Which of the following is not a macromolecule?

The tripeptide is written as Glycyl-Alanyl-Glycine. What is its correct structure?

Identify the correct statements from the following:
$I)$ When $DNA$ is hydrolysed,adenine and thymine are obtained in equal quantities.
$II)$ When $RNA$ is hydrolysed,adenine and uracil are obtained in equal quantities.
$III)$ Amylose is a branched polymer with $\alpha-1 \rightarrow 4$ and $\alpha-1 \rightarrow 6$ glycosidic linkages.
$IV)$ Addison disease is due to the abnormal functioning of adrenal cortex.

Identify the correct set of stereochemical relationships amongst the following monosaccharides $(I)-(IV)$:

Number of compounds from the following which will not produce orange red precipitate with Benedict's solution is $..............$. Glucose,maltose,sucrose,ribose,$2$-deoxyribose,amylose,lactose.

Which of the following bacteria are responsible for intestinal inflammation and urinary tract infections?