Answer:
It is called the S-A node, or rather sinus node.
Answer:
enzymes are special proteins that increase the rate of a reaction by decreasing the amount of energy needed to get a reaction started
Dominant refers to the relationship between two versions of a gene. Individuals receive two versions of each gene, known as alleles, from each parent. If the alleles of a gene are different, one allele will be expressed; it is the dominant gene. The effect of the other allele, called recessive, is masked.
Answer:
Endoplasmic Reticulum
Structure
It is a large dynamic structure that serves many role in the cell including calcium storage, lipid metabolism, etc.
Function
It's function is to produce protein for the rest of cells to function.
Golgi bodies
Structure
It is made up of series of flattened stacked pouches
Function
It collect and distribute substance made in cell,synthesis and secretion of many material.