Q: Which of the following is a correct representation of the hydrolysis of ATP?

$ATP + H_2O \rightarrow ADP + P_i + \text{energy}$

Question 1

Which property of water allows it to help regulate body temperature by absorbing and releasing large amounts of heat with only a slight change in its own temperature?

Accepted Answer

High heat capacity

Question 2

A solution has a pH of 4. How many times more acidic is it compared to a solution with a pH of 7?

Accepted Answer

1000 times

Question 3

Which of the following is NOT considered an organic compound?

Accepted Answer

Water

Question 4

What is the general formula for a monosaccharide?

Accepted Answer

$C_nH_{2n}O_n$

Question 5

Which of the following best describes the role of buffers in the blood?

Accepted Answer

Buffers prevent abrupt changes in pH by releasing or binding hydrogen ions.

Question 6

Which of the following is a correct example of a dehydration synthesis reaction?

Accepted Answer

Glucose + Fructose $\rightarrow$ Sucrose + Water

Question 7

Which type of lipid is a major component of cell membranes and has both hydrophilic and hydrophobic regions?

Accepted Answer

Phospholipid

Question 8

A patient’s blood pH drops from 7.4 to 7.0. What is the change in hydrogen ion concentration?

Accepted Answer

It increases by 10 times

Question 9

Which of the following statements about saturated fatty acids is TRUE?

Accepted Answer

They have the maximum number of hydrogen atoms.

Question 10

Which of the following is a function of cholesterol in the body?

Accepted Answer

It is a starting material for synthesis of steroid hormones.

Question 11

Which level of protein structure is determined by the sequence of amino acids?

Accepted Answer

Primary

Question 12

What is the main function of enzymes in biological systems?

Accepted Answer

They act as biological catalysts to speed up chemical reactions.

Question 13

Which of the following is TRUE about ATP?

Accepted Answer

It is a nucleotide that provides immediate energy for cellular work.

Question 14

Which of the following is a correct representation of the hydrolysis of ATP?

Accepted Answer

$ATP + H_2O ightarrow ADP + P_i + 	ext{energy}$

Question 15

Which of the following is a polymer made up of nucleotide monomers?

Accepted Answer

Nucleic acid

Question 16

Which of the following is a correct pairing of a purine and a pyrimidine found in DNA?

Accepted Answer

Adenine and Thymine

Question 17

Which of the following best explains why trans fats are considered unhealthy?

Accepted Answer

They are modified unsaturated fats that resemble saturated fats and can increase risk of heart disease.

Question 18

Which of the following is TRUE about the carbonic acid-bicarbonate buffer system?

Accepted Answer

It helps maintain blood pH by converting strong acids and bases into weak ones.

Question 19

Which of the following statements about protein denaturation is CORRECT?

Accepted Answer

It results in the loss of the protein’s functional 3-D shape.

Question 20

Which of the following is a correct description of a peptide bond?

Accepted Answer

A covalent bond between the amine group of one amino acid and the acid group of another.

Biochemistry Foundations for Anatomy & Physiology: Inorganic Compounds, Acids, Bases, and Buffers

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