18 Questions
What is the result of group translocation in glucose transportation?
Glucose is phosphorylated and cannot be transported back out
What is the primary function of septal mesosomes?
Play a role in cell division by forming the transverse septum
What is the primary component of bacterial capsules?
Polysaccharides
What is the main function of the glycocalyx?
Adhesion to surfaces
What is the result of mesosomes on the cell membrane?
Increased membrane surface area
What is a characteristic of capsules and glycocalyx?
They can be either tightly or loosely bound to the cell
What is the primary function of the cytoplasmic membrane in a bacterial cell?
To act as a selective barrier for materials entering and exiting the cell
What type of proteins are embedded within the lipid bilayer of the cytoplasmic membrane?
Integral proteins
What is the characteristic of the phospholipid molecules in the cytoplasmic membrane?
They have a hydrophilic phosphate group and a hydrophobic fatty acid chain
What is the difference between the cytoplasmic membrane of bacterial cells and eukaryotic cells?
Bacterial cells lack sterols, while eukaryotic cells have sterols
What is the dynamic structure of the prokaryotic cell that serves as a selective barrier?
Cytoplasmic membrane
What is the role of the lipid bilayer in the cytoplasmic membrane?
To facilitate the movement of molecules across the membrane
What is the primary function of the cytoplasmic membrane in bacteria?
To carry out energy-producing processes
What is the process of moving materials across the cell membrane that requires energy?
Active transport
What is the function of the plasma membrane in terms of selective permeability?
To allow certain substances to pass through while blocking others
What is the function of the bacterial cytoplasmic membrane in terms of biosynthetic functions?
To synthesize phospholipids and peptidoglycan
What is the function of the plasma membrane in terms of secretion?
To secrete hydrolytic exoenzymes
What is the function of the plasma membrane in terms of coordination with cell division?
To coordinate DNA replication with septum formation during cell division
Learn about the cytoplasmic membrane in bacterial cell structure, including its composition, function, and characteristics. This lecture covers the basics of phospholipids, lipid bilayer, and proteins in the membrane.
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