A Transiting Extrasolar Planet Is Observed to Block 1% of Its

question 25

Multiple Choice

A transiting extrasolar planet is observed to block 1% of its host star's light. How does the size of this planet compare to the host star?

• A)The planet's radius is 10% of the host star's radius.
• B)The planet's radius is 1% of the host star's radius.
• C)The planet's radius is 0.1% of the host star's radius.
• D)The planet is the same size as the host star.

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Definitions:

LDL Cholesterol

Low-density lipoprotein cholesterol, often referred to as "bad" cholesterol, which can accumulate and form plaques in arteries, leading to cardiovascular disease.

Receptor-Mediated Endocytosis

A type of endocytosis in which extracellular molecules become bound to specific receptors on the cell surface and then enter the cytoplasm enclosed in vesicles. Compare with phagocytosis and pinocytosis.

Membrane-Bound Enzymes

Enzymes that are attached to or associated with a cell membrane, playing crucial roles in various cellular processes.

Signal Transduction

A process in which a cell converts and amplifies an extracellular signal into an intracellular signal that affects some function in the cell. Also see cell signaling.