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Answer:</h2><h2>when the membranes are fused, the polar parts of the phospholipids from one cell will interact with the phospholipids from the other cell .</h2>
Explanation:
Cell membrane is composed of phospholipid bilayer . Cell membrane is hydrophilic at the surface of outside of the cell and inside surface of the cell thus both surface of cell membrane is a hydrophilic . Interiorly cell membrane is hydrophobic or nonpolar region because membrane composed of long fatty acid chain interiorly . Inner surface of cell membrane have no contact with water or polar molecules . When membrane binds to each other then the polar parts of the phospholipids from one cell will interact with the phospholipids from the other cell , while nonpolar parts of cell avoid water and create bilayer phospholipid where hydrophobic tails are in between the hydrophilic heads .
I agree with you, i think that the best answer would be D. I hope this helps, and good luck
One of the key players is the enzyme DNA polymerase, also known as DNA pol. In bacteria, three main types of DNA polymerases are known: DNA pol I, DNA pol II, and DNA pol III. It is now known that DNA pol III is the enzyme required for DNA synthesis; DNA pol I and DNA pol II are primarily required for repair.
Hope this helps :)
Answer:
B) Transmission Electron Microscope
Explanation:
The microscope described above says
- uses electrons
This is your first hint. You can cross out any microscope that doesn't have the word "electron" in it.
This would cross out a) Compound Microscope and d) Dissecting Microscope
The second hint is:
- produces a 2D image
The Scanning Electron Microscope produces 3D images while the Transmission Electron Microscope produces 2D images
You can now cross out C) Scanning Electron Microscope
The third hint is:
- creates a detailed image of internal cells
As you know, cells are SUPER small. They can't be seen by the human eye. Transmission Electron Microscopes are used to view objects to the atomic level (which is the smallest we can get), while the Scanning Electron Microscope is used to see images of bacteria, germs, etc (which are BIGGER than atoms)
Hope this helps! Let me know if you have any other questions!
