NLS
It requires a signal device in order to pass through.
there are no actual evidence of aliens therefore you cannot figure the molecular structure out
The molecular formula would have to be C4H10 as the number of hydrogen atoms cannot exceed 2+2X where X is the number of carbon atoms.
No, because the second formula contains an oxygen atom and the first formula does not. Structural isomers must have the same numbers of all types of atoms.
Elements
It requires a signal device in order to pass through.
For example,if the nucleus is absent,then the cell and its functions cannot be controlled.If the endoplsmic reticulum is absent, then the food cannot be transported in the cell.This shows that the absence of an one organeele will adversely affect the working of the cell.
Leeks!
there are no actual evidence of aliens therefore you cannot figure the molecular structure out
mRNA carries the code that was transcribed from DNA out to the ribosome to form the correct amino acid chain. So, yes, in a way mRNA is a messenger to the ribosomes since DNA cannot leave the nucleus.
There are a limited number of proteins in the cell-membrane. Therefore, when there are 5 protein carriers and 20 molecules which need to be transported, only 5 can be transported at any one time... so the leveling off shows it cannot increase any further than 5 ,ie
This cannot be answered without the molecular weight. Multiply by molecular weight to get your answer
k shell is nearest to the nucleus, but it cannot be said that it shields the nucleus MOST.
k shell is nearest to the nucleus, but it cannot be said that it shields the nucleus MOST.
cannot determine, will vary significantly from cell to cell.
The nucleus of an atom CANNOT itself contain atoms.
Embedded in the semi-permeable cell membrane are many different types of carrier proteins or channel proteins. These globular proteins allow the transport of specific substances from the outside of the cell into the cell or vice versa.Specific means each protein can only transport one type of substance across. For example, Protein A can transport Substance X but not Substance Y. Substance Y has to be transported by Protein B which cannot transport Substance X. The specific nature of these globular proteins mean it is easier for these molecules to be transported.