When Protostars Are FIRST Formed from the Interstellar Medium,they Are

question 18

Multiple Choice

When protostars are FIRST formed from the interstellar medium,they are usually

• A) detected easily because their light ionizes the surrounding interstellar gas,forming H II regions.
• B) very bright in ultraviolet light due to numerous flares (like solar flares but hotter and brighter).
• C) hidden from sight by dust clouds that emit infrared radiation.
• D) detected by emission lines in their visible spectra,emitted by gas being blown off their surfaces into space.

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Definitions:

Enzymes

Proteins that act as biological catalysts, speeding up reactions in cells without being consumed in the process.

Proteins

Large, complex molecules made up of amino acids that perform a vast array of functions, including catalyzing metabolic reactions, DNA replication, and transporting molecules.

Monomer

Molecule that is a subunit of a polymer.

Glucose

A primary sugar crucial for energizing living beings and making up a significant part of numerous carbohydrates.