Bio 1000 Exam Questions and Correct Answers
Atom
Smallest unit of an element; composed of electrons, protons, and neutrons
Cell
Structural and functional unit of all living organisms
Tissue
Group of cells with a common structure and function
Organ
Composed of tissues and functioning together for a specific task
Organ System
Composed of several organs working together
Organism
An individual; complex individuals
Population
Organisms of the same species in a particular area
Community
Interacting populations in a particular area
Ecosystem
Community plus the physical environment
,Biosphere
Regions of the Earth's crust, waters, and atmosphere inhabited by living organisms
Metabolism
All the chemical reactions that occur in the cell..Photosynthesis, Building proteins, and
breakdown of sugars and food
Photosynthesis
Transform solar energy to chemical energy
Homeostasis
Maintain internal conditions
Ex: 98.6 temp /diabetes
Growth
Increase in size or number of cells
Development
Changes that take place from conception to death
Observation
Not just watching:
-close observations with recording
-Visual, auditory, smell, feet, etc
-Can extend using technology: ex is a thermometer
Hypothesis
,Testable possible explanation for the observations.
-uses inductive reasoning: combine isolated facts into a cohesive whole
Experiment
Use deductive reasoning (if..then..)
-requires good experimental data
-Often use models
Scientific Theory
Supported by a broad range of observations, experiments, and data
Ex: cell, gravity, evolution
Experimental Variable
Independent- factor of the experiment being tested
Response Variable
Dependent- Result of change that occurs due to the experimental variable
Control Group
Sample that goes through all the steps in an experiment but does not contain the capable
being tested; a standard against which the results of an experiment are being tested
Technology
Application of scientific information to solve or address a need of humans.
Biodiversity
-Possible loss of habitat / resources of food
-possible loss of biodiversity that holds disease cures
, Emerging Diseases
Vaccinations and anitbiotics
Climate Change
-Can result in biodiversity and habitat loss
-Issues with agriculture
Element
Substance that can't be broken down into smaller parts
Proton
Positive subatomic particle located in the nucleus and assigned one atomic mass unit.
Neutron
Neutral subatomic particle, located in the nucleus and assigned one atomic mass unit.
Atomic Number
# of protons in the nucleus
Mass Number
#of protons + # of neutrons
Atomic Mass
Average of an atom mass units for all the isotopes of an atom.
Isotope
Same element, same number of protons, different number of neutrons
Electron Shell
Atom
Smallest unit of an element; composed of electrons, protons, and neutrons
Cell
Structural and functional unit of all living organisms
Tissue
Group of cells with a common structure and function
Organ
Composed of tissues and functioning together for a specific task
Organ System
Composed of several organs working together
Organism
An individual; complex individuals
Population
Organisms of the same species in a particular area
Community
Interacting populations in a particular area
Ecosystem
Community plus the physical environment
,Biosphere
Regions of the Earth's crust, waters, and atmosphere inhabited by living organisms
Metabolism
All the chemical reactions that occur in the cell..Photosynthesis, Building proteins, and
breakdown of sugars and food
Photosynthesis
Transform solar energy to chemical energy
Homeostasis
Maintain internal conditions
Ex: 98.6 temp /diabetes
Growth
Increase in size or number of cells
Development
Changes that take place from conception to death
Observation
Not just watching:
-close observations with recording
-Visual, auditory, smell, feet, etc
-Can extend using technology: ex is a thermometer
Hypothesis
,Testable possible explanation for the observations.
-uses inductive reasoning: combine isolated facts into a cohesive whole
Experiment
Use deductive reasoning (if..then..)
-requires good experimental data
-Often use models
Scientific Theory
Supported by a broad range of observations, experiments, and data
Ex: cell, gravity, evolution
Experimental Variable
Independent- factor of the experiment being tested
Response Variable
Dependent- Result of change that occurs due to the experimental variable
Control Group
Sample that goes through all the steps in an experiment but does not contain the capable
being tested; a standard against which the results of an experiment are being tested
Technology
Application of scientific information to solve or address a need of humans.
Biodiversity
-Possible loss of habitat / resources of food
-possible loss of biodiversity that holds disease cures
, Emerging Diseases
Vaccinations and anitbiotics
Climate Change
-Can result in biodiversity and habitat loss
-Issues with agriculture
Element
Substance that can't be broken down into smaller parts
Proton
Positive subatomic particle located in the nucleus and assigned one atomic mass unit.
Neutron
Neutral subatomic particle, located in the nucleus and assigned one atomic mass unit.
Atomic Number
# of protons in the nucleus
Mass Number
#of protons + # of neutrons
Atomic Mass
Average of an atom mass units for all the isotopes of an atom.
Isotope
Same element, same number of protons, different number of neutrons
Electron Shell
