10 Questions
What is the function of the plasma membrane?
The plasma membrane defines the cell and separates the inside from the outside.
Name three intracellular organelles defined by membranes in eukaryotes.
The nucleus, mitochondrion, and lysosome.
What is the basic architecture of biomembranes?
A lipid bilayer in which proteins are embedded.
List three functions of membranes.
- Compartmentalization
- Scaffold for biochemical activities
- Providing a selectively permeable barrier
What is the purpose of biomembranes?
To create an ordered environment within cells and organelles to carry out functions encoded on DNA.
What are the functions of biomembranes?
The functions of biomembranes include compartmentalization, scaffold for biochemical activities, providing a selectively permeable barrier, transporting solutes, responding to external signals, intercellular interaction, and energy transduction.
What is the purpose of creating an ordered environment within cells and subcellular organelles?
Creating an ordered environment allows biomembranes to carry out functions encoded on DNA.
What is the estimated potassium/sodium ratio in our ancestral diet?
The estimated potassium/sodium ratio in our ancestral diet was 10:1.
Give an example of an ordered environment created by biomembranes.
An example of an ordered environment created by biomembranes is chloroplasts in heart muscle cells.
Name one intracellular organelle defined by membranes in eukaryotes.
One intracellular organelle defined by membranes in eukaryotes is the nucleus.
Test your knowledge on biological membranes and their role in cell structure and function. Explore the basic architecture of biomembranes and their involvement in defining the cell and its organelles.
Make Your Own Quizzes and Flashcards
Convert your notes into interactive study material.
Get started for free
