Plasma Membrane & Osmosis

The cell membrane is mostly made of what?

• Membrane-spanning Proteins

• Surface Proteins

• Phospholipids

• Carbohydrates

Tags

NGSS.MS-LS1-2

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

• carbohydrate

• lipid

• protein

• nucleic acid

What is the "big idea" of the fluid mosaic model of plasma membranes?

• the plasma membrane creates a specialized FLUID that looks like a MOSAIC.

• the plasma membrane is a MOSAIC.

• the fluid mosaic model is NOT related to the plasma membrane.

• a plasma membrane is a MOSAIC of components that move FREELY and FLUIDLY.

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.11-12.3

CCSS.RI.11-12.5

CCSS.RI.8.3

CCSS.RI.9-10.3

CCSS.RI.9-10.5

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.8.4

CCSS.RI.9-10.4

CCSS.RL.11-12.4

CCSS.RL.9-10.4

Cell membranes are said to be

• selectively permeable
• non-permeable
• permeable
• psuedopermeable

Tags

NGSS.MS-LS1-2

A special type of diffusion that involves water only.

• osmosis

• facilitated diffusion

• active transport

• bulk transport

Which of the following requires ATP. The particles are too big to just move through the membrane.

• osmosis

• diffusion

• active transport

• facilitated diffusion

Which of the following is the bulk excretion of materials from the cell? (The cell spits them out.)

• pinocytosis

• phagocytosis

• endocytosis

• exocytosis

A solution with equal water potential to that inside a cell is said to be

• hypertonic
• isotonic
• hypotonic
• tonic