4- chemical of life Flashcards
1
Q
molecules making up bodies of living organisms
A
water, carbohydrates, proteins, fats
2
Q
types of carbohydrates
A
monosacchrides, disacchrides, polysacchrides
3
Q
monosacchrides
A
simple, soluble, sweet -glucose
4
Q
disacchrides
A
soluble, sweet -sucrose, lactose, maltose
5
Q
polysacchrides
A
large, insoluble, not sweet -starch (plant seeds) -glycogen (animals liver and muscle) -cellulose (plant cell wall)
6
Q
fats
A
3 fatty acids + glycerol
insoluble
give double energy of carbohydrates
7
Q
uses of fats
A
energy, insulation, germination in plants
8
Q
proteins
A
chains of amino acids
some soluble; hemoglobin, insoluble; keratin
9
Q
water
A
75% of body
universal solvent
10
Q
uses of water
A
- transport glucose in plasma
- dissolve wastes like urea
- dissolve enzymes and nutrients for digestion
11
Q
DNA
A
makes up genes and chromosomes
A—T C—G
sequence in DNA provides code to determine kinds of proteins in our cells
