Biology STAAR Review

Front

What is the amino acid that corresponds to the codon GGA?

Back

Glycine

Front

What is the term for a mass of cells that forms when cells lose their ability to regulate the cell cycle?

Back

A tumor

Front

What is the active site of an enzyme?

Back

The region on the enzyme where the substrate binds.

Front

What is the name of the sugar found in RNA?

Back

Ribose

Front

What characteristic did the ancestral species in a cladogram most likely have?

Back

A vertebral column.

Front

What is the function of enzymes in biological reactions?

Back

To speed up chemical reactions by lowering the activation energy.

Front

What is the difference between DNA and RNA?

Back

DNA contains deoxyribose sugar and is double-stranded, while RNA contains ribose sugar and is single-stranded.

Front

What is a codon?

Back

A sequence of three nucleotides in mRNA that corresponds to a specific amino acid.

Front

What is the role of ribosomes in protein synthesis?

Back

Ribosomes are the sites where amino acids are assembled into proteins.

Front

What is a cladogram?

Back

A diagram that shows the evolutionary relationships among different species.