939693
Descrição
Quiz por emmabrudenell, atualizado more than 1 year ago
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Criado por emmabrudenell
quase 10 anos atrás
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Questão 1
Questão
The main enzymes targets for regulation in the krebs cycle are:
Responda
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citrate synthase and fumarase
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Aconitase, succinate dehydrogenase and fumarase
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citrate synthase, isocitrate dehydrogenase and alpha ketoglutarate dehydrogenase
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isocitrate dehydrogenase and alpha ketoglutarate dehydrogenase
Questão 2
Questão
Sodium fluoroacetate is...
Responda
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part of the krebs cycle
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an enzyme in the krebs cycle
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A poison which disrupts the krebs cycle
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Naturally in the body and is an activator of the krebs cycle
Questão 3
Questão
Beriberi is a vitamin C deficiency characterised by neurological and cardiac symptoms
Responda
- True
- False
Questão 4
Questão
Leigh's syndrome is a fatal neurodegenerative disorder caused by inherited faults in oxidative phosporylation. The pathology of the disease is bilateral lesions. Where are these found?
Responda
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thalamus, Basal ganglia and brain stem and spinal cord
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thalamous, Basal ganglia and brain stem
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brain stem, basal ganglia and spinal cord
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spinal cord and brain stem
Questão 5
Questão
Electrons used in oxidative phosphorylation come from...?
Responda
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NADH
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FADH2
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NADH and FADH2
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The cytosol of the mitochondrion
Questão 6
Questão
Complex two pumps out 2 hydrogen ions for every 2 electrons
Responda
- True
- False
Questão 7
Questão
The krebs cycle can be regulated by hormones
Responda
- True
- False
Questão 8
Questão
What is Beriberi?
Responda
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A vitamin C deficiency- characterised by neurological and cardiac symptoms
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A vitamin b1 deficiency- characterised by neurological and cardiac symptoms
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A vitamin b1 deficiency- characterised by muscle wasting
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A vitamin C deficiency- characterised by muscle wasting
Questão 9
Questão
The main target for regulation in the krebs cycle is on the reactions that are reversible
Responda
- True
- False
Questão 10
Questão
The PDH is inactive when bound to phosphate
Responda
- True
- False
Questão 11
Questão
The PDH is required in the krebs cycle for the following reaction to take place; oxaloacetate+ acetyl CoA ---> citrate
Responda
- True
- False
Questão 12
Questão
Which of the following are the steps which are regulated in glycolysis?
Responda
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glucose to glucose-6-phosphate
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glucose-6-phosphate to fructose-6-phosphate
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fructose-6-phosphate to fructose-1,6-bisphosphate
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3-phosphoglycerate to 2-phosphoglycerate
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phosphoenolpyruvate to pyruvate
Questão 13
Questão
Arsenate will substitute for phosphate in 3- phosphoglycerate
Responda
- True
- False
Questão 14
Questão
Arsenate is a bad because it makes the net ATP production from the krebs cycle be 0
Responda
- True
- False
Questão 15
Questão
The net ATP production of glycolysis is 2
Responda
- True
- False
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