Two types of symporters (NRT1 and NRT2) and one antiporter (CLC) are involved in nitrate transport in plants.

TLS Online TPP Program

#Id: 3605

#Unit 3. Fundamental Processes

There are two major steps to start translation

1. Activation of amino acids,

2. Assembly of ribosomes.

TLS Online TPP Program

#Id: 3607

#Unit 3. Fundamental Processes

The tRNAs provide the physical interface between the amino acids being added to the growing polypeptide chain and the codons in the mRNA.

TLS Online TPP Program

#Id: 3608

#Unit 3. Fundamental Processes

Aminoacyl-tRNA synthetases couple amino acids to specific tRNAs that recognize the appropriate codon(s).

TLS Online TPP Program

#Id: 3609

#Unit 3. Fundamental Processes

The ribosome coordinates the correct recognition of the mRNA by each tRNA and catalyzes peptide-bond formation between the growing polypeptide chain and the amino acid attached to the selected tRNA.

TLS Online TPP Program

#Id: 3611

#Unit 3. Fundamental Processes

Degeneracy of the Genetic Code

TLS Online TPP Program

#Id: 3612

#Unit 3. Fundamental Processes

The initiation codon AUG is the most common signal for the beginning of a
polypeptide in all cells.