What begins the process of transcription?
The process of transcription begins when an enzyme called RNA polymerase (RNA pol) attaches to the template DNA strand and begins to catalyze production of complementary RNA. Thus, it is RNA pol II that transcribes the messenger RNAs, which serve as the templates for production of protein molecules.
Which molecule starts the process of respiration?
In glycolysis, the beginning process of all types of cellular respiration, two molecules of ATP are used to attach 2 phosphate groups to a glucose molecule, which is broken down into 2 separate 3-carbon PGAL molecules.
What begins the process of transcription Brainly?
Transcription begins when an enzyme called RNA polymerase attaches to the DNA template strand and begins assembling a new chain of nucleotides to produce a complementary RNA strand. In eukaryotes, there are multiple types of RNA polymerase which make the various types of RNA.
What is the correct order of stages of cellular respiration?
Thus the correct order of the stages in cellular respiration is: Glycolysis – Oxidative decarboxylation – Krebs cycle – Electron transport chain – Oxidative phosphorylation.
What happens first in translation?
Initiation (“beginning”): in this stage, the ribosome gets together with the mRNA and the first tRNA so translation can begin. Elongation (“middle”): in this stage, amino acids are brought to the ribosome by tRNAs and linked together to form a chain.
What happens during transcription initiation?
Initiation is the beginning of transcription. It occurs when the enzyme RNA polymerase binds to a region of a gene called the promoter. This signals the DNA to unwind so the enzyme can ”read” the bases in one of the DNA strands. The enzyme is now ready to make a strand of mRNA with a complementary sequence of bases.
How are molecules formed in a chemical reaction?
Figure 1. Two or more atoms may bond with each other to form a molecule. When two hydrogens and an oxygen share electrons via covalent bonds, a water molecule is formed. Chemical reactions occur when two or more atoms bond together to form molecules or when bonded atoms are broken apart.
When do two atoms bond to form a molecule?
Two or more atoms may bond with each other to form a molecule. When two hydrogens and an oxygen share electrons via covalent bonds, a water molecule is formed. Chemical reactions occur when two or more atoms bond together to form molecules or when bonded atoms are broken apart.
What are substances used in the beginning of a chemical reaction?
The substances used in the beginning of a chemical reaction are called the reactants (usually found on the left side of a chemical equation), and the substances found at the end of the reaction are known as the products (usually found on the right side of a chemical equation).