13U9 Retrieval Quiz

What is the universal energy currency for cells?

• ATP

• Glucose

• Oxygen

• NAD

Which part of a mitochondrion is narrow to facilitate the build up of concentration gradients?

• Inter-membrane space

• Matrix

• Outer membrane

• Inner membrane (cristae)

What is not true of NAD and FAD?

• They are hydrogen carriers

• They are electron carriers

• They are proton carriers

• They are oxidised during glycolysis

What happens during glycolysis?

• Glucose becomes 2 pyruvate in the cytosol

• Pyruvate becomes acetyl coenzyme A in the cytosol

• Glucose becomes 2 pyruvate in the matrix

• Pyruvate becomes acetyl coenzyme A in the matrix

How many times is one citrate molecule decarboxylated during Krebs cycle?

• 0

• 1

• 2

• 3

What happens to NAD and FAD at the ETC?

• They donate protons and electrons

• They become reduced

• Their energy is used to create proton motive force

• They phosphorylate ADP

What is the purpose of fermentation?

• To reduce pyruvate

• To oxidise pyruvate

• To reduce NAD

• To oxidise NAD

Which adaptation of rice plants enables them to gain access to oxygen as soon as possible after germination?

• Aerenchyma

• Shallow roots

• Rapid shoot growth

• High levels of ethanol dehydrogenase

Which respiratory substrate enters respiration at the latest point (and therefore has the lowest RQ)?

• Starch

• Glycerol

• Fatty acids

• Amino acids

Which apparatus is used to determine Q10?

• Respirometer

• Methylene blue indicator

• Potometer

• Manometer