Recent content by marc32123

So the part of the cell's membrane that is facing towards the outside of the cell is called the apical membrane? And apical surface would refer to that the apical membrane then right? Also, is the basolateral membrane the membrane that is facing towards the cytoplasm? And what is the basement...

I keep coming across the word apical and basolateral membrane in my study of plasma membranes of cells. I am wondering if the apical membrane is towards the inside of the cell (cytoplasm) or towards the outside ?

Question about plasma membranes... I read this online and am wondering if this is true. It said that - "When you think about a membrane, imagine it is like a big plastic bag with some tiny holes. That bag holds all of the cell pieces and fluids inside the cell and keeps any nasty things...

I read on chemwiki that "The Octet Rule requires all atoms in a molecule to have 8 valence electrons--either by sharing, losing or gaining electrons--to become stable" Is it true that all atoms in a molecule have 8 electrons by sharing losing or gaining them?

Thanks for the info, although it is kind of out of the realm of what I understand about chem so far. I checked out that article on wiki already and had no idea what it was saying. I am terrible with math. Is there any way you could somewhat explain it in a somewhat understandable way what you...

Question about dipoles... I read somewhere that a dipole is a separation of two equal but opposite charges. Is this true or can the two charges of a dipole have a different amount of charge?

From what I have been learning recently, a dipole is a separation of electric charges and in chemistry, a dipole refers to the separation of charges within a molecule between two covalently bonded atoms (which is caused from one atom having a higher electronegativity) What I don't understand is...

I am just curious, I really don't know much about dipoles and just started a little research on it because I keep coming across the word in my recent research into chemistry. Same with the word polar or polarity.

Question about dipoles... What is the difference between a dipole in physics and a dipole in chemistry?

What are some intramolecular forces that are not bonds?

? And could you give some examples of intramolecular bonds please?

I am reading an article on wikipedia about ground state and it says - The ground state of a quantum mechanical system is its lowest-energy state; the energy of the ground state is known as the zero-point energy of the system. An excited state is any state with energy greater than the...

Thanks but still I am wondering, if beryllium-9 is called a stable isotope of beryllium, what would the normal beryllium-8 with 4 protons and 4 neutons be called?

What is a Standard State or Reference State of an element? Can someone please give me a simple explanation of what a standard state or reference state is? I don't quite understand the way wiki describes it which is - The standard state, also known as reference state, of an element is...

Question about monoisotopic elements... Of the 80 elements with at least one stable isotope, 26 have only one single stable isotope. The mean number of stable isotopes for the 80 stable elements is 3.1 stable isotopes per element. The largest number of stable isotopes that occur for a single...