Download Answers to Keystone packet

MODULE 1
1.
2.
3.
A
D
A- Eukaryotes contain nucleus and membrane-bound organelles, prokaryotes do not. B- Eukaryotes must be larger to accommodate the
nucleus/organelles. C- cytoplasm, cell membrane
4.
5.
6.
7.
8.
9.
D
C
B
D
B
A- Proteins are composed of C, H, O, and N. They are composed of amino acid monomers. B- Proteins C, H, O, N and amino acid monomers.
Carbohydrates C, H, O and monosaccharide monomers. C- Proteins various functions (enzymes, muscle, transport), carbs energy
(glucose/starch) and structure (cellulose).
10.
11.
12.
13.
14.
15.
D
A
B
B
A
A- formulas, photo-endergonic and respiration-exergonic B- In paragraph form, explain part A.
16. B
17. B
18. A- active transport B- explain active transport (pumps, utilize proteins, low to high, energy C- compare active transport with another form of
transport (passive, diffusion, facilitated diffusion, endo/exocytosis)
19. C
20. D
MODULE 2
21. C
22. D
23. A- anaphase I or anaphase II (nondisjunction) B- meiosis failure of homologous pairs in AI and sister chromatids in AII, mitosis failure of sister chromatids
in anaphase C- meiosis (abnormal number of chromosomes in gametes resulting in chromosomal disorders like Down, failing to separate tetrads in AI or
sister chromatids in AII) mitosis (failing to separate sister chromatids in anaphase leading to cancer, but does not affect offspring)
24. D
25. D
26. D
27. A- cross red X white B- In paragraph form, explain part A. C- 25% red, 25% white, 50% roan
28. D
29. B
30. C
31. A
32. A
33. B
34. D
35. C
36. C
37. A- mice more closely related to rats (101 base differences) compared to cow and rat (136 base differences) B- common ancestor C- monkey and rat
more closely related than monkey and mouse, therefore the monkey and rat have a more recent common ancestor.
38. D
39. C
40. C
41. D
42. A
43. A
44. C
45. B
46. A- number of wolves (answers can vary) B- moose population increased (answers can vary)