REVISION SHEET – COMPONETS OF FOOD 1. Why do children require more proteins than adults?
2. Describe an experiment to test the presence of sugar in a
food sample.
3. Why do doctors discourage excessive intake of fats?
4. Why is water essential to the body?
5. A rickshaw puller who pulls a rickshaw the whole day,
gets very tired by the end of the day. What nutrient
should he eat more to overcome his tiredness?
6. Rahul is a 4 year old growing child. He only drinks
milk. Will this help him to grow well?
7. An overweight person wants to lose weight. Which
nutrient should he eat the least?
8. What are the symptoms of marasmus?
9. What is obesity? What are its causes?
10. How will you test the presence of starch in a given food
sample?
11. What are the functions of dietary fibres (roughage) in
our digestive system? Name four sources of roughage.
12. Why are carbohydrates important components of our
diet? Name two types of carbohydrates.
13. Write the symptoms of a disease caused by the
deficiency of proteins.

hydroxyl -oh

alcohols, always polar, can form hydrogen bonds with h2o molecules

carboxyl -cooh  

cargoxylic acids, has acidic properties which is a source of hydrogen ions, found in cells in ionized for with a charge of oh-1

carbonyl > co

ketone if within skeleton, aldehyde if group is at the end of skeleton, k & a may be structural isomers, it determines 2 sugars (ketose & aldose)

amino -nh2

amines, acts as a base, it can pick up h+ ions from surrounding solution, ionized with charge of 1+

methyl ch2

addition to rna/dna affects and gene expression

phosphate -opo3 ²⁻

organic phosphates, contributes to negative charge to, molecule that it is a part of, and potential to react with h20

sulfhydryl -sh

thiols, cross-linking stabilize the protein, and it is structure

the generally accepted parts of modern cell theory include: all known living things are made up of one or more cells. all living cells arise from pre-existing cells by division. the cell is the fundamental unit of structure and function in all living organisms.

ucd e e. rr. t t t t t t. to

the answer is sex-linked recessive.