AP Unit 2

Blood cells would appear wrinkled and bumpy in which of the following solutions?

• hypertonic

• hypotonic

• isotonic

• all three solutions

Blood cells would swell and burst in a/an ___ solution.

• hypertonic

• hypotonic

• isotonic

• all three of these

Which of the following processes requires the cell to spend energy in the form of ATP?

• active transport

• passive transport

• diffusion

• osmosis

Cell membranes are important mainly because ___.

• all materials needed by the cell must pass across them.

• all cell functions occur in the membrane.

• they only allow water to enter the cell.

• all energy is produced by them

Tags

NGSS.HS-LS1-3

Osmosis is the movement of __________ across a membrane? 

• Glucose

• Water

• N⁺ ions

• Hydrogen Peroxide

A cell is placed in an open beaker. A student calculates that the water potential of a solution inside inside the cell is -2.50 bar and the water potential of a solution surrounding the bag is -4.75 bar. In which direction will the water flow?

• Into the bag

• Out of the bag

• No net change in water

• Cannot tell from this info

Describes the arrangement of the cell membrane as bendable and made of many parts. 

• The Fluid Mosaic Model 

• The Major Mobility Model 

• The Crazy Cell Model

• The Maze Model

___________ strengthens and stabilizes the cell membrane.

• Carbohydrates 

• Proteins 

• Phospholipids 

• Cholesterol

Something is ___________ ____________
when some molecules can cross the membrane while others cannot. 

• Selectively (or Semi) Permeable 

• Totally Transparent

• Liquid Licorice 

• Heavily Patrolled 

Which statement is a part of the cell theory?

• All cells come from preexisting cells

• Bacteria are prokaryotic cells

• Eukaryotic cells are complex

• Humans are multicellular