GRADE 10:

USE THIS TIME TO RESEARCH ON CONSTRUCTING THE DOUBLE CIRCULATION IN MAMMALS WITH YOUR PARTNER. THE CIRCULATION MUST BE OBSERVED.
TIPS: BOTTLES, TUBES AND DYE.

GRADE 9: ENZYMES

1. How do Enzymes alter the rate of chemical reaction?
2. Research about inorganic catalyst and how it is used.
3. How are Enzymes related to Digestion.
4. How are Enzymes classified? Give examples.
5. Research about induced-fit model on enzymes.
6. Research about the industrial applications and uses of Enzymes.
7. Research about Dr. Thomas Brock and his discovery.
8. What are co-enzymes and its use?

GRADE 10: TRANSPORT

THE PORTFOLIO SUBMISSION IS VERY NEAR. MAKE THE NECESSARY PREPARATIONS!
1. Why do large animals such as mammals need a transport system?
2. Discuss the different blood vessels completely.
3. Discuss the components of blood completely.
4. Research on creating synthetic human blood for medical purposes.
5. Discuss carbon monoxide poisoning.
6. Research on medicinal leeches and it helps people.
7. Research about phagocytosis.
8. Research about vaccination.
9. Diagram of a heart.
10. Research on the treatment of coronary heart disease.
11. Differentiate capillary action from transpiration.
12 State the factors which influence the rate of transpiration. Indicate how the rate is affected by each factor.

GRADE 9: ENZYMES

Research about the LOCK AND KEY THEORY of enzymes. Draw a diagram of this theory in an A4 paper. Be ready to EXPLAIN it individually on October 27, 2011, while using the diagram you made.

TIP: Be creative in drawing the diagram. Be ready to defend your knowledge on the theory.

GRADE 10: RESEARCH

1. How does substances such as caffeine which is found in coffee affect the nervous system. List at least 10 substances and its effect on the nervous system.

2. Research about the life and works of Luigi Galvani (1737 - 1798).

3. What is acetylcholine? How is it related in controlling impulse transmission?

4. How does a person become blind? Explain and discuss all possibilities.

5. DESIGN a LOGO to be used on one of the five senses safety from impairment.

6. Write an ESSAY on which sense organ would you least likely to miss if lost.

7. Find and discuss FIVE (5) mental problems that would affect a person's behavior and way of life.

8. DRAW a reflex arc for your portfolio.

9. Compare a human's senses to other animals.

GRADE 9 IGCSE

Research the following:

¡Singapore opened Asia’s largest water desalination plant on Sept. 13, 2005. Water desalination involves reverse osmosis.

¡What is reverse Osmosis?

¡What are the sources of drinking water in Singapore and Indonesia?

¡How much water is consumed in Singapore per day? Indonesia per day?

¡Why does Singapore needs to desalinate water?

GRADE 9 IGCSE

RESEARCH ON THE FOLLOWING:

1. What is food? explain its use in the body of an organism.

2. What is meant by essential and non essential amino acids? How do we get it?

3. In what way is a calorie related to a change in weight?

4. What vitamin deficiency will a pure vegetarian most likely suffer from?

5. People can survive a short time without most nutrients, but they must have water regularly. Why?

6. What is energy?

7. What is a flamingo milk?

8. How does the body control heat loss?

9. How do cholesterol lead to heart disease?

10. How is starch hydrolyzed by enzymes?

11. Explain the quality of proteins.

12. Problems of world food supply.

13. Balanced diet.