Pic 6 19/4/12

This person suffers from Pellagra. Pellagra is a disease which means there is a lack of Niacin[B3]. He/she would need to eat food that is rich of niacin such as tuna, chicken and salmon.

Pic 3 19/4/12

This guy suffers from beriberi. Beriberi is a disease in which the body has a lack of thiamin[B1]. He would need to eat food that contains a rich amount of thiamin such as nuts, brown rice and fish.

sources 19/4/12

http://www.imageenvision.com/photo/6769-picture-of-a-child-with-kwashiorkor-disease-from-severe-dietary-protein-deficiency-by-kapd [IMAGE ENVISION]

http://www.livestrong.com/article/493704-food-diet-for-those-who-have-kwashiorkor/ [LIVESTRONG.COM]

http://health-care-you.blogspot.com/2009/03/health-care-nutrition-rickets.html[HEALTHCARE NUTRITION]

http://nutritiondata.self.com/foods-000102000000000000000.html[

http://www.tutorvista.com/content/biology/biology-i/human-diseases/nutritional-disorders.php[TUTORVISTA.COM]

http://www.livestrong.com/article/77597-list-foods-iodine/[LIVESTRONG.COM]

http://www.medicalnewstoday.com/articles/155758.php[MNT]

http://arias-yakuza.blogspot.com/2011/12/obesity-dangers-to-your-health.html[YAKUZA BLOG]

http://www.medicinenet.com/anorexia_nervosa/article.htm[MEDCINE NET.COM]

http://library.thinkquest.org/TQ0312847/obesity.htm[ORACLE]

http://rambio2011.wikispaces.com/6c_Dietary+Related+Diseases[WIKISPACES]

http://nutritiondata.self.com/foods-000102000000000000000.html[NUTRION DATA]

http://www.buzzle.com/articles/thiamine-rich-foods.html[BUZZLE.COM]

http://www.nlm.nih.gov/medlineplus/ency/article/000339.htm[MEDCINEPLUS]

Pic 9 19/4/12

This lady suffers from anorexia. Anorexia is an eating and phycological disorder, and also means a deficiency of food. The person is dieting to lose weight. She should eat more healthy food.

Pic 8 19/4/12

This person suffers from obesity. He/she should eat fresh fruits and vegetables and low-fat milk and also

exercise more.

Pic 2 19/4/12

This boy suffers form Rickets. It is the disorder of the bones in children leading to their weakening and softening due to deficiency of Vitamin D and then Calcium. He should eat more food with Vitamin D like salmon, trout and sardine.

Pic 7 19/4/12

This person is suffering from scurvy. Scurvy is a disease whereby the person has vitamin C deficiency. He/her should drink more orange juice, and then go on to eat more fruits and vegetables.

Pic 4 19/4/12

This guy suffers from Goitre. He suffers from iodine deficiency. He should eat iodised food like seaweed, milk, potato and seafood.

Pic 1 19/4/12

The boy is suffering from Kwashiorkor. It is a severe dietary protein deficiency. He should eat carbohydrate food such as fruits, starchy vegetables, breads and cereals to provide calories. Then the he should consume foods containing proteins such as meat, fish, poultry, eggs, soybeans and legumes.

Osmosis revise questions 30/3/12

Why do you think the Paramecium needs to expel fluid from itself?


I think that it needs to do so as the vacuole is already very full. If it continues storing water, it would explode, so to prevent this from happening, the cell would expel liquid from itself.

Osmosis video 30/3/12

What is the result of this experiment?
The dialysis tubing that contained starch solution turned dark blue.


Explain the results that you see in the video.
The iodine in the water passed through the dialysis tubing into the starch solution. The dialysis tubing is a selectively permeable membrane, so since starch solution when interacted with iodine would turn dark blue, the starch solution in the dialysis tubing would turn dark blue.

Osmosis 30/3/12

Using figure 1 and figure 2, describe what you think happened to the plant cells in each of the figure.What does it mean by hypertonic and hypotonic?

Figure 1

Water molecules would move into the hypotonic cell, thus the cell would explode. Water molecules would move away from the hypertonic cell,thus the cell would shrink.

Figure 2

Water molecules move into the cell, thus the cell becomes bigger. 




Hypertonic is when water molecules from the surroundings move into the cell. Hypertonic is when water molecules from the cell moves to the surroundings.