Tuesday, September 21, 2010

GRADE 10: GENETICS


RESEARCH ON THE FOLLOWING:

1. Explain through an example how the two general sets of factors, heredity and environment determine characteristics of an organism.

2. Gregor Mendel's life and works.

3. Why did Mendel make a good choice with his peas?

4. What do the terms dominant and recessive mean?

5. What is the law of segregation?

6. What is a sex linked trait?

7. What is a sex influenced trait?

8. what is a sex limited trait?

9. What is a non-mendelian inheritance?

10. What causes mutation?

11. Who is Thomas Hunt Morgan?

12. How did Morgan's discovery differ from Mendel's?

13. How is blood type inherited?

14. Special cases of heredity.

15. Hybridization.

16. Selection and Inbreeding.

17. Genetic improvements on humans.

GRADE 9: NUTRIENTS


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.

Wednesday, September 1, 2010

ENZYMES

Research on the following:
1. How do enzymes alter the rate of chemical reactions?
2. What are the industrial applications of enzymes?
3. How are enzymes affected by pH level?
4. What are co-enzymes?
5. How are enzymes affected by temperature?

NOTE: PORTFOLIO SUBMISSION IS ON SEPTEMBER 27 - OCTOBER 1