WGU - C190 EXAM QUESTIONS WITH
CORRECT ANSWERS
Coevolution Event - Correct Answers -The process by which two or more species
evolve in tandem by exerting selection pressures on each other
Speciation Event - Correct Answers -A lineage-splitting event that produces two or more
separate species.
Phylogenetic Event - Correct Answers -The evolutionary development and history of a
species or higher taxonomic grouping of organisms. Also called phylogenesis. The
evolutionary development of an organ or other part of an organism
Homology Event - Correct Answers -Shared trait among species
Ecosystem - Correct Answers -A system that includes all living organisms (biotic
factors) in an area as well as its physical environment (abiotic factors) functioning
together as a unit. Supplement. An ecosystem is made up of plants, animals,
microorganisms, soil, rocks, minerals, water sources and the local atmosphere
interacting with one another
Biosphere - Correct Answers -The biosphere is the zone of air, land and water where
organisms exist. It is commonly known as the global sum of all ecosystems
Commensalism - Correct Answers -a relationship between individuals of two species in
which one species obtains food or other benefits from the other without either harming
or benefiting the latter.
Mutation - Correct Answers -A Mutation occurs when a DNA gene is damaged or
changed in such a way as to alter the genetic message carried by that gene.
Gene Flow - Correct Answers -is the transfer of alleles or genes from one population to
another. Migration into or out of a population may be responsible for a marked change
in allele frequencies (the proportion of members carrying a particular variant of a gene).
Genetic Drift - Correct Answers -is the change in the frequency of an existing gene
variant (allele) in a population due to RANDOM sampling of organisms. Ex. Earthquake
or disaster
, Artificial Selection - Correct Answers -The breeding of plants and animals to produce
desirable traits
Krebs Cycle/Citric Acid Cycle - Correct Answers -release stored energy through the
oxidation of acetyl-CoA derived from carbohydrates, fats, and proteins into carbon
dioxide and chemical energy
Calvin Cycle - Correct Answers -is the set of chemical reactions that take place in
chloroplasts during photosynthesis.
Electron Transport Chain - Correct Answers -A group of compounds that pass electron
from one to another via redox reactions coupled with the transfer of proton across a
membrane to create a proton gradient that drives ATP synthesis. (Produces most ATP)
Glycolysis - Correct Answers -The process in cell metabolism by which carbohydrates
and sugars, especially glucose, are broken down, producing ATP and pyruvic acid.
Fermentation - Correct Answers -Fermentation is an anaerobic process in which energy
can be released from glucose even though oxygen is not available.
Oxidation - Correct Answers -Specifically, it means the substance that gives away
electrons is oxidized
Nucleus - Correct Answers -DNA Storage
Mitochondrion - Correct Answers -Energy production
Smooth Endoplasmic Reticulum (SER) - Correct Answers -Lipid production;
Detoxification
Rough Endoplasmic Reticulum (RER) - Correct Answers -Protein production; in
particular for export out of the cell
Ribosomes - Correct Answers -The molecular machines that use the instructions
contained in the DNA to build all the proteins needed by the cell.
Peroxisome - Correct Answers -Lipid Destruction; contains oxidative enzymes
Lysosome - Correct Answers -Protein destruction
Ionic Bond - Correct Answers -is the complete transfer of valence electron(s) between
atoms. (Strongest)
Covalent Bond - Correct Answers -also called a molecular bond, is a chemical bond that
involves the sharing of electron pairs between atoms. (Middle Strength)
CORRECT ANSWERS
Coevolution Event - Correct Answers -The process by which two or more species
evolve in tandem by exerting selection pressures on each other
Speciation Event - Correct Answers -A lineage-splitting event that produces two or more
separate species.
Phylogenetic Event - Correct Answers -The evolutionary development and history of a
species or higher taxonomic grouping of organisms. Also called phylogenesis. The
evolutionary development of an organ or other part of an organism
Homology Event - Correct Answers -Shared trait among species
Ecosystem - Correct Answers -A system that includes all living organisms (biotic
factors) in an area as well as its physical environment (abiotic factors) functioning
together as a unit. Supplement. An ecosystem is made up of plants, animals,
microorganisms, soil, rocks, minerals, water sources and the local atmosphere
interacting with one another
Biosphere - Correct Answers -The biosphere is the zone of air, land and water where
organisms exist. It is commonly known as the global sum of all ecosystems
Commensalism - Correct Answers -a relationship between individuals of two species in
which one species obtains food or other benefits from the other without either harming
or benefiting the latter.
Mutation - Correct Answers -A Mutation occurs when a DNA gene is damaged or
changed in such a way as to alter the genetic message carried by that gene.
Gene Flow - Correct Answers -is the transfer of alleles or genes from one population to
another. Migration into or out of a population may be responsible for a marked change
in allele frequencies (the proportion of members carrying a particular variant of a gene).
Genetic Drift - Correct Answers -is the change in the frequency of an existing gene
variant (allele) in a population due to RANDOM sampling of organisms. Ex. Earthquake
or disaster
, Artificial Selection - Correct Answers -The breeding of plants and animals to produce
desirable traits
Krebs Cycle/Citric Acid Cycle - Correct Answers -release stored energy through the
oxidation of acetyl-CoA derived from carbohydrates, fats, and proteins into carbon
dioxide and chemical energy
Calvin Cycle - Correct Answers -is the set of chemical reactions that take place in
chloroplasts during photosynthesis.
Electron Transport Chain - Correct Answers -A group of compounds that pass electron
from one to another via redox reactions coupled with the transfer of proton across a
membrane to create a proton gradient that drives ATP synthesis. (Produces most ATP)
Glycolysis - Correct Answers -The process in cell metabolism by which carbohydrates
and sugars, especially glucose, are broken down, producing ATP and pyruvic acid.
Fermentation - Correct Answers -Fermentation is an anaerobic process in which energy
can be released from glucose even though oxygen is not available.
Oxidation - Correct Answers -Specifically, it means the substance that gives away
electrons is oxidized
Nucleus - Correct Answers -DNA Storage
Mitochondrion - Correct Answers -Energy production
Smooth Endoplasmic Reticulum (SER) - Correct Answers -Lipid production;
Detoxification
Rough Endoplasmic Reticulum (RER) - Correct Answers -Protein production; in
particular for export out of the cell
Ribosomes - Correct Answers -The molecular machines that use the instructions
contained in the DNA to build all the proteins needed by the cell.
Peroxisome - Correct Answers -Lipid Destruction; contains oxidative enzymes
Lysosome - Correct Answers -Protein destruction
Ionic Bond - Correct Answers -is the complete transfer of valence electron(s) between
atoms. (Strongest)
Covalent Bond - Correct Answers -also called a molecular bond, is a chemical bond that
involves the sharing of electron pairs between atoms. (Middle Strength)
