Study Guide for Exam on Cells, Membranes, and Transport
Cell Structure and Function (Sections 7-1 and 7-2)
*Review notes Section 7-1 Life is Cellular (p. 169)
*Review notes Section 7-2 (parts 1 & 2) Cell Structures (p. 173) – all of the organelles
*Review the big cell packet done for homework (Section 7-2 Eukaryotic Cell Structure)
*POGIL Prokaryotic and Eukaryotic Cells questions (done as a group and for
homework)
*Your Venn diagram comparing and contrasting prokaryotic vs. eukaryotic cells
*Review the worksheet “Cell Parts and Their Jobs” done for HW
*Use your cell organelle flashcards to study the parts of the cell
*Review your class’ cell organelle campaign brochures
*Your cell analogy
*Cell size activity – potato cubes and the blue dye; surface area-to-volume ratio
calculations
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Know the scientists who pioneered the use of microscopes
Know the tenants of the cell theory
Know the structures that all cells have in common
Know the difference between prokaryotes and eukaryotes
Know the structures and functions of the following cell parts:
o cell wall, cell membrane, nucleus, nuclear envelope,
chromatin/chromosomes, nucleolus, ribosomes, rough endoplasmic
reticulum, smooth endoplasmic reticulum, Golgi apparatus, lysosomes,
vacuoles, mitochondria, chloroplasts, cytoskeleton, and centrioles
 Locate these cell parts given a diagram of a cell
• Know how to calculate the surface area-to-volume ratio and what that means for a
cell
o The smaller the cell, the higher the SA/V
o Be able to answer the question: Why are cells small?
Cell Membrane and Cell Transport (Section 7-3)
*Review notes Section 7-3 Movement Through the Membrane (p. 184) - has picture of
the cell membrane on p. 1
*Review notes 7-3 Movement Through the Membrane (p. 186-188) - discusses selective
permeability and osmosis on p. 1
*Read through the osmosis handout (isotonic, hypotonic, and hypertonic solutions on
the front and back)
*Review notes 7-4 Movement Through the Membrane (p. 189) - active transport
*Review the Cell Transport WebQuest and go to the PH School website on membrane
transport:
http://www.phschool.com/science/biology_place/biocoach/biomembrane1/intro.html
*Review the osmosis worksheet (with the U-tube question at the bottom)
*Review the osmosis Do-Now – 6 problems with % concentration of solute and solvent
• Know what components make up a lipid bilayer
o Phospholipids, channel proteins, and carbohydrates
• Be familiar with the structure of a phospholipid
o Hydrophilic head and hydrophobic tails
o How do these properties relate to how the lipid bilayer is arranged?
• Know that the cell membrane is selectively permeable – what does this mean?
• Check out this cell transport animation, showing the composition of the cell
membrane, diffusion/osmosis, passive transport, and active transport
• Describe the process of diffusion
o Know that molecules move in both directions equally across the membrane
after equilibrium is reached
o How Diffusion Works animation; diffusion animation from textbook
• Describe the process of osmosis
o See the example of sugar and water molecules in your notes
o Compare and contrast the three different types of solutions - isotonic,
hypotonic, and hypertonic
 Osmosis animation; osmosis animation from textbook; osmosis
experiment with the dialysis tubing (YouTube video)
 Be able to tell whether a solution is hypotonic, hypertonic, or isotonic,
what happens to the cell in solution, and in which direction the water
will move (see the Osmosis “Do Now” worksheet)
• Describe the process of facilitated diffusion
o How facilitated diffusion works
• Describe the process of active transport
o Sodium-potassium pump requires energy for small molecules to move from
low to high concentration across a membrane
o Also describe the processes of endocytosis and exocytosis
 Two types of endocytosis:
 phagocytosis: “cell eating”
 pinocytosis: “cell drinking”
• Amoeba feeds on a bacterium video and amoeba feeds on a
Paramecium video
• Generally be able to compare and contrast passive and active transport