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Cell biology- glycolysis, krebs cycle and oxidative phosphorylation

Description

Quiz on Cell biology- glycolysis, krebs cycle and oxidative phosphorylation, created by emmabrudenell on 27/05/2014.
emmabrudenell
Quiz by emmabrudenell, updated more than 1 year ago
emmabrudenell
Created by emmabrudenell over 11 years ago
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Resource summary

Question 1

Question
The main enzymes targets for regulation in the krebs cycle are:
Answer
  • citrate synthase and fumarase
  • Aconitase, succinate dehydrogenase and fumarase
  • citrate synthase, isocitrate dehydrogenase and alpha ketoglutarate dehydrogenase
  • isocitrate dehydrogenase and alpha ketoglutarate dehydrogenase

Question 2

Question
Sodium fluoroacetate is...
Answer
  • part of the krebs cycle
  • an enzyme in the krebs cycle
  • A poison which disrupts the krebs cycle
  • Naturally in the body and is an activator of the krebs cycle

Question 3

Question
Beriberi is a vitamin C deficiency characterised by neurological and cardiac symptoms
Answer
  • True
  • False

Question 4

Question
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?
Answer
  • thalamus, Basal ganglia and brain stem and spinal cord
  • thalamous, Basal ganglia and brain stem
  • brain stem, basal ganglia and spinal cord
  • spinal cord and brain stem

Question 5

Question
Electrons used in oxidative phosphorylation come from...?
Answer
  • NADH
  • FADH2
  • NADH and FADH2
  • The cytosol of the mitochondrion

Question 6

Question
Complex two pumps out 2 hydrogen ions for every 2 electrons
Answer
  • True
  • False

Question 7

Question
The krebs cycle can be regulated by hormones
Answer
  • True
  • False

Question 8

Question
What is Beriberi?
Answer
  • A vitamin C deficiency- characterised by neurological and cardiac symptoms
  • A vitamin b1 deficiency- characterised by neurological and cardiac symptoms
  • A vitamin b1 deficiency- characterised by muscle wasting
  • A vitamin C deficiency- characterised by muscle wasting

Question 9

Question
The main target for regulation in the krebs cycle is on the reactions that are reversible
Answer
  • True
  • False

Question 10

Question
The PDH is inactive when bound to phosphate
Answer
  • True
  • False

Question 11

Question
The PDH is required in the krebs cycle for the following reaction to take place; oxaloacetate+ acetyl CoA ---> citrate
Answer
  • True
  • False

Question 12

Question
Which of the following are the steps which are regulated in glycolysis?
Answer
  • glucose to glucose-6-phosphate
  • glucose-6-phosphate to fructose-6-phosphate
  • fructose-6-phosphate to fructose-1,6-bisphosphate
  • 3-phosphoglycerate to 2-phosphoglycerate
  • phosphoenolpyruvate to pyruvate

Question 13

Question
Arsenate will substitute for phosphate in 3- phosphoglycerate
Answer
  • True
  • False

Question 14

Question
Arsenate is a bad because it makes the net ATP production from the krebs cycle be 0
Answer
  • True
  • False

Question 15

Question
The net ATP production of glycolysis is 2
Answer
  • True
  • False
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