AP Biology Final Exam Fall 2023

Front

What are endergonic reactions?

Back

Endergonic reactions are chemical reactions that require an input of energy to proceed.

Front

What are exergonic reactions?

Back

Exergonic reactions are chemical reactions that release energy.

Front

What is the start codon in protein synthesis?

Back

The start codon is AUG.

Front

In which direction are nucleotides added during DNA or RNA synthesis?

Back

Nucleotides are added from the 5' end to the 3' end.

Front

How many nucleotides make up a codon?

Back

A codon is made up of 3 nucleotides.

Front

What is the role of cyclins in the cell cycle?

Back

Cyclins are proteins that regulate the timing of the cell cycle in eukaryotic cells.

Front

What do CDKs (Cyclin-dependent kinases) do?

Back

CDKs are enzymes that, when activated by cyclins, drive the cell cycle forward.

Front

What is the difference between endothermic and exothermic reactions?

Back

Endothermic reactions absorb heat, while exothermic reactions release heat.

Front

What is the function of a start codon?

Back

The start codon signals the beginning of translation in protein synthesis.

Front

What is the significance of the 5' to 3' direction in nucleic acid synthesis?

Back

The 5' to 3' direction is crucial for the correct addition of nucleotides and the overall directionality of DNA and RNA strands.