Read each of the Quick Questions below and write down your answer.
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Test Number PS-2025
Quick Questions
1) Macromolecules are the parts used to make biopolymers. (True / False)?
2) Monomers are simple molecules that can be joined together in longer chains or strings. (True / False)?
3) Covalent bonds hold monomers together in biopolymers. (True / False)?
4) In heteropolymers all the monomer units are exactly alike. (True / False)?
5) As two monomer units are joined together a molecule of water is also formed. (True / False)?
6) Lipids and some polysaccharides are examples of homopolymers. (True / False)?
7) Proteins and nucleic acids are examples of homopolymers. (True / False)?
8) Hydrocarbons are found in waxes and fatty acids but not in lipids. (True / False)?
9) Hydrocarbons are found as a component in lipids. (True / False)?
10) All fatty acids have a carboxylic acid reactive group at one end of the hydrocarbon chain. (True / False)?
11) Hydrocarbons are always hydrophilic. (True / False)?
12) Carboxylic acid groups are always hydrophilic. (True / False)?
13) A triglyceride is an example of a neutral lipid. (True / False)?
14) There are two different sugars joined together in a typical monosaccharide molecule. (True / False)?
15) There are two of the same sugars joined together in a typical monosaccharide molecule. (True / False)?
16) A polysaccharide chain can have a single linear chain or a multiply branched chain. (True / False)?
17) Carbohydrates consist of carbon, hydrogen and oxygen in the ratios 2:4:2. (True / False)?
18) Glucose is a disaccharide. (True / False)?
19) Starch is a homopolymer of glucose. (True / False)?
20) Starch is a heteropolymer of glucose. (True / False)?
21) Glycogen is found mainly in plant roots where it used for energy storage. (True / False)?
22) Carbon atoms link to oxygen atoms by sharing electrons. (True / False)?
23) Cellulose molecules never contain covalent bonds in which carbon is linked to oxygen. (True / False)?
24) Cellulose is a polymer of maltose, but in a different form to that found in non-plant material. (True / False)?
25) Animals that eat cellulose digest it directly in the stomach, making it a good source of instant energy. (True / False)?