Answer:
Here's what I get
Explanation:
Each iron atom can form six coordination bonds. One of these bonds is formed between iron and oxygen.
TRUE
By itself, heme is not a good oxygen carrier. It must be part of a larger protein to prevent oxidation of the iron atom.
TRUE
Molecular oxygen binds irreversibly to Fe²⁺ in heme.
False. It binds reversibly with heme.
Heme is composed of an organic protoporphyrin component and a metal atom.
TRUE
Hemoglobin and myoglobin are heterotetramers.
False. Hemoglobin is a tetramer. Myoglobin a monomeric protein.
Both hemoglobin and myoglobin contain a prosthetic group called heme, which contains a central iron atom.
TRUE
Each hemoglobin molecule can bind four oxygen molecules; each myoglobin can bind only one oxygen molecule.
TRUE
The answers that are correct are a, b, and d
Answer:
D
Explanation:
beacause all the elements in period 3 has different valence electrons hence you look at the first element in period 3 is sodium which has a valence electron of 1 when you go across the period to the right their valence electron decreases to be negative
Methanol is the substance that can be broken down by chemical means, the remaining ones are elements.
Answer:
Isopropylbenzene
Explanation:
If you draw the structure, you can see that there are two methyl groups and in between there.
Adjacent to CH3, there are four neighbouring hydrogens, therefore, n=4+1 = 5. The same is for methyl on other side. For carbon present in benzene ring, there is 2, since there is one hydrogen on benzene per carbon.
