Bio

The mechanism of coupling electron transport to ATP generation.

The energetically favorable transport of small molecules down a concentration gradient can be used to drive the synthesis of ATP. 

21. Genes and chromosomes 

Genes are traits that are which are inherited by certain factors; one gene copy (an allele) specifying a trait is inherited one from each parent

Chromosome- carriers of genes 

22. Roles of mRNA, tRNA, and rRNA 

mRNA carriers information from DNA to the ribosomes 

tRNA serves as adaptors between amino acids and mRNAs 

rRNA is a component of ribosomes 

Enzymes can be regulated from allosteric sites which can be positive= activator or negative=inhibitor. Small molecules bind outside catalytic site to change activity of enzyme. Phosphorylation also has enzymes can have a phosphate group covalently attached to serine, threonine or tyrosine amino acid. Negative charge changes the shape and activity and positive or negative regulation