Describe the structure of an atom

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Assignment Questions -

Read Chapter 2 in Human Biology 14th Edition by Mader and Windelspecht. And answer the following questions and submit through canvas.

1. How are elements related to matter?

2. How many elements occur naturally? Which four of these makes up over 90% of the human body?

3. Describe the structure of an atom including all three subatomic particle types, their locations within the atom and their charges.

4. What is the difference between atomic number, atomic mass and mass number?

5. What are three uses of radioisotopes?

6. Describe an ionic bond and give one example of a compound formed by ionic bonding.

7. Describe a covalent bond and give one example of a compound formed through covalent bonding.

8. What does it mean to say that water is polar? Why is this important?

9. Describe four properties of water that are due to water's polarity or hydrogen bonding.

10. What is the difference between an acid and a base? Include both pH and chemical behavior in your answer.

11. What are buffers and why are they important to living systems?

12. When would a cell use the dehydration reaction? When would a cell use hydrolysis? (in other words, in order to perform what kind of action or process)

13. Give a very brief description and a few examples of each of the three main types of carbohydrates. Include in your answer which of these are simple and which are complex.

14. What are the three main types of lipids? Give a brief explanation of how the FUNCTIONS of these three types of lipids differ.

15. What important property do all lipids have in common (why are they grouped together)?

16. What are the monomers that proteins are composed of? How is a"polypeptide" different from a protein?

17. What are four different functions of proteins in the body?

18. What is denaturation and what causes it?

19. How does an enzyme work?

20. How are genes related to proteins?

21. What are three differences between DNA and RNA?

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Reference no: EM131987855

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