Biochemistry Reactions and Compounds Quiz

Which of the following is an example of a closed system?

Which type of energy is released when glucose is broken down?

According to the second law of thermodynamics, what happens during energy transformations?

How do the laws of thermodynamics help us understand metabolic processes in living organisms?

Which of the following is NOT an example of how large molecules leave a cell?

Different Types of Reactions

Dehydration reactions: larger molecules join by removing water
Hydrolysis reactions: water is used to split a large molecule into smaller molecules (reverse of dehydration)
Neutralization reaction: occurs between acids and bases to produce salts
Redox reactions: electrons are lost from one atom and gained by another
- Oxidation: the loss of electrons/transfer of a hydrogen atom
- Oxidizing agent: gains electrons
- Reduction: the gain of electrons
- Reducing agent: loses electrons
Hydrogen bonds: strong attraction between two water molecules, not chemical bonds
Buffers: chemicals that compensate for pH changes in a solution by accepting or donating H+ ions

Components of Most Cells

Carbon, hydrogen, oxygen, and nitrogen make up 99% of the mass of most cells

Types of Bonds

Glycosidic bonds: join carbohydrates
Ester linkages: join lipids
Peptide bonds: join proteins

Organic Compounds

Carbon compounds
- Organized into chains/rings
- Contain carbon-hydrogen bonds (good source of energy)
- Usually found in living organisms (carbohydrates and proteins)
Living systems contain organic compounds

Inorganic Compounds

Pure carbon and carbon compounds
No hydrogen
No carbon-hydrogen bonds

Test your knowledge on various biochemistry reactions including dehydration, hydrolysis, neutralization, and redox reactions. Additionally, explore the types of bonds and organic compounds that are essential for cellular structure. This quiz covers foundational concepts in biochemistry crucial for understanding life sciences.