16 Questions
What property of particles determines whether they can permeate the cell membrane without assistance?
Size of the particle
Which organelle is typically the largest single organized cell component?
Nucleus
What cellular activities require ATP?
Synthesis of new chemical compounds
What structures are membrane-enclosed and serve as distinct, highly organized components within the cell?
Organelles
What is homeostasis?
The process of maintaining a relatively stable internal environment
Where are body cells contained?
In the watery internal environment through which life-sustaining exchanges are made
What are the two components of the extracellular fluid (ECF)?
Plasma and interstitial fluid
Where are desmosomes found?
Only in skin, heart, and uterus
What is the primary function of homeostasis?
To support the survival and function of all cells
What are the three major subdivisions found in most human cells?
Plasma membrane, cytoplasm, extracellular fluid
Where are desmosomes typically found in the human body?
In the skin, heart, and uterus
What are the two components of the extracellular fluid (ECF)?
Interstitial fluid and intracellular fluid
What type of molecules can easily pass through the cell membrane without assistance?
Uncharged nonpolar molecules
What cellular activities result in the production of a net of 32 ATPs?
Cellular respiration
What is the function of aquaporins in membrane transport?
Assist in the transport of uncharged nonpolar molecules
Which cellular component serves as the genetic blueprint during cell replication?
Nucleus
Test your knowledge about homeostasis and the maintenance of a relatively stable internal environment in living organisms. Explore the concept of dynamic steady state and the essential role of homeostasis for the survival and function of cells.
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