-C-C-N- Peptide bond.
Proteins are composed of amino acids. These amino acids are joined together by peptide bonds where the -COOH group and the -NH2 group of two consecutive amino acids bond with the loss of a water molecule. The sequence of the amino acids make up the primary structure of the protein.
Really large molecules are called macromolecules. These can include proteins, nucleic acids (DNA and RNA), polysaccharides (carbohydrates), and synthetic polymers like plastics. Macromolecules consist of repeating subunits linked together to form complex structures.
Proteins are made in the cell's ribosomes, which can be found in the cytoplasm or attached to the endoplasmic reticulum. RNA directs the ribosomes to assemble amino acids into proteins through a process called translation.
When many glucose subunits join together, they form a complex carbohydrate called a polysaccharide. This includes polymers such as starch and glycogen, which serve as energy storage molecules in plants and animals, respectively.
Ribosomes are not membrane bound, they are free cytoplasmic organelles responsible for the translation of cytoplasmic mRNA's. When a ribosome begins to synthesize proteins that are needed in some organelles, the ribosome making this protein can become "membrane-bound". In eukaryotic cells this happens in a region of the endoplasmic reticulum (ER) called the "rough ER". The newly produced polypeptide chains are inserted directly into the ER by the ribosome and are then transported to their destinations. Ribosome in eukaryotes are called 80S ribosomes and consist of a small 40S subunit and a larger 60S subunit. Prokaryotes have 70S ribosomes consisting of a 30S and 50S subunits. Hope this helps.
proteins are long chains of amino acids
Amino Acids
Amino acids.
Enzymes called DNA polymerases catalyze the linking together of nucleotide subunits in DNA replication. These enzymes attach new nucleotides to the growing DNA strand based on the complementary base pairing between the original template DNA strand and the new nucleotides.
The subunits of proteins are called amino acids. We use twenty of these amino acids to make all the proteins the body uses.
The nucleolus contains chromatin that is needed to produce a type of RNA called ribosomal RNA(rRNA) that then joins with proteins to form the subunits of ribosomes. Each of these subunits has its own particular mix of rRNA and proteins. The two subunits are not assembled into one ribosome until they reach the cytoplasm.
A polymer is a large molecule made up of identical or similar subunits linked together. Examples of polymers include proteins, DNA, and carbohydrates.
Proteins are composed of amino acids. These amino acids are joined together by peptide bonds where the -COOH group and the -NH2 group of two consecutive amino acids bond with the loss of a water molecule. The sequence of the amino acids make up the primary structure of the protein.
The subunits composing proteins are called amino acids. We humans use twenty different forms of amino acids and we synthesize all but the eight essential amino acids that we get in our diet.
Carbohydrates = monosaccharidesProteins = amino acidsLipids = triglycerideNucleic Acids = nucleotides
That statement is false.
Polypeptides