromolecules with an extra lipid attached.

• Macromolecules with an extra protein attached.

• Macromolecules with an extra nucleic acid attached.

We learned more about six properties of the cell membrane through looking at bubbles, EXCEPT...

• Cell membranes move and flex.

• Cell membranes can self-repair.

• Cell membranes perform endocytosis and exocytosis.

• Cell membranes reproduce by dividing.

How does the fact that molecules are always moving affect diffusion and equilibrium? (2 correct answers)

• Moving molecules spread out to fill all of the available space evenly.

• Moving molecules mean that molecules become more concentrated as time goes on.

• Moving molecules mean that even at equilibrium some molecules are moving back and forth across the membrane.

• Moving molecules mean that at equilibrium everything is completely still