PYQ NEET- Cell Structure And Function-Biomolecules

2018: A cell is said to be in the G0 phase when it is not actively dividing. This phase is also known as the resting phase, and it is a time when the cell is not synthesizing new DNA or RNA. Cells in the G0 phase can remain there for a long time, and they can enter the cell cycle again at any time.

2017: Carbohydrates do not contain nitrogen. Carbohydrates are composed of carbon, hydrogen, and oxygen atoms. Nitrogen is not a component of carbohydrates.

2016: Lipids are not macromolecules. Lipids are small molecules that are composed of carbon, hydrogen, and oxygen atoms. They are not as large as macromolecules, such as proteins, carbohydrates, and nucleic acids.

A nucleotide does contain a phosphate group. A nucleotide is composed of a nitrogenous base, a sugar, and a phosphate group. The phosphate group is a component of a nucleotide.

Water is not a conductor of electricity. Water is a poor conductor of electricity because it does not have free ions. Free ions are necessary for a substance to conduct electricity.