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Chapter 2 Biology Review Essay

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Anatomy & Physiology – Study Guide
Chapter 2 - Biology Review

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Chapter 2 – Chemical Basis of Life
1. Explain how the study of living materials depends on the study of chemistry. Please explain. This answer should contain at least 150 words. If not, you will receive no credit.
2. What is an isotope?
- Multiple forms of the same element that have the same amount of protons but different number of neutrons in their nuclei.
3. What is an Atomic Theory?
- Theory that states that matter is composed of discrete units called atoms
4. Describe the relationship between atoms and molecules.
- A molecule is made up of two or more atoms
5. Describe …show more content…

Give two nucleic acids and give two differences of each of those nucleic acids.
15. List the six major elements that compose the human body.
- Oxygen, carbon, hydrogen, nitrogen, calcium, phosphorus
16. What is metabolism?
- Process that happens inside a living organism to maintain life
17. What is homeostasis?
- Ability of an organism or cell to stay in a state of equilibrium.
18. What is the difference between organic and inorganic compounds?
- An inorganic compound does not contain both carbon and hydrogen but an organic compound does.
19. List and discuss the unique properties of water.
20. What is an electrolyte? - Liquid that has ions and can be decomposed by electrolysis
21. Why are buffers important?
- Because buffers keep the pH level close to neutral & normally in living organisms the pH some remain close to 7
22. What are the four macromolecules?
- Carbohydrates, proteins, lipids, nucleic acids
2.2 Structure of Matter
A. Bonding: Define the following types of bonds and draw a picture illustrating each

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