MTTC Integrated Science Exam Questions
with Correct Answers
Koch's Postulates Correct Answ_Specific diseases caused by specific pathogens
Cell theory Correct Answ_Cell is the common structural unit in plants and animals. Proposed
by Mattias Scheleiden and Schwann.
Watson and Crick Correct Answ_Discovered the structure of DNA was a double helix (in the
1950s). Made it possible to understand how DNA replicated and synthesized proteins
Commonalities Among all Sciences Correct Answ_- Systems, order, and organization
- Evidence, models, and explanation
- Constancy, change, and measurement
- Evolution and equilibrium
- Form and function
Empirical Evidence Correct Answ_All evidence is empirical; all evidence must be observed
by the five sense.
,Peer-reviewed Journals Correct Answ_Most accepted source for information on scientific
experiments and studies
Air Pollution Correct Answ_Chemicals in the air; include carbon monoxide, sulfur dioxide,
and chlorofluorocarbons (CFC's)
Water Pollution Correct Answ_Contaminants enter water by ground runoff or by leaching
Thermal pollution Correct Answ_Factories dump water at high temperatures which increases
normal water temperatures. This means the water can hold less gas, disrupting the ecosystem
Greenhouse gasses Correct Answ_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
Acid ran Correct Answ_Sulfur and nitrous oxides converted to acids and contaminate water
supplies
,Prokaryotes Correct Answ_Single-celled organisms that do not have a membrane-bound
nucleus
Flagella Correct Answ_Appendages on bacteria cells; used for movement
Pili Correct Answ_Used by bacteria cells to attach to other cells
Cell Wall Correct Answ_a thin membrane around the cytoplasm of a cell
Cell membrane Correct Answ_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
Eukaryotes Correct Answ_organisms whose cells contain a nucleus and other membrane
bound organelles
Nucleus Correct Answ_a part of the cell containing DNA and RNA and responsible for
growth and reproduction
, Nucleolus Correct Answ_The organelle where ribosomes are made, synthesized and partially
assembled, located in the nucleus
Ribosomes Correct Answ_site of protein synthesis
Endoplasmic Reticulum Correct Answ_an internal membrane system in which components
of cell membrane and some proteins are constructed
Golgi apparatus Correct Answ_stack of membranes in the cell that modifies, sorts, and
packages proteins from the endoplasmic reticulum
Lysosomes Correct Answ_An organelle containing digestive enzymes; found mostly in
animal cells
Mitochondria Correct Answ_Powerhouse of the cell, organelle that is the site of ATP
(energy) production
Plastids Correct Answ_Include chloroplasts, chromoplasts, and amyloplasts (leucoplasts);
only found in photosynthetic organisms
with Correct Answers
Koch's Postulates Correct Answ_Specific diseases caused by specific pathogens
Cell theory Correct Answ_Cell is the common structural unit in plants and animals. Proposed
by Mattias Scheleiden and Schwann.
Watson and Crick Correct Answ_Discovered the structure of DNA was a double helix (in the
1950s). Made it possible to understand how DNA replicated and synthesized proteins
Commonalities Among all Sciences Correct Answ_- Systems, order, and organization
- Evidence, models, and explanation
- Constancy, change, and measurement
- Evolution and equilibrium
- Form and function
Empirical Evidence Correct Answ_All evidence is empirical; all evidence must be observed
by the five sense.
,Peer-reviewed Journals Correct Answ_Most accepted source for information on scientific
experiments and studies
Air Pollution Correct Answ_Chemicals in the air; include carbon monoxide, sulfur dioxide,
and chlorofluorocarbons (CFC's)
Water Pollution Correct Answ_Contaminants enter water by ground runoff or by leaching
Thermal pollution Correct Answ_Factories dump water at high temperatures which increases
normal water temperatures. This means the water can hold less gas, disrupting the ecosystem
Greenhouse gasses Correct Answ_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
Acid ran Correct Answ_Sulfur and nitrous oxides converted to acids and contaminate water
supplies
,Prokaryotes Correct Answ_Single-celled organisms that do not have a membrane-bound
nucleus
Flagella Correct Answ_Appendages on bacteria cells; used for movement
Pili Correct Answ_Used by bacteria cells to attach to other cells
Cell Wall Correct Answ_a thin membrane around the cytoplasm of a cell
Cell membrane Correct Answ_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
Eukaryotes Correct Answ_organisms whose cells contain a nucleus and other membrane
bound organelles
Nucleus Correct Answ_a part of the cell containing DNA and RNA and responsible for
growth and reproduction
, Nucleolus Correct Answ_The organelle where ribosomes are made, synthesized and partially
assembled, located in the nucleus
Ribosomes Correct Answ_site of protein synthesis
Endoplasmic Reticulum Correct Answ_an internal membrane system in which components
of cell membrane and some proteins are constructed
Golgi apparatus Correct Answ_stack of membranes in the cell that modifies, sorts, and
packages proteins from the endoplasmic reticulum
Lysosomes Correct Answ_An organelle containing digestive enzymes; found mostly in
animal cells
Mitochondria Correct Answ_Powerhouse of the cell, organelle that is the site of ATP
(energy) production
Plastids Correct Answ_Include chloroplasts, chromoplasts, and amyloplasts (leucoplasts);
only found in photosynthetic organisms
