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Biology Homework # 1

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Biology Homework # 1
BIO 110
Homework - Chapter #1
1. What is science?
2. What are seven characteristics of all living organisms?
3. Explain the steps of the scientific method.
4. What are theories?
Homework – Chapter #2 and #3
1. What is an atom, what is an atom composed of and what are the charges of each
Component?
2. What is an element?
3. What is atomic number and atomic mass?
4. What is an isotope and how do isotopes interact with other atoms?
5. What is a radioactive isotope?
6. Draw the shell model for the elements carbon, oxygen, sodium and chloride?
7. What does inert mean?
8. Define chemical bond, molecule, compounds, and mixture. (Give examples)
9. Write a chemical equation and indicated the products and reactants.
10. What is an ion?
11. Describe the following bonds (use examples): ionic bond, polar covalent bond, nonpolar covalent bond, and hydrogen bond.
12. What are the properties of water? Describe each property being sure to include the following terms: hydrophobic, hydrophilic, evaporation, cohesion, adhesion, solvent, solute, and solution.
13. What does the pH scale measure? What is the range on the scale? What values indicate acid, indicate base and indicate neutral?
14. What is an acid?
15. What is a base?
16. What is a buffer and how do they function?
17. What are the 4 molecules of life? Discuss each in detail.
18. What does organic mean?
19. What are condensation reactions and hydrolysis reactions?
20. Describe the 4 levels of protein structure.
21. Distinguish between saturated and unsaturated fat.
Homework - Chapter 4
1. Who was to first person to observe cells?
2. What does the cell theory state and who formulated this theory?
3. What are three basic components all cell have?
4. Distinguish between prokaryotic and eukaryotic.
5. What is the fluid mosaic model?
6. What is an organelle?
7. Discuss the following organelles:
a. Nucleusb. Nucleolus
c. Rough endoplasmic reticulum
d. Smooth endoplasmic reticulum
e.

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