lab

Question 1

qualitative data

Answer 1

descriptive or categorical

Question 2

quantitative data

Answer 2

measurements and numerical info

Question 3

reducing sugars test

Answer 3

• carbs
• identifies presence of reducing sugars (monosaccharides, disaccharides minus sucrose)
• reduces copper ions
• if sugar present, turns red

Question 4

sucrose

Answer 4

made of glucose and fructose

Question 5

iodine starch test

Answer 5

• carb
• starch is polysaccharide, stores energy in plants
• reacts with helical structure of starch, but not mono/disaccharide
• turns solution blue-black if starch present

Question 6

polysaccharide in human cells

Answer 6

glycogen

Question 7

sudan iv test

Answer 7

• lipids
• sudan iv is non polar, only dissolves in other non polar solutes (hydrophobic)
• turns solution red if present

Question 8

all lipids are

Answer 8

hydrophobic

Question 9

biurets test

Answer 9

• proteins
• biuret binds to peptide bonds in proteins (what joins amino acids)
• turns bonds/solution purple

Question 10

what makes 20 diff protein monomers chemical properties different

Answer 10

different amino acid combinations via R group