What are the components of transcription?
Transcription involves four steps:
- Initiation. The DNA molecule unwinds and separates to form a small open complex.
- Elongation. RNA polymerase moves along the template strand, synthesising an mRNA molecule.
- Termination. In prokaryotes there are two ways in which transcription is terminated.
- Processing.
What molecules are involved in transcription and translation?
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 are the 6 steps of transcription?
RNA then undergoes translation to make proteins. The major steps of transcription are initiation, promoter clearance, elongation, and termination.
Which two cellular components make up the ribosomal subunits involved in the process of translation?
A ribosome, formed from two subunits locking together, functions to: (1) Translate encoded information from the cell nucleus provided by messenger ribonucleic acid (mRNA), (2) Link together amino acids selected and collected from the cytoplasm by transfer ribonucleic acid (tRNA).
What are the basic steps of protein synthesis?
Protein synthesis is the process in which cells make proteins. It occurs in two stages: transcription and translation. Transcription is the transfer of genetic instructions in DNA to mRNA in the nucleus. It includes three steps: initiation, elongation, and termination
What is the correct sequence of protein synthesis in a cell quizlet?
which correctly describes the process of protein synthesis? The protein sequence is transcribed from a strand of RNA in the nucleus and is then translated into a sequence of amino acids on a ribosome in the cytoplasm.
What is the role of transcription in protein synthesis?
Transcription is the process by which the information in a strand of DNA is copied into a new molecule of messenger RNA (mRNA). The newly formed mRNA copies of the gene then serve as blueprints for protein synthesis during the process of translation.
What are the steps of protein synthesis quizlet?
Terms in this set (5)
- FIRST step. DNA unzips between its pairs, then one of the strands of DNA directs the production of mRNA.
- SECOND step. A ribosome attaches to mRNA in the cytoplasm, specific amino acids are attached to the tRNA.
- THIRD step. Molecules of tRNA and amino acids attach to mRNA.
- FOURTH step.
- FIFTH step.
Which of the following is an incorrect match between a type of protein and its function?
The incorrect match between a type of protein and its function is antibody: chemical messaging. Antibodies are proteins of the immune system that help defend the body from infection. Chemical messengers are signal proteins such as hormones that coordinate activities throughout the body.
What is another name for a condensation reaction?
Condensation reactions are called dehydration synthesis reactions. This is because they involve the combining of molecules with the loss of water….
What can alter or destroy the function of a protein?
Changing the Shape of a Protein If the protein is subject to changes in temperature, pH, or exposure to chemicals, the internal interactions between the protein’s amino acids can be altered, which in turn may alter the shape of the protein.
Which is not a monomer?
protein
What are the 4 types of monomers?
There are four main types of monomer, including sugars, amino acids, fatty acids, and nucleotides.
What is monomer give example?
Examples of the monomers are glucose, vinyl chloride, amino acids, and ethylene. Every monomer can link up to form a variety of polymers in different ways. For example, in glucose, glycosidic bonds that bind sugar monomers to form polymers such as glycogen, starch, and cellulose
How do you identify a monomer?
Monomers are the individual units that make up a polymer. We can determine what the monomer is by first finding the smallest repeating structure.
What are the 3 monomers?
The monomers of these organic groups are:
- Carbohydrates – monosaccharides.
- Lipids – glycerol and fatty acids.
- Nucleic acids – nucleotides.
- Proteins – amino acids.
How do you tell if it’s a monomer or polymer?
A monomer is a type of molecule that has the ability to chemically bond with other molecules in a long chain; a polymer is a chain of an unspecified number of monomers. Essentially, monomers are the building blocks of polymers, which are more complex type of molecules
What is a monomer easy definition?
Monomer, a molecule of any of a class of compounds, mostly organic, that can react with other molecules to form very large molecules, or polymers. The essential feature of a monomer is polyfunctionality, the capacity to form chemical bonds to at least two other monomer molecules.
What is the best definition of a monomer?
A monomer is a small molecule that reacts with a similar molecule to form a larger molecule. It is the smallest unit in a polymer, which is often a macromolecule with high molecular weight. The word monomer derives from the Greek prefix monos – which means “single” or “only.”2017年4月28日
What is the function of a monomer?
A monomer is a molecule that forms the basic unit for polymers, which are the building blocks of proteins. Monomers bind to other monomers to form repeating chain molecules through a process known as polymerization. Monomers may be either natural or synthetic in origin
What is another word for monomer?
Hyponym for Monomer: chemical compound, compound.
What is the opposite of a monomer?
What is the opposite of monomer?
| polymer | biopolymer |
|---|---|
| macromolecule | resin |
What monomers is used to synthesize proteins?
Complex carbohydrates are formed from monosaccharides, nucleic acids are formed from mononucleotides, and proteins are formed from amino acids. There is great diversity in the manner by which monomers can combine to form polymers. For example, glucose monomers are the constituents of starch, glycogen, and cellulose.
What is another word for polymer?
n. polyurethane, polyamide, silicone, synthetic resin, lignin, trimer, rna, polymeric amide, dna, copolymer, silicone polymer, ribonucleic acid, polyurethan, deoxyribonucleic acid, Desoxyribonucleic Acid.