C190 Biology- WGU Combined UPDATED
ACTUAL Exam Questions and CORRECT
Answers
atom - CORRECT ANSWER - Basic unit of matter, made of dense nucleus surrounded by
electrons
Molecule - CORRECT ANSWER - A group of atoms chemically bonded together
Macromolecules - CORRECT ANSWER - large polymers, made up of simpler
macromolecules called monomers.
cell - CORRECT ANSWER - The basic unit of structure and function in living things,
smallest biotic thing.
Prokaryote - CORRECT ANSWER - A unicellular organism that lacks a nucleus and
membrane bound organelles
Eukaryote - CORRECT ANSWER - A cell that contains a nucleus and membrane bound
organelles
Organelle - CORRECT ANSWER - specialized structure that performs important cellular
functions within a eukaryotic cell
microorganism - CORRECT ANSWER - single celled organism
Organ - CORRECT ANSWER - A collection of tissues that carry out a specialized
function of the body
,organ system - CORRECT ANSWER - group of organs that work together to perform a
specific function
Organism - CORRECT ANSWER - An individual living thing
Population - CORRECT ANSWER - A group of individuals that belong to the same
species and live in the same area
Community - CORRECT ANSWER - All the different populations that live together in an
area
Ecosystem - CORRECT ANSWER - A system formed by the interaction of a community
of organisms with their abiotic environment
Biomes - CORRECT ANSWER - a broad, regional type of ecosystem characterized by
distinctive climate and soil conditions and a distinctive kind of biological community adapted to
those conditions. ex desert, forest, tundra
Biosphere - CORRECT ANSWER - Consists of all life on Earth and all parts of the Earth
in which life exists, including land, water, and the atmosphere.
Viruses - CORRECT ANSWER - tiny particles, smaller than bacteria and other pathogens,
which must invade living cells in order to reproduce; when they invade, the cells are damaged or
destroyed in the process releasing new particles to infect other cells. non living
Biotic - CORRECT ANSWER - living things
Abiotic - CORRECT ANSWER - Non-living things
scientific inquiry - CORRECT ANSWER - The diverse ways in which scientists study the
natural world and propose explanations based on evidence they gather.
,Biological Macromolecules - CORRECT ANSWER - carbohydrates, lipids, proteins,
nucleic acids
Carbohydrates - CORRECT ANSWER - Broken down to glucose to provide energy.
Lipids - CORRECT ANSWER - Energy-rich organic compounds, such as fats, oils, and
waxes, that are made of carbon, hydrogen, and oxygen.
Proteins - CORRECT ANSWER - Chains of amino acids
nucleic acids - CORRECT ANSWER - DNA and RNA
Matter - CORRECT ANSWER - Anything that has mass and takes up space
Parts of an atom - CORRECT ANSWER - protons, neutrons, electrons
Protons - CORRECT ANSWER - positively charged subatomic particles
Neutrons - CORRECT ANSWER - the particles of the nucleus that have no charge
Electrons - CORRECT ANSWER - negatively charged subatomic particles
shells (orbitals) - CORRECT ANSWER - Where the electrons generally are; found at
different distances from the nucleus. First shell has room for 2 electrons, while the 2nd and 3rd
shell have room for 8 electrons.
mass of neutron and protons - CORRECT ANSWER - 1 atomic mass unit
, mass of electron - CORRECT ANSWER - 0 atomic mass unit
Ions - CORRECT ANSWER - positively and negatively charged atoms
coavalent bond - CORRECT ANSWER - A bond that is formed between atoms through
the sharing of valence electrons. Strong bond
ionic bond - CORRECT ANSWER - Formed when one or more electrons are transferred
from one atom to another, kinda strong bond.
Hydrogen bond - CORRECT ANSWER - Attraction between a slightly positive hydrogen
atom and a slightly negative atom. Weak bond
Electronegativity - CORRECT ANSWER - the ability of an atom to attract electrons when
the atom is in a compound
chemical bonds - CORRECT ANSWER - the attractive forces that hold atoms together
Solution - CORRECT ANSWER - A homogeneous mixture of two or more substances
Solvent - CORRECT ANSWER - A liquid substance capable of dissolving other
substances
Solute - CORRECT ANSWER - Substance being dissolved
aqueous solution - CORRECT ANSWER - a solution in which water is the solvent
Hydrophilic - CORRECT ANSWER - water loving, substances that dissolve in water
ACTUAL Exam Questions and CORRECT
Answers
atom - CORRECT ANSWER - Basic unit of matter, made of dense nucleus surrounded by
electrons
Molecule - CORRECT ANSWER - A group of atoms chemically bonded together
Macromolecules - CORRECT ANSWER - large polymers, made up of simpler
macromolecules called monomers.
cell - CORRECT ANSWER - The basic unit of structure and function in living things,
smallest biotic thing.
Prokaryote - CORRECT ANSWER - A unicellular organism that lacks a nucleus and
membrane bound organelles
Eukaryote - CORRECT ANSWER - A cell that contains a nucleus and membrane bound
organelles
Organelle - CORRECT ANSWER - specialized structure that performs important cellular
functions within a eukaryotic cell
microorganism - CORRECT ANSWER - single celled organism
Organ - CORRECT ANSWER - A collection of tissues that carry out a specialized
function of the body
,organ system - CORRECT ANSWER - group of organs that work together to perform a
specific function
Organism - CORRECT ANSWER - An individual living thing
Population - CORRECT ANSWER - A group of individuals that belong to the same
species and live in the same area
Community - CORRECT ANSWER - All the different populations that live together in an
area
Ecosystem - CORRECT ANSWER - A system formed by the interaction of a community
of organisms with their abiotic environment
Biomes - CORRECT ANSWER - a broad, regional type of ecosystem characterized by
distinctive climate and soil conditions and a distinctive kind of biological community adapted to
those conditions. ex desert, forest, tundra
Biosphere - CORRECT ANSWER - Consists of all life on Earth and all parts of the Earth
in which life exists, including land, water, and the atmosphere.
Viruses - CORRECT ANSWER - tiny particles, smaller than bacteria and other pathogens,
which must invade living cells in order to reproduce; when they invade, the cells are damaged or
destroyed in the process releasing new particles to infect other cells. non living
Biotic - CORRECT ANSWER - living things
Abiotic - CORRECT ANSWER - Non-living things
scientific inquiry - CORRECT ANSWER - The diverse ways in which scientists study the
natural world and propose explanations based on evidence they gather.
,Biological Macromolecules - CORRECT ANSWER - carbohydrates, lipids, proteins,
nucleic acids
Carbohydrates - CORRECT ANSWER - Broken down to glucose to provide energy.
Lipids - CORRECT ANSWER - Energy-rich organic compounds, such as fats, oils, and
waxes, that are made of carbon, hydrogen, and oxygen.
Proteins - CORRECT ANSWER - Chains of amino acids
nucleic acids - CORRECT ANSWER - DNA and RNA
Matter - CORRECT ANSWER - Anything that has mass and takes up space
Parts of an atom - CORRECT ANSWER - protons, neutrons, electrons
Protons - CORRECT ANSWER - positively charged subatomic particles
Neutrons - CORRECT ANSWER - the particles of the nucleus that have no charge
Electrons - CORRECT ANSWER - negatively charged subatomic particles
shells (orbitals) - CORRECT ANSWER - Where the electrons generally are; found at
different distances from the nucleus. First shell has room for 2 electrons, while the 2nd and 3rd
shell have room for 8 electrons.
mass of neutron and protons - CORRECT ANSWER - 1 atomic mass unit
, mass of electron - CORRECT ANSWER - 0 atomic mass unit
Ions - CORRECT ANSWER - positively and negatively charged atoms
coavalent bond - CORRECT ANSWER - A bond that is formed between atoms through
the sharing of valence electrons. Strong bond
ionic bond - CORRECT ANSWER - Formed when one or more electrons are transferred
from one atom to another, kinda strong bond.
Hydrogen bond - CORRECT ANSWER - Attraction between a slightly positive hydrogen
atom and a slightly negative atom. Weak bond
Electronegativity - CORRECT ANSWER - the ability of an atom to attract electrons when
the atom is in a compound
chemical bonds - CORRECT ANSWER - the attractive forces that hold atoms together
Solution - CORRECT ANSWER - A homogeneous mixture of two or more substances
Solvent - CORRECT ANSWER - A liquid substance capable of dissolving other
substances
Solute - CORRECT ANSWER - Substance being dissolved
aqueous solution - CORRECT ANSWER - a solution in which water is the solvent
Hydrophilic - CORRECT ANSWER - water loving, substances that dissolve in water
