Podcast
Questions and Answers
What type of structure does the selectively permeable membrane consist of?
What type of structure does the selectively permeable membrane consist of?
- No layer structure
- Triple-layered phospholipid bilayer
- Single-layered phospholipid bilayer
- Double-layered phospholipid bilayer (correct)
In cell chemistry, what process involves the synthesis of molecules from amino acids?
In cell chemistry, what process involves the synthesis of molecules from amino acids?
- Carbon assembly
- Self-assembly
- Polymerization (correct)
- Water synthesis
Why is carbon referred to as the 'King of All Elements' in biological molecules?
Why is carbon referred to as the 'King of All Elements' in biological molecules?
- It is found in water and air
- It is present in DNA, proteins, and fats (correct)
- It can replace all other elements
- It is the most reactive element
What characteristic of water allows it to form a layer or film on surfaces like a Water Strider?
What characteristic of water allows it to form a layer or film on surfaces like a Water Strider?
Which principle of Cell Chemistry involves molecules having internal memory to reassemble?
Which principle of Cell Chemistry involves molecules having internal memory to reassemble?
What property of water allows it to form spheres of hydration around ions?
What property of water allows it to form spheres of hydration around ions?
Which term best describes hydrocarbons according to the text?
Which term best describes hydrocarbons according to the text?
What is the main function of a SEMI PERMEABLE MEMBRANE as described in the text?
What is the main function of a SEMI PERMEABLE MEMBRANE as described in the text?
Why is the amphipathic nature important in cell membranes?
Why is the amphipathic nature important in cell membranes?
What is responsible for the cohesive nature of water molecules?
What is responsible for the cohesive nature of water molecules?
How does water contribute to dissolving a large variety of substances?
How does water contribute to dissolving a large variety of substances?
Why do large uncharged polar molecules like glucose and sucrose pass through the membrane slowly?
Why do large uncharged polar molecules like glucose and sucrose pass through the membrane slowly?
What is the role of channel membrane proteins in the movement of solutes across a semi-permeable membrane?
What is the role of channel membrane proteins in the movement of solutes across a semi-permeable membrane?
Why is it stated as a blessing that small nonpolar molecules like O2 and CO2 don't need membrane proteins to pass through?
Why is it stated as a blessing that small nonpolar molecules like O2 and CO2 don't need membrane proteins to pass through?
What is the significance of water being a major component of cells?
What is the significance of water being a major component of cells?
Why do small uncharged polar molecules like H2O and ethanol move relatively quickly across a semi-permeable membrane?
Why do small uncharged polar molecules like H2O and ethanol move relatively quickly across a semi-permeable membrane?
What is the main reason why ions like Cl-, K+, and Na+ cannot easily pass through a semi-permeable membrane?
What is the main reason why ions like Cl-, K+, and Na+ cannot easily pass through a semi-permeable membrane?
