WGU C190 Intro to Biology Latest Update 2026 | Exam
Prep | 100% Accurate Answers
1. What are the three main functions of proteins in biological systems?
Structural components, enzymes, communication
Energy storage, genetic information, signaling
Cell division, metabolism, homeostasis
Transport, defense, energy production
2. If two atoms form a covalent bond, what would you expect to happen to
their electron configurations?
Their electron configurations will overlap as they share electrons.
Their electron configurations will become completely independent.
Their electron configurations will become ionic.
One atom will lose electrons to the other.
3. What are emergent properties in a system?
Characteristics of the system's individual components
Characteristics of the system as a whole
Properties that are unrelated to system performance
Properties that are easy to predict based on components
4. What is a cell
Fundamental unit of any living organism
A little living thing
, A particle of the body
None of the above
5. Describe how proteins contribute to biochemical reactions in living
organisms.
Proteins provide energy for cellular activities.
Proteins are primarily involved in cell division.
Proteins store genetic information for cellular functions.
Proteins act as enzymes that facilitate biochemical reactions.
6. What is a hydrogen bond?
A strong chemical bond
A WEAK chemical attraction between the slightly "+" charged end of
a molecule & the slightly "-" charged end of another molecule
Any chemical bond involving hydrogen atoms or ions
7. What is the basic definition of tissue in biology?
Tissue is formed when similar cells work together to perform a
specific function.
Tissue is a collection of organs that perform a single function.
Tissue is the smallest unit of life.
Tissue is a group of different types of cells that work independently.
8. If a new type of fatty acid is discovered that has an even kinkier structure than
existing kinky fatty acids, what would you predict about its behavior at room
temperature?
It would likely remain fluid.
, It would likely form a regular structure.
It would likely solidify.
It would likely evaporate.
9. Describe the process and implications of protein denaturation in biological
systems.
Protein denaturation involves the unfolding of a protein, which
disrupts its structure and function.
Protein denaturation is a reversible process that strengthens protein
interactions.
Protein denaturation enhances the protein's ability to function in
various environments.
Protein denaturation only affects the protein's secondary structure.
10. What are emergent properties?
Changes in populations of organisms that occur over long periods of
time
Characteristics that arise through interactions among smaller
components in an organism
Changes in an organism that occur in response to environmental
change
11. What is the basic definition of a cell in biological terms?
A complex organism
The fundamental unit of life
A type of macromolecule
, A cellular organelle
12. Define hydrogen bond
A bond that exclusively exists within a hydrogen molecule (H₂).
A bond formed by the sharing of hydrogen atoms between two
molecules.
An interaction between an H atom that is covalently bonded to an
electronegative atom and the unbonded electrons of a second
electronegative atom.
A covalent bond where hydrogen atoms share electrons with other
hydrogen atoms.
13. The Endoplasmic Reticulum:
Is the site of production of transmembrane proteins and lipids for
most organelles.
Has a central role as intracellular Calcium store.
All of these answers are correct.
Carries out synthesis of soluble proteins for secretion.
14. Describe the significance of nucleotides in the structure of nucleic acids.
Nucleotides serve as the building blocks of nucleic acids, which
store and transmit genetic information.
Nucleotides are involved in energy transfer within cells.
Nucleotides are primarily responsible for protein synthesis.
Nucleotides are structural components of cell membranes.
15. What is the primary function of glycogen in animal cells?
Prep | 100% Accurate Answers
1. What are the three main functions of proteins in biological systems?
Structural components, enzymes, communication
Energy storage, genetic information, signaling
Cell division, metabolism, homeostasis
Transport, defense, energy production
2. If two atoms form a covalent bond, what would you expect to happen to
their electron configurations?
Their electron configurations will overlap as they share electrons.
Their electron configurations will become completely independent.
Their electron configurations will become ionic.
One atom will lose electrons to the other.
3. What are emergent properties in a system?
Characteristics of the system's individual components
Characteristics of the system as a whole
Properties that are unrelated to system performance
Properties that are easy to predict based on components
4. What is a cell
Fundamental unit of any living organism
A little living thing
, A particle of the body
None of the above
5. Describe how proteins contribute to biochemical reactions in living
organisms.
Proteins provide energy for cellular activities.
Proteins are primarily involved in cell division.
Proteins store genetic information for cellular functions.
Proteins act as enzymes that facilitate biochemical reactions.
6. What is a hydrogen bond?
A strong chemical bond
A WEAK chemical attraction between the slightly "+" charged end of
a molecule & the slightly "-" charged end of another molecule
Any chemical bond involving hydrogen atoms or ions
7. What is the basic definition of tissue in biology?
Tissue is formed when similar cells work together to perform a
specific function.
Tissue is a collection of organs that perform a single function.
Tissue is the smallest unit of life.
Tissue is a group of different types of cells that work independently.
8. If a new type of fatty acid is discovered that has an even kinkier structure than
existing kinky fatty acids, what would you predict about its behavior at room
temperature?
It would likely remain fluid.
, It would likely form a regular structure.
It would likely solidify.
It would likely evaporate.
9. Describe the process and implications of protein denaturation in biological
systems.
Protein denaturation involves the unfolding of a protein, which
disrupts its structure and function.
Protein denaturation is a reversible process that strengthens protein
interactions.
Protein denaturation enhances the protein's ability to function in
various environments.
Protein denaturation only affects the protein's secondary structure.
10. What are emergent properties?
Changes in populations of organisms that occur over long periods of
time
Characteristics that arise through interactions among smaller
components in an organism
Changes in an organism that occur in response to environmental
change
11. What is the basic definition of a cell in biological terms?
A complex organism
The fundamental unit of life
A type of macromolecule
, A cellular organelle
12. Define hydrogen bond
A bond that exclusively exists within a hydrogen molecule (H₂).
A bond formed by the sharing of hydrogen atoms between two
molecules.
An interaction between an H atom that is covalently bonded to an
electronegative atom and the unbonded electrons of a second
electronegative atom.
A covalent bond where hydrogen atoms share electrons with other
hydrogen atoms.
13. The Endoplasmic Reticulum:
Is the site of production of transmembrane proteins and lipids for
most organelles.
Has a central role as intracellular Calcium store.
All of these answers are correct.
Carries out synthesis of soluble proteins for secretion.
14. Describe the significance of nucleotides in the structure of nucleic acids.
Nucleotides serve as the building blocks of nucleic acids, which
store and transmit genetic information.
Nucleotides are involved in energy transfer within cells.
Nucleotides are primarily responsible for protein synthesis.
Nucleotides are structural components of cell membranes.
15. What is the primary function of glycogen in animal cells?
