Multiple Choice
Which scientist(s) used density gradient centrifugation to demonstrate semiconservative replication of DNA?
1. A Review of General Chemistry
Intro to Organic Chemistry
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Which statement is true about the structure of organic molecules?
A
Organic molecules do not contain any carbon atoms.
B
Organic molecules primarily consist of carbon and hydrogen atoms.
C
Organic molecules are always ionic compounds.
D
Organic molecules are typically composed of metals and nonmetals.
Verified step by step guidance1
Understand the definition of organic molecules: Organic molecules are primarily composed of carbon atoms, often bonded with hydrogen, oxygen, nitrogen, and other elements.
Recognize that carbon is a key element in organic chemistry due to its ability to form four covalent bonds, allowing for a variety of complex structures.
Identify that organic molecules are generally covalent compounds, not ionic. They form through the sharing of electrons between nonmetals.
Note that organic molecules typically do not include metals. They are mainly composed of nonmetals such as carbon, hydrogen, oxygen, and nitrogen.
Conclude that the statement 'Organic molecules primarily consist of carbon and hydrogen atoms' is true, as it aligns with the fundamental characteristics of organic compounds.
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