GRADE 9: DIFFUSION

Research about the following:

1. The state of equilibrium in being reached in diffusion.

2. Why do plants wilt? How can wilting be controlled?

3. Explain why animal cells do n0t build up turgor pressure.

4. Tissue culture.

5. Reverse osmosis.

6. IONS

7. How to measure the rate of Osmosis.

8. Experiments that involves movement of water.

NOTE: Save your work first, the submission date will follow.

RESEARCH

ALL research should be saved first and will b submitted at the end of each TERM inside the PORTFOLIO!!!

Research on the following:

1. History of the Cell Theory.

2. Cell parts that have membranes.

3. The function of the Cell Wall in Plants

4. The importance of ER in the synthesis of protein.

5. What are LYSOSOMES and why are they considered as "suicidal sacs"?

6. How can a Paramecium perform all cell processes?

7. Where would you find more mitochondria? Explain.

8. Comparison between an animal cell and a plant cell.

9. Prokaryotes.

10. New discoveries about CELL.

GRADE 10: RESEARCH

Note: All research will be done individually then compiled by group. The deadline for submission is on April 23, 2010. Research for the following Nervous System Diseases EXTENSIVELY.

1. Alzheimer Disease
2. Broca Aphasia
3. Cerebello-Olivary Degeneration of Holmes
4. Choroid Plexus Papilloma
5. Huntington Disease
6. Kluver-Bucy Syndrome
7. Locked-in Syndrome
8. Multiple Sclerosis
9. Parkinson Disease
10. Parinaud Syndrome
11. Pituiray Adenoma
12. Tourette Syndrome
13. Wallenberg Syndrome
14. Weber Syndrome
15. Wernicke Aphasia
16. Korsakoff Syndrome
17. Wilson Disease

TO ALL: RIVER MONSTER!

WHAT KIND OF MONSTER LURKS UNDER THE RIVER?

GRADE 8: TOP NOTCHERS

CONGRATULATIONS!

1 Eugene 96% PreIB - 1

2 Fuji 92% PreIB - 2

3 Karina 89% PreIb - 1

4 Sinta 88% PreIB - 1

5 Melinda 87% PreIB - 1

6 Angela 87% PreIB - 2

7 Ivan 86% PreIb - 2

8 Chelsea 84% PreIB - 3

9 Natasha 84% PreIB - 1

10 Phoebe 83% PreIB - 3

KEEP IT UP!!!

GRADE 7: HIGH FLYERS

CONGRATULATIONS!!!

TOP 10

1. Stephanie 100% Preib -2

2. Natasha 97% Preib- 3

3. Brahma 97% Preib-2

4. Evan 96% Preib-1

5. Sebastian 95% Preib-2

6. Josiah 92% Preib-2

7. Harman 92% Preib-3

8. Jesslyn 92% Preib-3

9. Crystal 91% Preib-1

10. Nissi 90% Preib-3

GRADE8: THE HEART

The heart weighs between 7 and 15 ounces (200 to 425 grams) and is a little larger than the size of your fist. By the end of a long life, a person's heart may have beat (expanded and contracted) more than 3.5 billion times. In fact, each day, the average heart beats 100,000 times, pumping about 2,000 gallons (7,571 liters) of blood.

Your heart is located between your lungs in the middle of your chest, behind and slightly to the left of your breastbone (sternum). A double-layered membrane called the pericardium surrounds your heart like a sac. The outer layer of the pericardium surrounds the roots of your heart's major blood vessels and is attached by ligaments to your spinal column, diaphragm, and other parts of your body. The inner layer of the pericardium is attached to the heart muscle. A coating of fluid separates the two layers of membrane, letting the heart move as it beats, yet still be attached to your body.

Your heart has 4 chambers. The upper chambers are called the left and right atria, and the lower chambers are called the left and right ventricles. A wall of muscle called the septum separates the left and right atria and the left and right ventricles. The left ventricle is the largest and strongest chamber in your heart. The left ventricle's chamber walls are only about a half-inch thick, but they have enough force to push blood through the aortic valve and into your body.

The Heart Valves

Four types of valves regulate blood flow through your heart:

• The tricuspid valve regulates blood flow between the right atrium and right ventricle.
  
• The pulmonary valve controls blood flow from the right ventricle into the pulmonary arteries, which carry blood to your lungs to pick up oxygen.
  
• The mitral valve lets oxygen-rich blood from your lungs pass from the left atrium into the left ventricle.
  
• The aortic valve opens the way for oxygen-rich blood to pass from the left ventricle into the aorta, your body's largest artery, where it is delivered to the rest of your body.