Question 1

Which of the following statements best describes the difference between organic and inorganic compounds in biological systems?

Accepted Answer

Organic compounds contain carbon and can be large with specialized functions, while inorganic compounds lack carbon and tend to be simpler.

Question 2

A scientist discovers a new molecule in a cell that is composed of long chains of amino acids. Which macromolecule has the scientist most likely found?

Accepted Answer

Protein

Question 3

Which reaction is responsible for joining two monosaccharides to form a disaccharide, and what is released during this process?

Accepted Answer

Condensation (dehydration synthesis) reaction; water is released

Question 4

Which of the following is the correct monomer for nucleic acids?

Accepted Answer

Nucleotide

Question 5

A cell is breaking down a polysaccharide into its monosaccharide subunits. Which type of reaction is occurring, and what molecule is required?

Accepted Answer

Hydrolysis reaction; $$H_2O$$

Question 6

Which of the following best explains why the discovery of phosphorus on another planet is exciting for scientists searching for extraterrestrial life?

Accepted Answer

Phosphorus is essential for the formation of nucleic acids, which store genetic information.

Question 7

Which of the following correctly matches a macromolecule with its primary function in cells?

Accepted Answer

Proteins: catalyze chemical reactions as enzymes

Question 8

Which of the following is a correct structural difference between DNA and RNA?

Accepted Answer

DNA contains deoxyribose sugar, while RNA contains ribose sugar.

Question 9

A triglyceride is formed by the combination of which subunits?

Accepted Answer

Three fatty acids and one glycerol

Question 10

Which of the following best describes the role of ATP in cellular processes?

Accepted Answer

ATP provides chemical energy by breaking high-energy phosphate bonds.

Question 11

Which of the following is a correct example of a polymer and its corresponding monomer?

Accepted Answer

Protein: amino acid

Question 12

Which property of water is most important for its role as a solvent in biological systems?

Accepted Answer

Polarity

Question 13

Which of the following statements about carbohydrates is correct?

Accepted Answer

Polysaccharides are long chains of monosaccharides linked together.

Question 14

Which of the following bonds is found between glucose monomers in cellulose, and what is its significance?

Accepted Answer

Beta glycosidic bond; provides structural support

Question 15

A patient is unable to absorb certain nutrients due to a deficiency in lipid production. Which function of lipids is most directly affected?

Accepted Answer

Helping the body absorb and transport certain nutrients

Question 16

Which of the following is true regarding the process of hydrolysis?

Accepted Answer

It breaks a larger molecule into two smaller molecules with the assistance of water.

Question 17

Which of the following is a trace element required for biochemical processes in the body?

Accepted Answer

Iron

Question 18

Which of the following best describes the role of phospholipids in cells?

Accepted Answer

They are the primary component of cell membranes.

Question 19

Which of the following is a correct description of a condensation reaction?

Accepted Answer

A reaction that joins two smaller molecules together and releases water.

Question 20

Which of the following is NOT a function of proteins in the body?

Accepted Answer

Storing genetic information

Macromolecules and the Chemistry of Life: Study Notes

스터디 가이드 - 연습 문제

학습 가이드 - 플래시카드