uil Pract...10

Front

What type of bond joins the two strands of nitrogenous bases in DNA?

Back

Hydrogen bonds

Front

What are the building blocks of nucleic acids?

Back

Nucleotides

Front

What are nucleotides composed of?

Back

A sugar, a phosphate group, and a nitrogen base.

Front

What is a long chain of amino acids called?

Back

Protein

Front

What is the most likely consequence of a significant decrease in Arctic ice for polar bears?

Back

Polar bears will become extinct.

Front

What phase of the moon is characterized by a small crescent shape that is increasing in size?

Back

Waxing Crescent

Front

What is the primary function of proteins in living organisms?

Back

To perform a variety of functions including catalyzing reactions, providing structure, and regulating processes.

Front

What is the role of nitrogen in nucleotides?

Back

Nitrogen bases are essential for the formation of DNA and RNA.

Front

What are the four main types of nitrogenous bases in DNA?

Back

Adenine, Thymine, Cytosine, Guanine.

Front

What is the difference between a covalent bond and a hydrogen bond?

Back

Covalent bonds involve the sharing of electrons, while hydrogen bonds are weaker attractions between polar molecules.