AP Biology Unit 1 - Chemistry of Life Review

Front

What are the structural differences between DNA and RNA?

Back

DNA is double stranded, contains thymine, and has deoxyribose sugar. RNA is single stranded, contains uracil, and has ribose sugar.

Front

Which elements are found in nucleic acids?

Back

C, H, O, N, P (Carbon, Hydrogen, Oxygen, Nitrogen, Phosphorus)

Front

What is cohesion in the context of water?

Back

Cohesion is water's tendency to 'stick' to other water molecules.

Front

Where do hydrophilic amino acids orient themselves during protein folding?

Back

Hydrophilic amino acids are found on the surface of the protein.

Front

Where do hydrophobic amino acids orient themselves during protein folding?

Back

Hydrophobic amino acids are found in the interior of the protein.

Front

What is the primary function of DNA?

Back

The primary function of DNA is to store and transmit genetic information.

Front

What is the role of RNA in protein synthesis?

Back

RNA serves as a template for translating genetic information into proteins.

Front

Define the term 'polarity' in relation to water molecules.

Back

Polarity refers to the distribution of electrical charge over the atoms joined by the bond, leading to a partial positive charge on one side and a partial negative charge on the other.

Front

What is the significance of hydrogen bonds in water?

Back

Hydrogen bonds contribute to water's unique properties, such as high surface tension, high specific heat, and solvent capabilities.

Front

Explain the term 'hydrophobic effect'.

Back

The hydrophobic effect describes how nonpolar substances aggregate in aqueous solutions to minimize their exposure to water.