18 Questions
What is biology defined as?
The scientific study of life
Which of the following is NOT a characteristic of life?
Random growth and development
What is the structural and functional unit of life?
Cell
Which of the following is responsible for regulating the internal environment of an organism?
Organelles
What controls the pattern of growth and development in all organisms?
DNA
How do organisms respond to environmental stimuli?
By responding to external cues
What is the basis for all reproduction and for the growth and repair of multicellular organisms?
The ability of cells to give rise to new cells
How can cells be compared to building blocks according to the text?
Cells can make more cells, just like building blocks can be used to make new things
In the text, how are single-cell bacteria and other unicellular organisms described in comparison to multicellular organisms?
They outnumber multicellular organisms on Earth
What analogy is made between a cell and a tiny house in the text?
A cell is like a small room within a big house
What is the function of cells in helping living things grow bigger, according to the text?
Cells can divide and make more cells
Why are cells compared to a city in the text?
To emphasize that cells have their own rules and ways of functioning like cities
What is the first step that occurs before cell division?
DNA is replicated or copied
During gene expression, what molecule carries genetic information to the protein manufacturing machinery in the cell?
RNA
What is the ultimate result of the translation of nucleotide sequences in RNA into protein building blocks?
Formation of a specific protein with a unique shape and function
How is genetic information usually linked with information from the external and internal environment?
By receiving stimuli through receptors and relaying information within the body
What influences the behavior of individual cells by changing the activity of existing proteins or regulating gene expression?
Flow of information reaching individual cells
How are structure and function related when considering objects around your home?
Form generally fits function
Learn about the process of DNA replication, transcription, translation, and protein synthesis in cells. Understand how genes encode information that is ultimately transformed into functional proteins.
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