Biology Midterm Review Guide

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Questions for midterm review
Use review guide, notes and book
1.
Which variable is the one we change? ___________________
2.
The five levels of organization of Ecology and their definitions
Level of organization
definition
biosphere
population
A single individual
3. Population growth graph: Is the graph to the right, logistic or
exponential?
4. Label the developed and underdeveloped countries below
5. Which part of the microscope is used to bring the
specimen into clear view?
6. List the three Objective magnifications on our
microscope: _______, _______, _____
7. Calculate total magnification when looking through the
10x objective:
Total mag = _______________
7. What building blocks make up proteins? ______________________________
8. Which biomolecule includes enzymes? _____________________________
9. Which biomolecule serves as our main source of food energy? ___________________
11. Enzyme function depends on ____________________ and ______________________
12. Why does an enzyme stop working when it gets too hot?
13. Can an enzyme be used over and over again? __________
14. Which box shows prokaryotic bacteria? ______
15. Which box shows elodea plant cells with chloroplasts? ______
16. Which box shows onion cells with no chloroplasts? _______
A.
B.
C.
D.
17. Which organelle makes this cell to the right a eukaryote? ______________
18. In what two places in the cell can we find ribosomes?
______________________ and _______________________
19. Which organelle is the powerhouse of the cell? _______________________
20. Where is the energy in a sugar molecule? ___________________
21. What process happens in the mitochondrion of all eukaryotic
cells? ___________________
22. What is the ultimate source of energy for all living things? ________________________
23. What is the definition of diffusion?
24. On the diagram to the right, draw arrows indicating what moved where during our experiment
25. In our egg experiment, the egg in the water _________________ weight because water diffused into the
egg.
26. Who figured out the structure of DNA was a double helix? ________________________
27. Which base bonds with G? _____
28 What are the three parts of a nucleotide? _____________, ______________, _____________
29. The two parts of protein synthesis in order of occurance are: _______________ and _______________
31. The image below is showing the assembly of mRNA. Is this transcription or translation?
30. Where does translation take place? ______________________
32. What process is shown below in steps 1-3?
33. In which part of interphase does DNA replication occur?
__________________________
35. In which phase of mitosis do the chromatid sisters get pulled apart by
spindle fibers?_______________________
36. When cytokinesis involves the formation of a cell plate, are we talking about a plant cell or an animal cell?
___________________
37. Identify numbers 1-4 on the diagram to the right.
1. _________________
2. ________________
3. ________________
4. _______________
38. Which structure on the chromosome holds the sister chromatids
together? _______________
39. Does this represent a chromosome before or after DNA
replication?
40. Is the person in the karyotype to the right a boy or a girl? _______________
41. Are gametes formed by mitosis or meiosis? ________________
42. In nondisjunction, chromatid sisters do not separate during what phase of mitosis?
_______________________________
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