WorksheetsBasic Biochem test
Total questions: 10
Worksheet time: 5mins
Which of the following does not consist of organic molecules?
Carbon dioxide
Starch
DNA
Lipids
Carbon, hydrogen, oxygen, nitrogen, phosphorus.
These are elements in.....
proteins
nucleic acids
glucose
lipids
What is not a reducing sugar?
glucose
fructose
maltose
sucrose
What is the reagent to test for reducing sugars?
Bial reagent
Iodine
DNS reagent
Biuret reagent
Olive oil is tested with iodine.
What result is to be expected?
Iodine turns from yellow to dark blue
Iodine turns from dark blue to yellow
Iodine turns from yellow to purple
Iodine remains yellow
Which of the following, if any, are polysaccharides?
Beta-glucose
Starch
Sucrose
Glycogen
Cellulose
Name this disaccharide
(a)
What do starch and glycogen have in common?
Alternate glucose molecules are flipped
Presence of both 1,4- and 1,6-glycosidic bonds
Helical and unbranched
Linear and branched
what chemicals need to work in the fume hood?
Ethanol
10% Acetic acid
conc. HCl
1M NaOH
All the following lab equipment you will study today, which one is not included?
hot air oven
centrifuge
vacuum rotary evaporator
thin-layer chromatograph
shaking incubator
