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Biology NEET - XI: Chapter 14- Respiration Part 3

Biology23 CardsCreated about 2 months ago

A set of flashcards covering key concepts in respiration, including respiratory quotient, glycolysis, fermentation, and the Krebs cycle.

What is used to measure respiratory quotient?

Respirometre
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Key Terms

Term
Definition
What is used to measure respiratory quotient?
Respirometre
What is the respiratory quotient of fats?
≈0.7
What is the respiratory quotient of proteins?
≈0.9
What is the respiratory quotient in succulents?
0
What is the respiratory quotient of organic acids?
1
What is the respiratory quotient in anaerobic respiration?
Infinity

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TermDefinition
What is used to measure respiratory quotient?
Respirometre
What is the respiratory quotient of fats?
≈0.7
What is the respiratory quotient of proteins?
≈0.9
What is the respiratory quotient in succulents?
0
What is the respiratory quotient of organic acids?
1
What is the respiratory quotient in anaerobic respiration?
Infinity
Which step in respiration is present in all living organisms?
Glycolysis
Which enzyme catalyses the phosphorylation of glucose and fructose?
Hexokinase
Expand PGAL
Glyceraldehyde-3-phosphate
Expand BPGA
1,3 bisphosphoglyceraldehyde
How many redox equivalents are removed from PGAL in glycolysis?
2
What oxidises PGAL to BPGA in glycolysis?
Inorganic phosphate
Which enzymes catalyse the conversion of pyruvate to CO2 and ethanol in fermentation?
Pyruvic acid decarboxylase and alcohol dehydrogenase
Which enzyme reduces pyruvic acid to lactic acid in lactic acid fermentation?
Lactate dehydrogenase
What is the reducing agent in fermentation?
NADH
What is the first step of Kreb's cycle called?
Condensation
Which enzyme catalyses the condensation of oxaloacetic acid to citric acid?
Citrate synthase
What is released along with citric acid in the first step of Kreb's cycle?
Co-A
Cyt -c acts as a mobile carrier between?
Enzyme complex III and enzyme complex IV
Which is the complex V of electron transport chain of mitochondria?
ATP synthetase
What is the net ATP gain in respiration of one glucose molecule?
38

NADH is oxidised to NAD+ rather slowly in aerobic respiration, but very vigorously in anaerobic respiration. True/false?

False
| NADH is oxidised to NAD+ rather slowly in anaerobic respiration, but very vigorously in aerobic respiration.

What is the respiratory quotient of tripalmitin?
0.7