AP Biology Semester 1 Final Review Day 1

Front

What determines the tertiary structure of a protein?

Back

The interactions of the different R-groups with other R-groups.

Front

What is the relationship between dehydration reactions and hydrolysis?

Back

Dehydration reactions assemble polymers by taking away water, and hydrolysis reactions break down polymers by adding water.

Front

How does UV radiation damage DNA?

Back

UV radiation disrupts the double helix structure by breaking the hydrogen bonds between the nitrogenous base pairs.

Front

What allows an insect to walk on the surface of water?

Back

Hydrogen bonds between molecules at the surface of the water provide surface tension, which allows the water surface to deform but not break under the insect.

Front

What is a structural difference between DNA and RNA?

Back

The backbone of DNA contains deoxyribose, whereas the backbone of RNA contains ribose.

Front

What are the four types of nitrogenous bases in DNA?

Back

Adenine (A), Thymine (T), Cytosine (C), Guanine (G).

Front

What is the role of hydrogen bonds in DNA structure?

Back

Hydrogen bonds between nitrogenous bases hold the two strands of DNA together.

Front

What is the function of ribose in RNA?

Back

Ribose is the sugar component of RNA, providing structural support and stability.

Front

What is the significance of the 5' to 3' directionality in nucleic acids?

Back

The 5' to 3' directionality is crucial for DNA replication and RNA transcription.

Front

What is surface tension and how is it related to water?

Back

Surface tension is the cohesive force at the surface of a liquid, allowing insects to walk on water.