Membranes and Transport Review

This cellular structure helps organisms maintain homeostasis by controlling what substances may enter or leave cells.

• vacuole
• nucleus
• cell membrane
• cell wall

Tags

NGSS.MS-LS1-2

What are two types of passive transport?

• endo and exocytosis 
• in a minute and later
• hydrophobic and hydrophillic 
• osmosis and diffusion

When something is 'water fearing' it is....

• Hydrophobic
• Hydrophilic 
• Hydroelectric 
• Hydrochloric

Tags

NGSS.HS-ESS2-5

In which direction will these molecules diffuse (not a trick question -assume they CAN get through the membrane)?

• from right to left
• from left to right
• they will not move at all
• they will move in both directions equally

Tags

NGSS.HS-PS1-5

Which part of this phospholipid is hydrophobic?

• fatty lipid tails
• head
• all of it is hydrophobic
• none of it is hydrophobic

Tags

NGSS.MS-PS1-1

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

A phospholipid has 2 parts. What are they called? 

• Hydrophilic Head, Hydrophobic Tail 
• Hydrophobic Head, Hydrophilic Tail 

Which of these are examples of Lipids?

• simple sugars

• complex carbohydrates

• fats, oils, & waxes

• hair, skin, & nails

Monomers of Lipids include

• amino acids

• monosaccharides

• nucleotides

• glycerol and fatty acids

Monomers of carbohydrates include

• amino acids

• monosaccharides (simple sugars)

• nucleotides

• glycerol and fatty acids