BIO120 Chapter 1-5 questions with
complete solutions
5 Unifying Themes of Biology - correct answer ✔✔organization, information, energy and matter,
interactions, evolution
Organization - correct answer ✔✔Orderly structure shown by living things
e.g., how cells are grouped; which genes are expressed
Information - correct answer ✔✔Information stored in DNA within biological systems; is transmitted and
expressed
Energy and Matter - correct answer ✔✔All biological systems depend on obtaining, converting, and
releasing energy and matter
Interactions - correct answer ✔✔Maintain homeostasis-- equilibrium; interact + adjust
Evolutions - correct answer ✔✔Cumulation of adaption to an environment in a species
Reductionism - correct answer ✔✔an approach that reduces complex systems to simpler components
that are more manageable to study-- breaking down into simple parts to better understand
Emergent Properties - correct answer ✔✔Multicellular organisms have properties that emerge from the
interaction of their cellular components
- An entity gains becomes part of a bigger system.
- Help living organisms better adapt to their environments and increase their chances of survival.
Example of Emergent Properties - correct answer ✔✔In multicellular organisms:
Cells may be grouped together to form tissues
, Organs are then formed from the functional grouping of multiple tissues
Organs that interact may form organ systems capable of carrying out specific body functions
Organ systems collectively carry out the life functions of the complete organism
Cell Theory - correct answer ✔✔1. All living organisms are composed of one or more cells.
2. The cell is the basic unit of structure and organization in organisms.
3. Cells arise from pre-existing cells.
Prokaryotic - correct answer ✔✔An organism whose cells do not have an enclosed nucleus i.e., bacteria
and archaea
feedback regulation - correct answer ✔✔the regulation of a process by its output or end product
What is the most common type of feedback regulation? - correct answer ✔✔Negative feedback
Negative Feedback - correct answer ✔✔A type of regulation that responds to a change in conditions by
initiating responses that will counteract the change. -- Response reduces the initial stimulus (e.g.,
diabetes)
Positive Feedback (less common) - correct answer ✔✔A type of regulation that responds to a change in
conditions by initiating responses that will amplify the change. Takes organism away from a steady state.
Evolution accounts for the _______ and ______ of life - correct answer ✔✔unity; diversity
Eurkarya Domain - correct answer ✔✔- Protista, Fungi, Plantae and Animalia
--> Protists:
- most numerous and diverse eukaryotes
- mostly single-celled organisms
- some less closely related to other protists than they are to plants/animals/fungi
complete solutions
5 Unifying Themes of Biology - correct answer ✔✔organization, information, energy and matter,
interactions, evolution
Organization - correct answer ✔✔Orderly structure shown by living things
e.g., how cells are grouped; which genes are expressed
Information - correct answer ✔✔Information stored in DNA within biological systems; is transmitted and
expressed
Energy and Matter - correct answer ✔✔All biological systems depend on obtaining, converting, and
releasing energy and matter
Interactions - correct answer ✔✔Maintain homeostasis-- equilibrium; interact + adjust
Evolutions - correct answer ✔✔Cumulation of adaption to an environment in a species
Reductionism - correct answer ✔✔an approach that reduces complex systems to simpler components
that are more manageable to study-- breaking down into simple parts to better understand
Emergent Properties - correct answer ✔✔Multicellular organisms have properties that emerge from the
interaction of their cellular components
- An entity gains becomes part of a bigger system.
- Help living organisms better adapt to their environments and increase their chances of survival.
Example of Emergent Properties - correct answer ✔✔In multicellular organisms:
Cells may be grouped together to form tissues
, Organs are then formed from the functional grouping of multiple tissues
Organs that interact may form organ systems capable of carrying out specific body functions
Organ systems collectively carry out the life functions of the complete organism
Cell Theory - correct answer ✔✔1. All living organisms are composed of one or more cells.
2. The cell is the basic unit of structure and organization in organisms.
3. Cells arise from pre-existing cells.
Prokaryotic - correct answer ✔✔An organism whose cells do not have an enclosed nucleus i.e., bacteria
and archaea
feedback regulation - correct answer ✔✔the regulation of a process by its output or end product
What is the most common type of feedback regulation? - correct answer ✔✔Negative feedback
Negative Feedback - correct answer ✔✔A type of regulation that responds to a change in conditions by
initiating responses that will counteract the change. -- Response reduces the initial stimulus (e.g.,
diabetes)
Positive Feedback (less common) - correct answer ✔✔A type of regulation that responds to a change in
conditions by initiating responses that will amplify the change. Takes organism away from a steady state.
Evolution accounts for the _______ and ______ of life - correct answer ✔✔unity; diversity
Eurkarya Domain - correct answer ✔✔- Protista, Fungi, Plantae and Animalia
--> Protists:
- most numerous and diverse eukaryotes
- mostly single-celled organisms
- some less closely related to other protists than they are to plants/animals/fungi
