Colegio Metropolitano
Science – 2nd Course
Adriana Morales
Name_______________________________________________ Code No. ________________
Date ___________________________________Score ________________________
Final Knowledge Check
I Period
Contents to be evaluated:
1. Scientific Explanations
2. Classifying and Exploring Life
3. From a cell to an Organism
4. Cell Structure and Function
5. Reproduction of Organisms
Standard:
SS Can… Develop projects based on the formulation of questions, the development of the
hypothesis, the analysis, and the interpretation of data, taking in consideration the margin of
error in the experiment.
Scoring
Series
Points
I
5pts
II
5pts
III
9pts
IV
15pts
V
6pts
VI
7pts
VII
8pts
VIII
10pts
IX
3pts
X
9pts
XI
23pts
Total
/100 pts.
General Comments / Feedback:
General Instructions: Answer all the activities in this test clearly and correctly. Remember to
use BLACK or BLUE pen. It is forbidden to borrow any type of material, to use liquid paper or
comment during the assessing time.
Series I: Identify each statement as hypothesis or theory. For hypothesis write H and
for theory write T on the line. (1 point each)
______ 1. The growth rate of grass is related to the amount of light it receives
______ 2. All life is related to and comes from a common ancestor.
______ 3. The universe began about 15 billion years ago.
______ 4. New tennis balls bounce more than old tennis balls.
______ 5. Caffeine raises blood pressure.
Series II: On the line before each term, write the letter of the definition that matches
it correctly. (0.5 points each.) You need distractors in your answers (so more choices
than they can actually have)
______ 6. Biology
______ 7. Bias
______ 8. Homeostasis
b. act of recording and describing events or
processes in a careful and organized way
c. living things that maintain an internal
environment relatively stable
______ 9. Metabolism
d. molecule that contains the universal genetic
code
______ 10. DNA
e. point of view that is personal and not
scientific
______ 11. Control Group
______ 12. Independent Variable
______ 13. Dependent variable
______ 14. Biosphere
______ 15. Observation
a. In one experiment, the group exposed to the
same conditions that the experimental minus
one variable
f. planet of living beings
g. combination of chemical reactions through
which an organism accumulates or breaks
down substances.
h. In an experiment, the variable being
manipulated
i. In an experiment, the variable that responds to
the change
j. study of life
k. macromolecules
l. atmosphere
Series III Complete the following diagram of the scientific method, then define the terms that
comprise it. (1 point each)
Ask Questions
17.
16._____________
19.
18._______________
Test your hypothesis
20.
22.
21._____________
24.
23.____________________
Series IV Experiment Parts Identification. Read the background information about the experimental
scenario. Then, complete the numbered steps below. 15 points total
Background Information: A student investigated whether ants dig more tunnels in the light or in the
dark. She thought that ants used the filtered light that penetrated the upper layers of earth and
would dig more tunnels during the daytime. Ten ant colonies were set up in commercial ant farms
with the same number and type of ants per ant farm. The same amount of food was given to
each colony, and the colonies were in the same temperature. Five of the colonies were exposed
to normal room light and five were covered with black construction paper so they did not receive
light. Every other day for 19 days the length of the tunnels was measured in millimeters using a
string and a ruler.
25. Hypothesis
Identify the experimenter’s hypothesis in an “If…then…” format. Make sure the hypothesis uses
measurable variables. 2 points
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26. Identification of Experiment Parts
Identify the parts of a controlled experiment listed in the table below. 6 points
Independent Variable
Dependent Variable
Control group (s)
Experimental group (s)
27. Data Analysis
How could the data below be analyzed? (Be specific…don’t just say “graph it…” or “average it…”
What would be graphed? What labels would be on each of the axes? What would be
averaged?) 2 points
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28. Conclusions
What conclusions can be made from the data? Does the data support or reject the hypothesis?
Use data to justify your response. 3 points
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29. Future Improvements
How could the experimental procedure be improved for future experiments? Identify at least two
improvements. 2 points
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Series V Use the classification key to identify the organism. Highlight the correct answer. 3 points
each.
.
30. This animal was found yesterday at school. Use the dichotomous key to identify it.
Missing questions for #30
a. Myotis lucifugus
c. Procyon lotor
b. Dipelphis marsupialis
d. Castor canadensis
31. According to the diagram, what animal does not fly, has no fur on its tail, and has a short tail
with not fur?
a. Myotis lucifugus
c. Procyon lotor
b. Dipelphis marsupialis
d. Castor canadensis
Series VI On each line, write the term from the word bank that correctly completes each sentence.
Not all terms are used. (1 point each) Add 1 more distractors.
cell differentiation
sister chromatid(s)
organ(s)
organ system(s)
DNA Replication
tissue(s)
daughter cell(s)
stem cell(s)
sytem
32. ________________________ occurs during interphase.
33. Cytokinesis results in two identical ________________________.
34. An example of specialized cell is a(n) __________________________.
35. An X-shaped chromosome is made of two identical _______________________.
36. A group of different organs working together makes up a(n)__________________________.
37. The process by which cells become specialized is called _____________________________.
38. A group of specialized cells working together to carry out a specific task is called a(n)
____________________________.
Series VII: In the space to the left, write U next to each statement that correctly identifies unicellular
organisms. Write M next to the statement that identifies multicellular organisms. Write B next to the
statement that applies for both organisms. (1pt each)
______39. These organisms consist of cells.
______40. Each cell must carry out all life processes.
______41. Cells are specialized and perform specific functions.
______42. These organisms can be prokaryotes and eukaryotes.
______43. These organisms are always eukaryotes.
______44. Cells in these organisms differentiate.
______45. These organisms have stem cells.
______46. These organisms have tissues.
Series VIII Sketch and label the phases of Mitosis. Your first phase must be Interphase and you must
finish with the two daughter cells. Your drawings must be in order. (47 – 50) 10 points total for
drawing and labeling. (10pts) Check the numbers here. The last one in the previous series is 46.
Series IX On the line before each question, write the letter of the correct answer. (1pt each)
______51. Which phase occurs first?
a. prophase I
c. metaphase I
b. telophase I
d. anaphase I
______52. Which process is NOT a type of asexual reproduction?
a. fission
c. budding
b. mating
d. fragmentation
______53. Which process is a step in sexual reproduction?
a. budding
c. regeneration
b. fertilization
d. fission
Series X On the line before each definition, write the letter of the term that matches it correctly.
Each term is used only once. (1 pt each)
______54. cells containing one chromosome
______59. cell division in one-celled
from each pair.
eukaryotes.
______55. produces sex cells
______60. offspring growing on the body of its
______56. separate during meiosis I
______57. cell containing pairs of
chromosomes
______58. cell division in prokaryotes that
forms two genetically identical cells.
parent
______61. the joining of an egg cell and a
sperm cell
______62. producing genetically identical
organisms in a laboratory
d. homologous chromosomes
e. mitotic
f. fission
a. diploid
b. haploid
c. meiosis
g. budding
h. cloning
i. fertilization
Series XI Respond to each statement in the lines provided. How are points divided by question to
= 23 points?
63. The body cells of a cat have 38 chromosomes. Tell how many chromosomes the body cells of
normal kittens will have. Explain how you know. (5pts)
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64. Relate the number of chromosomes in a mouse’s sex cells with the number in its body cells.
(5pts)
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65. Draw a Venn Diagram. Compare and contrast vegetative reproduction and animal
regeneration. (7pts)
66.
Predict what would happen if a mistake occurred in the replication or separation of
chromosomes during meiosis. (6pts)
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