Organic Molecules and Functional Groups

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What is a functional group in organic molecules?

A group of atoms that always has the same chemical properties (correct)

A group of atoms that can vary in chemical properties

A group of atoms that has different properties in different molecules

A group of atoms that only react with water molecules

Which functional group contains a carbon double-bonded to an oxygen and a hydroxyl group?

Carboxyl group (correct)

Amino group

Sulfhydryl group

Phosphate group

What are monomers in the context of macromolecules?

Atoms with different chemical properties

Large molecules with unique properties

Small repeating subunits that serve as building blocks (correct)

Functional groups attached to polymers

Which process involves the loss of a water molecule to join monomers into polymers?

Dehydration synthesis reaction Signup and view all the answers

What gives large biological molecules their unique properties?

The arrangement of their atoms Signup and view all the answers

Which category of biological molecules is mainly used as an immediate energy source?

Carbohydrates Signup and view all the answers

What type of chemical bond joins a functional group to the carbon skeleton of a large molecule?

Covalent bond Signup and view all the answers

What kind of bond would be present in a completely flat section of a biological molecule?

B or C Signup and view all the answers

Which functional group is most important for DNA molecules?

Phosphate Signup and view all the answers

Which of the following can carbon-based molecules do because of the versatile bond structures formed by carbon?

All of the above Signup and view all the answers

What type of isomer is propanal compared to acetone?

Structural isomer Signup and view all the answers

Which polysaccharide has the greatest number of branches?

Glycogen Signup and view all the answers

Which polysaccharide cannot be digested by humans and contains unbranched β glucose molecules?

Cellulose Signup and view all the answers

Which statement is true about lipids?

All lipids are made from glycerol and fatty acids. Signup and view all the answers

How does RNA differ from DNA?

DNA contains thymine; RNA contains uracil. Signup and view all the answers

If you heat a cell to a moderately higher temperature, which molecule will stop working first?

Protein Signup and view all the answers

In which pair does the first molecule determine the structure of the second?

DNA, protein Signup and view all the answers

Organic Molecules and Functional Groups

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