Download Name Date - hedrickbiology

Name __________________________ Date ___________________ Period ____
Unit 3 Test Retake Review Sheet
Biology: Chapter 7
Accelerated: Chapters 4 and 5
How did the following people contribute to science?
1. Anton van Leeuwenhoek: ________________________________________________
________________________________________________________________________
2. Robert Hooke: _________________________________________________________
________________________________________________________________________
3. Matthias Schleiden: _____________________________________________________
________________________________________________________________________
4. Theodor Schwann: ______________________________________________________
________________________________________________________________________
5. What are the three parts to the Cell Theory?
a. ______________________________________________________________________
b. ______________________________________________________________________
c. ______________________________________________________________________
6. Why is it called the Cell Theory and not the Cell Hypothesis? ____________________
________________________________________________________________________
________________________________________________________________________
7. One example of a Prokaryote is a _________________________.
8. Prokaryotes only contain cytoplasm, ___________________, cell wall,
___________________, and genetic material.
9. The two main types of Eukaryotes are ______________ and _______________ cells.
10. Define organelle: ______________________________________________________
________________________________________________________________________
Determine the organelle or structure from the given function and/or description:
11. This is a thin, flexible barrier around the cell and serves as a boundary from the
environment by regulating what enters and leaves the cell. ________________________
12. This contains the cell’s genetic material, controls the cell’s activities, and holds the
instructions for how to make proteins. _______________________
13. This supports and protects the cell and is found in plant cells. ___________________
14. This helps the cell keep its shape and helps organelles move along microtubule and
microfilament “tracks.” ____________________________
15. This organelle helps break down food into smaller particles the cell can use (garbage
disposal). _________________________
16. This organelle makes proteins (amino acids are linked together) using the instructions
that come from the nucleus. __________________________
17. This organelle converts food into compounds the cell uses for growth, development,
and movement. It is also known as the Powerhouse of the cell. _____________________
18. These two organelles help provide cells with energy. _____________________ and
_______________________.
19. This organelle is only found in plant cells and is where photosynthesis takes place.
_________________________
20. This is a small, dense structure found within the nucleus. Assembly of ribosomes
begins here. ________________________
21. Circle the organelle that would be found in the cytoplasm: chromatin, nucleolus, cell
membrane, or ribosomes.
22. List the correct sequence for the path a protein takes in the cell.
a. Instructions sent out from the nucleus (mRNA)
b. Ribosome (assembly of amino acids to form protein)
c. ______________________________________________________________________
d. ______________________________________________________________________
e. released from the cell
23. The channels and pumps in the cell membrane, which help to move materials in and
out of the cell, are made of ________________________.
24. Diffusion is the movement of molecules from _______ concentration to ________
concentration.
25. _____________________ occurs because molecules are constantly moving and
colliding with each other.
26. If a cell is placed in an isotonic solution we know that the concentration on both sides
has reached _________________________. Although both sides are equal, molecules
still _____________ across the membrane in both direction.
27. Define Active Transport: ________________________________________________
________________________________________________________________________
28. The word “active” in active transport reminds us that this process requires ________.
29. Osmosis is the diffusion of ________________ across a selectively permeable
membrane, from low to high concentration.
30. What is the main difference between unicellular and multicellular organisms?
________________________________________________________________________
________________________________________________________________________
31. Define Cell Specialization:
________________________________________________________________________
32. List two examples of cell specialization:
a. ______________________________________________________________________
b. ______________________________________________________________________
33. List two cell types within the body: ____________________ and _______________.
34. Define tissue: ________________________________________________________
________________________________________________________________________
35. Define organ: ________________________________________________________
36. Define organ system: __________________________________________________
37. In a hypotonic solution there is a ______________ concentration of solutes and a
_________________ concentration of water. This means that, because of osmosis, water
will flow from the ________________ into the __________________.
38. In a hypertonic solution there is a ___________________ concentration of solutes
and a __________________ concentration of water. This means that, because of
osmosis, water will flow from the _____________________ into the _______________.
39. What does it mean to say that the cell membrane is selectively or semi-permeable?
________________________________________________________________________
40. Draw a mitochondria and label its parts.