What should we do to prepare for a quiz?

1. What should we do to prepare for a quiz? • Why do we want to learn about cells? (first 20 minutes of class) • Do we have what we need to prepare for the quiz? Is the information correct? • Check in: What do we know? What should we review? (last 20 minutes of class)

2. 1. Why do we want to know about cells? • We are made of cells. If our cells are healthy, we are healthy. If our cells are NOT healthy, it makes it hard for us to live healthy lives. • The more we know about what happens in cells, the more we can do to ‘take care of’ them so we can live better. • Everyone has heard of the disease cancer. Here is a short story about one kind of cancer.

3. Using Genetics to save lives • Within the last 20 years, scientists and doctors have learned about the ‘code’ that we call DNA. This code is made up of Adenine, Thymine, Cytosine, and Guanine (the A’s, T’s, C’s, and G’s) we’ve looked at in our textbook on page 67. • This ‘code’ determines whether we have straight hair, curly hair, if we are tall or short, or basically everything about us.

4. Several years ago DNA was collected from a large number of people and analyzed. Research was done on this group of people to determine who had different ‘situations’ that might be attributed to their genes. One of these situations was breast cancer.

5. It was found that a large percentage of women who have or have had breast cancer had a section of their DNA that was identical to each other – and different from women who didn’t have breast cancer.

6. 23 pairs of chromosomes • A large number of women who had breast cancer had DNA that looked ‘different’ on chromosome 17. • Play Video

7. How does this save lives? • It is now believed that a large contributor to cancer is genetics. If a person has a large number of relatives who have or have had breast cancer their doctor might recommend that they have their DNA analyzed to determine if they carry the Brca 1 gene. • The Br-east ca-ncer 1 gene • If they do, they and their doctor will be more aware of the possibility and test for the condition as often as necessary.

8. If the person develops breast cancer, it is more likely that it will be discovered early. • This makes treatment more effective and increases the likelihood that the person will survive with few future concerns.

9. 2. Do we have what we need to prepare? Take out your three ring binders, please find the following pages. • H-4 Cell Processes and Energy: Photosynthesis • H-4 Cell Processes and Energy: Cell Respiration • H-4 Cell Processes and Energy: Cell Division • N-6 Cellular Respiration/Cell Division • V-1 Vocabulary • If you cannot find your copy, get another one from the front table……..

10. Please take approximately 15-20 minutes to finish any parts of your worksheets that are incomplete • When you are done with a sheet, please check your answers using the “keys” taped to the counter in the back of the room. You can make corrections/additions to your work if needed. • If you are done with each of these assignments, please make flashcards etc., to help you more fully understand the topics.

11. During the last 20 minutes of class. • Please put away your papers and take the following quiz. • Note: these are example questions on the topics we have learned about in class.

12. 3. Chapter 2 Quiz Practice/Review Photosynthesis, Cellular Respiration, and Cell Division

13. Write “Review” on the top of the paper – half sheets of paper on the front table • Write your name and hour at the bottom of the page • Number 1-10 on the left side • You DO NOT have to turn this in. Review 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. Greg Puent Core 8C

14. Question 1 • Plants use Sunlight, Carbon Dioxide, and Water to make food in a process called:

15. Question 2 • Put the Stages of the Cell Cycle in Order: Mitosis Cytokinesis Interphase

16. Question 3 • During Cellular Respiration, cells use Glucose and oxygen to make what three things?

17. Question 4 • Which organelle does photosynthesis occur in?

18. Question 5 • Which organelle does Cellular Respiration occur in?

19. Question 6 • Each chromosome is made up of two of these? • Bonus: How many pairs of chromosomes do humans have?

20. Question 7 • During the growth phase of Interphase, specifically what happens to the size of the cell.

21. Question 8 • Cellular Respiration occurs in Mitochondria. What type(s) of organisms does Cellular Respiration occur in? (i.e. animal cells, plant cells, fungus cells, bacteria cells, etc…)

22. Question 9 • What is an Autotroph?

23. Question 10 • The four stages of Mitosis can be thought of as PMAT….. What do those letters stand for?

24. How did we do? • Photosynthesis • Interphase – Mitosis – Cytokinesis • Carbon Dioxide, Water, Energy • Chloroplasts • Mitochondria • Chromatids – 23 pairs • Doubles in size • All living things/all cells • An organism that makes its own food • Prophase/Metaphase/Anaphase/Telophase

25. If time remains in class: • Please identify what topics you still have questions on and figure out how and when (before class on Friday) these can be answered!