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Questions and Answers
What is a compound?
What is the main topic of the SMBM 102 course?
What is a molecule?
What is NOT a topic covered in SMBM 102?
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What is the chemical composition of water?
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What is a recommended textbook for SMBM 102?
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What is the topic of 'chemical compounds' referring to in SMBM 102?
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What is NOT a type of biochemical compound covered in SMBM 102?
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What percentage of the human body is composed of the six main elements?
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What is the principal fluid medium of the cell?
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What is the function of water in chemical reactions?
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What is the percentage of the human body composed of the five additional elements?
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What are the five basic substances that protoplasm is composed of?
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What is the role of minerals in the human body?
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What is a characteristic of water as a solvent?
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What is a property of water in terms of heat?
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Study Notes
Introduction to Biochemistry
- Biochemistry is the study of the chemical composition of the human body
Chemical Composition of the Human Body
- The human body is composed of six main elements: oxygen, carbon, hydrogen, nitrogen, calcium, and phosphorus (almost 99% of the body's mass)
- Five additional elements are necessary for life: potassium, sulfur, sodium, chlorine, and magnesium (about 0.85% of the body's mass)
- The remaining elements are present in smaller amounts (trace elements)
Levels of Structural Organization in the Human Body
- The human body is organized into several levels: atoms, molecules, compounds, cells, tissues, organs, and organ systems
Compounds
- A compound is a substance containing atoms of two or more different elements
- Examples of compounds in the human body: water (H2O), proteins, carbohydrates, fats, and oils
Molecules
- A molecule is a group of atoms bonded together
- Examples of molecules in the human body: oxygen (O2)
Atoms
- An atom is the smallest unit of matter
- Atoms are the building blocks of molecules and compounds
Water
- Water is the principal fluid medium of the cell (70-85% of cell composition)
- Water is an excellent solvent, participates in chemical reactions, absorbs and releases heat slowly, and serves as a lubricant
- Properties of water:
- Excellent solvent
- Participates in chemical reactions
- Absorbs and releases heat slowly
- Requires a large amount of heat to change from a liquid to a gas
- Serves as a lubricant
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Description
This quiz covers the introduction to biochemistry and the human body, recommended textbooks included. Topics may include biochemistry principles, human body systems, and more.