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6. how many amino acids make a protein?
7. what are long sugar chains called?
- polysaccarides
- monosaccarides
- diasaccarides
8. what is an isotope?
- same number of protons, different number of neutrons
- same number of neutrons, different number of protons
9. what are two sugars called?
- diasaccarides
- polysaccarides
- monosaccarides
10. an element is..
- a chemical substance, all atoms are the same type
- smallest part of an element and can exist as a stable entity
11. what are amino acids?
- carbon, oxygen, sulphur, nitrogen and enzymes
- carbon, hydrogen, oxygen, nitrogen and sulphur
- carbon, hydrogen, oxygen, water and sulphur
12. what are lipids?
- carbon, h2o, proteins
- carbon, hydrogen, oxygen
- carbon, oxygen, phosphates
13. what are carbohydrates (sugars) made of
- carbon, oxygen and hydrogen
- carbon, starch and glucose
- carbon, water and hydrogen
14. protons..
- no electrical charge
- 1 unit negative charge
- 1 unit of positive charge, 1 atomic mass unit
- 1 unit of positive charge, 0 atomic mass unit
15. what are nucleic acids made from?
- proteins and amino acids
- nucleotides
- amino acids and carbon ions
16. when the PH is below 7 the body is
17. what does adenine pair with in DNA
18. electrons..
- 1 unit of positive charge, 0 atomic mass unit
- 1 unit of positive charge, 1 atomic mass unit
- 1 unit negative charge
- no electrical charge, 1 atomic mass unit
19. what is it called when sugars link and a molecule of H2o is released?
- glycosidic linkage
- glycolic linkage
- glycolipid linkage
20. the body is a variety of
- carbon hydrogen oxygen and nitrogen
- carbon hydrogen and nitrogen
- carbon hydrogen and oxygen