Answer:
CO2 and N2 movement in and out of cells is unaffected when membrane protein activity is blocked.
Explanation:
The selective permeability of the biological membranes, like a cell membrane, to small molecules, allows the cell to control and maintain its internal composition.Free diffusion across the lipid bilayer can happen only for small uncharged or nonpolar molecules, such as CO2 and N2. Thus, they can easily cross cell membranes, without the assistance of the transmembrane proteins. Small uncharged polar molecules, such as H2O, also can diffuse through membranes without any help from channel proteins or carrier proteins, which are the two types of transmembrane proteins.
In the case of molecules like glucose, passage across the membrane occurs via the action of specific transmembrane proteins, which act as transporters. These transmembrane proteins allow polar or charged molecules to cross the membrane through a protein pore without interacting with the hydrophobic fatty acid chains of membrane phospholipids.
<span>A DNA nucleotide is composed of deoxyribose sugar, which is bonded to both a phosphate group and a nitrogenous base. They have the nitrogenous base bonded to their 1' carbon and a phosphate group to their 5' carbon. DNA stands for deoxyribonucleic acid, and you can see that it has deoxyribose, instead of ribose, in it from the name.</span>
Answer:
TTAGCCATG
Explanation:
Adenine pairs with Thymine
Guanine pairs with Cytosine
Hope this helps!!
What is "twinkling"? (in telescopes)
A. Flashing of quickly revolving starts
B. Distortion of light in the very large mirrors of refracting telescopes caused by moving air currents
<u>C. Distortion of light by lenses more that three feet across due to sagging class </u>
D. Interference between the lenses of a refracting telescope that distorts the final image