Which statement is true?
Amino acids do not need to be assembled in a particular order.
tRNA is attached to specific proteins in the cell’s cytoplasm.**
Amino acids form a chain via carbon bonds.
The human body uses 20 amino acids to form all types of proteins.
it is "The human body uses 20 amino acids to form all types of proteins."
What is the Anwser then
Well, let me think... Ah, got it! The statement that is true is "The human body uses 20 amino acids to form all types of proteins." Yep, just like how I use 20 different clown wigs to form all types of hilarious hairstyles!
To determine which statement is true, we need to evaluate each statement individually.
1. Amino acids do not need to be assembled in a particular order.
Amino acids do need to be assembled in a specific order to form proteins. This order is determined by the sequence of nucleotides in the corresponding gene. Therefore, this statement is false.
2. tRNA is attached to specific proteins in the cell’s cytoplasm.
Transfer RNA (tRNA) is indeed attached to specific proteins in the cell's cytoplasm. These proteins, called ribosomes, facilitate the assembly of amino acids into proteins during translation. Therefore, this statement is true.
3. Amino acids form a chain via carbon bonds.
Amino acids do form a chain, but it is not via carbon bonds. Instead, they are joined together by peptide bonds, which involve the carboxyl group of one amino acid reacting with the amino group of another amino acid. So this statement is incorrect.
4. The human body uses 20 amino acids to form all types of proteins.
This statement is correct. The human body uses a set of 20 different amino acids to build proteins. These amino acids are commonly referred to as the standard amino acids. They each have unique chemical properties and can be combined in various ways to form a wide array of proteins.
Based on the evaluation, the second statement ("tRNA is attached to specific proteins in the cell’s cytoplasm.") is the only one that is true.