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6. Which enzyme converts pyruvate to lactate under anaerobic conditions?
- Pyruvate kinase
- Lactate dehydrogenase
- Lactokinase
- Lactase
7. Which of the following is NOT true of Complex I?
- 4 potons pumped into intermembrane space
- Transfer of electrons from NADH to Ubiquinone occurs here
- The ubiquinol formed then diffuses to Complex II
- Contains 6 Iron-sulphur centres and flavin mononucletide
8. Which of the following is true of Leigh syndrome?
- Causes by too much ATP being produced
- Results in lesions in the hypothalamus and the midbrain
- It is an early onset fatal disorder
- Mutations found in complex II
9. Which of the following is NOT true of Fructose-2,-6-bispohosphate?
- Its production is catalysed by PFK-2
- it is phosphorylated it slows down glycolysis
- Regulates pyruvate kinase
- Regulates phosphofructokinase-1
10. Which of the following is NOT true of Hexokinase?
- Type IV found in hepatocytes and buffers glucose levels
- There are large differences in the enzyme kinetics
- Begins in a closed configuration, and opens when glucose binds
- There are 4 types
11. Which of the following is NOT true of the nucleus?
- 10-20 micrometers in diameter
- Located near the apical membrane
- Makes up 10% of the cell body
- Attached to the endoplasmic reticulum
12. What is Chromatin?
- Tightly packaged DNA around nucleosomes
- Loosely packaged DNA of non-dividing cells around histones
- Irregularly shaped region packages all prokaryotic DNA
- Alkaline protein that packages and orders the DNA
13. Which enzyme is used to convert Dihydroxyacetone phosphate to Glyceraldehyde-3-phosphate?
- Phosphoglycerate kinase
- Triose phosphate isomerase
- Glyceraldehyde-3-phosphate dehydrogenase
- Phosphoglycaromutase
14. Which of the following is NOT a building block of the Nuclear Pore Complex?
- Ring subunit
- Archal subunit
- Lumenal Subunit
- Annular subunit
15. Which of the following is NOT an electron carrier in oxidative phosphorylation?
- Iron-sulphur proteins
- NADP and FADP
- Cytochromes
- Ubiquinone
16. Which of the following glycolysis reactions involves adding a phosphate?
- 2-phosphoglycerate to Phosphoenolpyruvate
- 1,3-Bisphosphoglycerate to 3-phosphoglycerate
- Glyceraldehyde-3-phosphate to 1,3-Bisphosphoglycerate
- Dihydroxyacetone phosphate to Glyceraldehyde-3-phosphate
17. Which of the following is NOT true of Sodium fluoroacelate?
- Forms fluorocitric acid which inhibits the krebs cycle
- Used as a Acaricide
- There is no antidote
- Causes an acculumation of citric acid
18. Which of the following occurs at Complex IV?
- Oxygen is formed, proton gradient diminishes
- Oxygen is formed, proton gradient is amplified
- Water is formed, proton gradient is amplified
- Water is formed, proton gradient diminishes
19. Which of the following enzymes does NOT allow for regulation in glycolysis?
- Phosphoglycerate kinase
- Hexokinase
- Phosphofructokinase-1
- Pyruvate kinase
20. What is the cristae?
- A fold in the inner membrane of an organism
- Folds of the outer membrane of mitochondria
- Folds of the inner membrane of mitochondria
- Fluid-filled space between membranes of mitochondria