Front

What is the most abundant element in the Earth's atmosphere?

Back

Nitrogen

Front

Which nitrogen base is found only in RNA?

Back

Uracil

Front

What determines the instructions for cell functions in DNA?

Back

The order of nitrogen bases.

Front

What is the primary function of the cell membrane?

Back

Protection and regulation of entry and exit of substances.

Front

Which nitrogen base pairs with Adenine in DNA?

Back

Thymine.

Front

What are the four main nitrogen bases in DNA?

Back

Adenine, Thymine, Cytosine, Guanine.

Front

What is the role of DNA in living organisms?

Back

To store and transmit genetic information.

Front

What is the basic unit of life?

Back

The cell.

Front

What is the function of ribosomes in a cell?

Back

Protein synthesis.

Front

What is the difference between DNA and RNA?

Back

DNA is double-stranded and contains Thymine; RNA is single-stranded and contains Uracil.