Topic 2 SL Biology Pt 1 (Macromolecules w/o Nucleic Acids)

In which processes are macromolecules broken down into monomers?

• Anabolism and catabolism

• Catabolism and hydrolysis

• Hydrolysis and reduction

• Reduction and anabolism

Which type of chemical reaction is an example of anabolism?

• Photolysis

• Combustion

• Hydrolysis

• Condensation

hich reaction is an example of catabolism?

• Photolysis of water

• Denaturation of a protein by a change in pH

• Production of maltose from amylose by amylase

• Condensation of glucose to form starch

Which molecule diagram corresponds to the name?

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The diagram shows a cycle of reactions that occurs in human liver cells. Which term describes the overall reactions of this cycle?

• Oxidation

• Catabolism

• Condensation

• Metabolism

The diagram shows the structure of palmitic acid. What type of fatty acid is palmitic acid?

• It is monounsaturated.

• It is polyunsaturated.

• It is saturated.

• It is a trans-fatty acid.

Glucose is absorbed through protein channels in the plasma membrane of epithelium cells in the small intestine. Which characteristics of glucose prevent its diffusion through the phospholipid bilayer?

• It is non-polar and therefore hydrophobic.

• Its hydrogen bonds link with amino acids in the protein channel.

• It is polar and therefore hydrophilic.

• Its covalent bonds interact with the phospholipids.

What characteristic shows that this steroid molecule is a lipid?

• It is made of carbon rings.

• It has a very low proportion of oxygen to carbon.

• It contains OH groups as do fatty acids.

• It is made only of nitrogen, oxygen and hydrogen.

Which molecule can be hydrolyzed?

• Glycerol

• Maltose

• Fructose

• Galactose

The image shows the structural formula of a molecule. What is this molecule?

• Amino acid

• Ribose

• Deoxyribose

• Lactose