How is an RNA molecule different from a DNA molecule? RNA is single stranded and composed of nitrogenous bases, a phosphate group, and a pentose sugar.
RNA is single stranded and composed of nitrogenous bases, a phosphate group, and a tetrose sugar.
RNA is a double-stranded helix and composed of nitrogenous bases, a fatty acid, and a pentose sugar.
RNA is single stranded and composed of nitrogenous bases, an amino acid, and a hexose sugar.

RNA is single-stranded and composed of nitrogenous bases, a phosphate group, and pentose sugar.

Explanation:

RNA is different from DNA because instead of having two matching bases; it is only made of one strand of nitrogenous bases. These bases are attached to the phosphate, which holds the whole strand of RNA together. The sugar acts as a carrier for the bases. The sugar in RNA is known as ribose and contains 5 carbon molecules. This is why it is called pentose sugar.

1. what is the relationship between the shape of an enzyme and the reactions they catalyze?

2. how does an enzyme inhibitor work?

separate your answers so i dont get confused : )