NOTES CONTAINING VERIFIED CORRECT ANSWERS
AND CLEAR TOPIC EXPLANATIONS (2025–2026 EDITION
1. True or False: Nitrogen is called the superglue of the chemical world.: FALSE
2. True or False: Large elements, such as strontium, are common in biomole-
cules.: FALSE
3. True or False: The time it takes for a compound to flow through a metabolic
pathway is called the payoff phase.: FALSE
4. True or False: Proteins, carbohydrates, and fats all get broken down into
acetyl-CoA.: TRUE
5. True or False: A fat is a lipid molecule that is a solid at room temperature.-
: TRUE
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, 6. In DNA, guanine always pairs with .: Cytosine
7. Which of the following is the structure of ADP?: 2 DOUBLE O
8. The H+ concentration of a solution is 7.9 x 10-13 M. What is the pH?: 12.1
[ [H+]=7.9 x 10-13;
pH=-log[7.9 x 10-13]= 12.1]
9. Which of the following is the enthalpy change of a reaction?: ”H
10. The following is what type of protein secondary structure?: Anti-parallel
beta sheet
11. A globular protein is an example of a protein .: Conformation
12. Any molecule or ion that is necessary for an enzyme's function is called
a: Cofactor
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