Question 1

Which of the following best describes an organic compound?

Accepted Answer

A molecule that contains carbon and is found in living organisms.

Question 2

Why is carbon able to form such a wide variety of molecules?

Accepted Answer

Because it can form up to four covalent bonds with other atoms.

Question 3

Which property of carbon allows it to form large, complex molecules essential for life?

Accepted Answer

Its ability to form four covalent bonds with other atoms.

Question 4

A molecule with the formula $$C_6H_{12}O_6$ is most likely to be classified as which type of compound?

Accepted Answer

Organic compound

Question 5

Which of the following best explains why hydrocarbons are nonpolar?

Accepted Answer

The electronegativity difference between carbon and hydrogen is very small.

Question 6

Which of the following is NOT a functional group commonly found in organic molecules?

Accepted Answer

Sulfate

Question 7

Which functional group is responsible for the acidic properties of amino acids?

Accepted Answer

Carboxyl group ($$-COOH)$$

Question 8

A molecule contains both a carboxyl group and an amino group. Which type of molecule is this most likely to be?

Accepted Answer

Amino acid

Question 9

Which of the following best describes a structural isomer?

Accepted Answer

Molecules with the same molecular formula but different covalent arrangements of atoms.

Question 10

Which functional group is most likely to make a molecule more hydrophilic?

Accepted Answer

Hydroxyl group ($$-OH)$$

Question 11

A patient is diagnosed with a genetic disorder that affects the structure of their proteins. Which functional group is most likely involved in the formation of disulfide bridges that stabilize protein structure?

Accepted Answer

Sulfhydryl group ($$-SH)$$

Question 12

Which of the following statements about enantiomers is correct?

Accepted Answer

They are mirror images of each other and cannot be superimposed.

Question 13

Which functional group is found in both alcohols and sugars, and is responsible for their solubility in water?

Accepted Answer

Hydroxyl group ($$-OH)$$

Question 14

Which of the following best describes the role of the methyl group ($$-CH_3$) in organic molecules?

Accepted Answer

It acts as a nonpolar group and can affect gene expression when attached to DNA.

Question 15

A researcher is studying a molecule with the following structure: $$R-COOH. $$Which property is most likely associated with this molecule?

Accepted Answer

It can donate a proton (H$$^+) in $$solution, making it acidic.

Chapter 4 - bio 1201

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