What molecule specifies the exact sequence of amino acids of the protein to be made?

What molecule specifies the exact sequence of amino acids of the protein to be made?

Messenger RNA (mRNA) molecules carry the coding sequences for protein synthesis and are called transcripts; ribosomal RNA (rRNA) molecules form the core of a cell’s ribosomes (the structures in which protein synthesis takes place); and transfer RNA (tRNA) molecules carry amino acids to the ribosomes during protein …

What part of the cell plays a role in the synthesis of steroid based hormones and proteins?

The smooth endoplasmic reticulum (SER) is continuous with the RER but has few or no ribosomes on its cytoplasmic surface. Functions of the SER include synthesis of carbohydrates, lipids, and steroid hormones; detoxification of medications and poisons; and storage of calcium ions.

What provides energy needed for synthesis reactions?

Adenosine triphosphate (ATP) is the energy currency for cellular processes. ATP provides the energy for both energy-consuming endergonic reactions and energy-releasing exergonic reactions, which require a small input of activation energy.

What is a molecule that binds to a specific codon and specific amino acid simultaneously?

Each tRNA molecule consists of two distinct ends, one of which binds to a specific amino acid, and the other which binds to a specific codon in the mRNA sequence because it carries a series of nucleotides called an anticodon (Figure 3).

What RNA is responsible for bringing the amino acids to the ribosome for protein formation?

tRNAs (transfer RNAs) carry amino acids to the ribosome. They act as “bridges,” matching a codon in an mRNA with the amino acid it codes for.

Does tRNA transfer amino acids during transcription or translation?

tRNA carries and transfers an amino acid to the polypeptide chain being assembled during translation. translation – the process in which a cell converts genetic information carried in an mRNA molecule into a protein.

What is the specific role of the enzyme indicated by B during the formation of the new DNA strands?

What is the specific role of the enzyme indicated by B during the formation of the new DNA strands? DNA polymerase catalyzes formation of bonds between sugar groups and phosphate groups that link the DNA nucleotides together.

Which of the following allows for communication and the passage of small molecules?

These junctions allow communication between adjacent cells via the passage of small molecules directly from the cytoplasm of one cell to that of another.

How does transfer RNA recognize the correct sequence of amino acids?

Act as “interpreter” molecules that recognize specific amino acids and nucleotide base sequences. transfer RNA Attaches the correct amino acid to its transfer RNA. Synthetase enzymes Provides the energy needed for synthesis reactions. ATP Found in the cytoplasm, this structure specifies the exact sequence of amino acids of the protein to be made.

Where is messenger RNA found in a protein?

Found in the cytoplasm, this structure specifies the exact sequence of amino acids of the protein to be made. messenger RNA May be attached to the ER or scattered in the cytoplasm.

Which is true about diffusion and false DNA transcription?

Diffusion is always from areas of greater to areas of lesser concentration. true Facilitated diffusion always requires a carrier protein. false Pressure caused by gravity is necessary for any filtration pressure to occur in the body. false DNA transcription is another word for DNA replication.