MTTC Integrated Science Exam Questions With Correct Answers
Already Passed 2025
1. Independen
t Variable The experimental factor that is manipulated; the variable whose ettect is
being studied. Placed on the x-axis (horizontal) on a graph.
2. Dependent
Vari- able The variable that is measured in an experiment. Placed on the y-axis
(vertical) on a graph.
3. Scientific theory Must be repeatable. Possible to be disproved and capable of change.
4. Sampling Random sampling is the preferred, but isn't always possible. A large
and Sample
Size sample will yield the most accurate information.
5. Manipulatin Only one variable should be manipulated at a time.
g Variables
6. Control variable A factor that is held constant to test the relative impact of an independen
variable
7. Response to In most cases, 911 should be called immediately.
Lab Accident
8. Response to
Fire in a Do not use a fire extinguisher. Just place a watch glass or wet towel over it
Beaker or Flask
to cut ott Oxygen supply.
9. Guidelines
for
Dissections Specimens should be rinsed before using. Latex glover preferred.
Avoid use of formaldehyde/dispose of correctly. Need to provide
10. Storing alternative for students with moral objections to assingment.
Lab
Chemicals Store all in secured, dry area. Acids locked in separate area.
11. Origin of Biologi-
cal Sciences
Traced back to ancient Greeks (i.e. Aristotle)
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46
, MTTC Integrated Science Exam Questions With Correct Answers
Already Passed 2025
12. Andrea Vesalius Dissected human bodies; created a book on anatomy
13. Anton van Father of Microscopy, first to see and describe bacteria, yeast plants, and
Leeuwenhoek micro- scopic life found in water
14. Scanning Elec- Instead of a light, a beam of electrons pass through specimen.
tron
Microscope Resolution about 1,000 times greater than light microscope. Will kill
(SEM) specimen though.
15. Robert Hooke Famous for Hook's law describing elasticity. But called a "virtuoso",
able to con- tribute findings to any major field in science
16. Carl Von Lin- Famous for binomial system of nomenclature. Each living organism has
naeus
two names, a genus and species. Considered father of modern ecology
and taxonomy
17. Pasteur Discovered role of microorganisms in the cause of disease, pasteurization,
and
rabies vaccine.
18. Koch's Postulates Specific diseases caused by specific pathogens
19. Cell theory Cell is the common structural unit in plants and animals. Proposed by
Mattias
Scheleiden and Schwann.
20. Watson and Crick Discovered the structure of DNA was a double helix (in the 1950s). Mad
it
possible to understand how DNA replicated and synthesized proteins
21. Commonalitie -Systems, order, and organization
s Among all
Sciences -Evidence, models, and explanation
-Constancy, change, and measurement
-Evolution and equilibrium
2/
46
, MTTC Integrated Science Exam Questions With Correct Answers
Already Passed 2025
-Form and function
22. All evidence is empirical; all evidence must be observed by the five sense
3/
46
, MTTC Integrated Science Exam Questions With Correct Answers
Already Passed 2025
Empirical Evi-
dence
23. Peer- Most accepted source for information on scientific experiments and studies
reviewed
Journals
24. Air Pollution Chemicals in the air; include carbon monoxide, sulfur dioxide, and
chlorofluoro- carbons (CFC's)
25. Water Pollution Contaminants enter water by ground runott or by leaching
26. Thermal pollu- Factories dump water at high temperatures which increases normal water
tion
tem- peratures. This means the water can hold less gas, disrupting the
27. Greenhous ecosystem
e gasses
I.e. carbon dioxide and nitrous oxide. Concentration of them is increased
by burning fossil fuels. These gasses absorb and trap heat, therefore
warming the planet
28. Acid ran Sulfur and nitrous oxides converted to acids and contaminate water suppli
29. Prokaryotes Single-celled organisms that do not have a membrane-bound nucleus
30. Flagella Appendages on bacteria cells; used for movement
31. Pili Used by bacteria cells to attach to other cells
32. Cell Wall a thin membrane around the cytoplasm of a cell
33. Cell membrane a phospholipid layer that covers a cell's surface and acts as a barrier
between the inside of a cell and the cell's environment
34. Eukaryotes organisms whose cells contain a nucleus and other membrane bound
organelles
35. Nucleus
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30
Already Passed 2025
1. Independen
t Variable The experimental factor that is manipulated; the variable whose ettect is
being studied. Placed on the x-axis (horizontal) on a graph.
2. Dependent
Vari- able The variable that is measured in an experiment. Placed on the y-axis
(vertical) on a graph.
3. Scientific theory Must be repeatable. Possible to be disproved and capable of change.
4. Sampling Random sampling is the preferred, but isn't always possible. A large
and Sample
Size sample will yield the most accurate information.
5. Manipulatin Only one variable should be manipulated at a time.
g Variables
6. Control variable A factor that is held constant to test the relative impact of an independen
variable
7. Response to In most cases, 911 should be called immediately.
Lab Accident
8. Response to
Fire in a Do not use a fire extinguisher. Just place a watch glass or wet towel over it
Beaker or Flask
to cut ott Oxygen supply.
9. Guidelines
for
Dissections Specimens should be rinsed before using. Latex glover preferred.
Avoid use of formaldehyde/dispose of correctly. Need to provide
10. Storing alternative for students with moral objections to assingment.
Lab
Chemicals Store all in secured, dry area. Acids locked in separate area.
11. Origin of Biologi-
cal Sciences
Traced back to ancient Greeks (i.e. Aristotle)
1/
46
, MTTC Integrated Science Exam Questions With Correct Answers
Already Passed 2025
12. Andrea Vesalius Dissected human bodies; created a book on anatomy
13. Anton van Father of Microscopy, first to see and describe bacteria, yeast plants, and
Leeuwenhoek micro- scopic life found in water
14. Scanning Elec- Instead of a light, a beam of electrons pass through specimen.
tron
Microscope Resolution about 1,000 times greater than light microscope. Will kill
(SEM) specimen though.
15. Robert Hooke Famous for Hook's law describing elasticity. But called a "virtuoso",
able to con- tribute findings to any major field in science
16. Carl Von Lin- Famous for binomial system of nomenclature. Each living organism has
naeus
two names, a genus and species. Considered father of modern ecology
and taxonomy
17. Pasteur Discovered role of microorganisms in the cause of disease, pasteurization,
and
rabies vaccine.
18. Koch's Postulates Specific diseases caused by specific pathogens
19. Cell theory Cell is the common structural unit in plants and animals. Proposed by
Mattias
Scheleiden and Schwann.
20. Watson and Crick Discovered the structure of DNA was a double helix (in the 1950s). Mad
it
possible to understand how DNA replicated and synthesized proteins
21. Commonalitie -Systems, order, and organization
s Among all
Sciences -Evidence, models, and explanation
-Constancy, change, and measurement
-Evolution and equilibrium
2/
46
, MTTC Integrated Science Exam Questions With Correct Answers
Already Passed 2025
-Form and function
22. All evidence is empirical; all evidence must be observed by the five sense
3/
46
, MTTC Integrated Science Exam Questions With Correct Answers
Already Passed 2025
Empirical Evi-
dence
23. Peer- Most accepted source for information on scientific experiments and studies
reviewed
Journals
24. Air Pollution Chemicals in the air; include carbon monoxide, sulfur dioxide, and
chlorofluoro- carbons (CFC's)
25. Water Pollution Contaminants enter water by ground runott or by leaching
26. Thermal pollu- Factories dump water at high temperatures which increases normal water
tion
tem- peratures. This means the water can hold less gas, disrupting the
27. Greenhous ecosystem
e gasses
I.e. carbon dioxide and nitrous oxide. Concentration of them is increased
by burning fossil fuels. These gasses absorb and trap heat, therefore
warming the planet
28. Acid ran Sulfur and nitrous oxides converted to acids and contaminate water suppli
29. Prokaryotes Single-celled organisms that do not have a membrane-bound nucleus
30. Flagella Appendages on bacteria cells; used for movement
31. Pili Used by bacteria cells to attach to other cells
32. Cell Wall a thin membrane around the cytoplasm of a cell
33. Cell membrane a phospholipid layer that covers a cell's surface and acts as a barrier
between the inside of a cell and the cell's environment
34. Eukaryotes organisms whose cells contain a nucleus and other membrane bound
organelles
35. Nucleus
3/
30
