Honors Biology
Test 12/3 and 12/6
Chapter 3 & 6
UNIT REVIEW:
CELL STRUCTURE & FUNCTION/MOVEMENT ACROSS A MEMBRANE
I.
Vocab to Know
Diffusion
Osmosis
Concentration gradient
Selective permeability
Exocytosis
Endocytosis
Hypertonic
Hypotonic
Isotonic
II.
Active transport
Passive transport
Transport/carrier protein
Facilitated diffusion
Prokaryotic
Eukaryotic
Organelle
Cell/plasma membrane
Fluid-mosaic model
Electron scanning microscope
Light microscope
Cell theory
Micrometer
Nanometer
Pinocytosis
Phagocytosis
Turgor pressure
homeostasis
BE ABLE TO ANSWER THE FOLLOWING QUESTIONS
1. Describe the chronology and roles of the following individuals in cell theory: Hooke,
Schleiden, Schwann, Brown, Van Leeuwenhoek, Remak and Virchou
2. What are the three tenets of the cell theory?
3. Compare the prokaryotic and eukaryotic cells:
Prokaryotic
Definition
Size
Internal Structures
Kingdoms?
4.
1 mm= ______ micrometers
1 micrometer = _______nanometers (nm)
1 nanometer = ________ Angstrom (Å)
Eukaryotic
Honors Biology
Test 12/3 and 12/6
Chapter 3 & 6
5. Why aren’t cells larger than they are? What limits the size of a cell?
6. How do plant cells and animal cell differ? List three differences.
7. What is the role of the plasma membrane:
8. Draw a picture of a plasma membrane: Label the hydrophobic and hydrophilic
regions of the phospholipid bilayer, glycoproteins, carbohydrate groups, glycolipids.
9. Why is the plasma membrane refereed to as a fluid mosaic?
10. What organelles would be especially numerous in a cell that produces large amounts
of a protein product?
11. Why are digestive enzymes in a cell enclosed in membrane-bound organelles?
Honors Biology
Test 12/3 and 12/6
Chapter 3 & 6
12. Draw a cell nucleus. Label and give the function of the following structures:
chromatin, nucleolus, nuclear envelope:
13. Consider that plasma membranes allow materials to pass through them. Explain how
this property contributes to homeostasis.
14. Compare a cell to a factory (or something else like a school). Use that analogy to
describe the function of different parts of the cell.
15. Describe the process of diffusion. Name and describe the condition that exists
when the diffusion of a particular substance is complete.
16. What is the relationship between osmosis and diffusion? By definition, what is the
only substance that can carry out osmosis?
17. Name and describe the cell structure that helps prevent damage to certain cells
when they are subjected to high osmotic pressure.
18. Which salt solution is more concentrated: Solution A which contains 18g of salt in 6
L of water or Solution B which contains 24g of salt in 12 L of water?
Honors Biology
Test 12/3 and 12/6
Chapter 3 & 6
19. What would happen to a sample of your red blood cells if they were placed into a
hypotonic solution?
20. Compare and contrast active transport and facilitated diffusion.
21. How do carrier proteins facilitate passive transport of molecules across a
membrane?
22. Use the following terms to prepare a concept map of the various means by which
materials are transported across the cell membrane: (To make a concept map, the
concepts are arranged graphically to represent relationships amount the concepts.
Concepts are enclosed in boxes, and are connected by lines indicative of
relationships- connecting words are written on the lines)
Active transport; passive transport; diffusion; osmosis; facilitated diffusion;
endocytosis; phagocytosis; pinocytosis
23. Know all of the organelles we’ve covered!