Name the bond between two water molecules.

• Ionic bond
• Covalent bond
• Hydrogen bond
• Van der Waals interaction

Which of the following is monosaccharide?

• Lactose
• Maltose
• Sucrose
• Fructose

Two molecules of amino acids are linked by

• ester bond
• ionic bond
• peptide bond
• glycosidic bond

What is the monomer for DNA?

• Nucleotide
• Amino acid
• Pentose sugar
• Nitrogenous base

A phospholipid is composed of

• three fatty acids attached to a glycerol.
• a carbon skeleton consists of four fused rings.
• two fatty acids and a phosphate group attached to a glycerol.
• one saturated and two unsaturated fatty acids attached to a glycerol.

Which of the following are the components of the DNA monomer?

• I and II
• I and III
• II and III
• I, II and III

Choose the CORRECT pair of macromolecules with its respective bond.

• I and II
• I and III
• II and III
• I, II and III

The function of mitochondria is to

• package and transport protein
• act as site of cellular respiration
• act as site of protein synthesis in the cell
• act as the center to control the activities and cell division

Which of the following structures is found in both mitochondria and chloroplast?

• Cristae
• Stroma
• Thylakoid
• Two layer membrane

Plant cell wall is made up of

• lipid.
• chitin.
• cellulose.
• peptidoglycan.