Detecting a Planet Around Another Star Using the Transit Method

question 1

Multiple Choice

Detecting a planet around another star using the transit method is difficult because

• A) the planet must pass directly in front of the star.
• B) the planet must have a rocky composition.
• C) the star must be very dim.
• D) the star must be moving with respect to us.

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Definitions:

Amino Acids

Organic compounds that serve as the building blocks for proteins, containing both amine and carboxyl functional groups.

Proteins

Large, complex molecules made up of amino acids that play critical roles in the body, including in structures, enzymes, and immune responses.

Enzyme-reactant Interaction

The specific process by which an enzyme binds to a reactant, or substrate, to catalyze a biochemical reaction.

Lock-and-key Mechanism

A model for enzyme-substrate interaction suggesting that the enzyme and substrate possess specific complementary geometric shapes that fit exactly into one another.