Pasteur Effect

Q.

How much percentage of energy is released in fermentation?

Q.

What is the difference between homo-lactic and hetero-lactic fermentation?

Q. Which of the following statements are correct with regards to Pasteur effect?

1. Inhibition of fermentation
2. Inhibition of aerobic respiration
3. Heating the food to kill microorganisms
4. None of the above

Q. In glycolysis, enzyme enolase produces

1. Phosphoglyceric acid
2. Phosphoenol pyruvate
3. Phosphoglyceraldehyde
4. Pyruvate

Q. Pasteur effect can be studied in case of

1. Nostoc
2. Pinnularia
3. Saccharomyces
4. Penicillium

Q.

Which main product is obtained by microbial fermentation as ethanol?

Q. Which of the following statements are correct with regards to Pasteur effect?

1. Inhibition of fermentation
2. Inhibition of aerobic respiration
3. Heating the food to kill microorganisms
4. None of the above

Q. When yeast ferments glucose, the products obtained are

1. ethanol and ${\mathrm{CO}}_2$
2. methanol and ${\mathrm{CO}}_2$
3. ethanol and water
4. water and ${\mathrm{CO}}_2$

Q.

Pasteur effect is due to the inhibition of glycolysis by high concentration of

1. ATP

2. ADP

3. AMP

4. Pi

Q. Define lactic acid fermentation

Q. Pasteur effect can be studied in case of

1. Nostoc
2. Penicillium
3. Pinnularia
4. Saccharomyces

Q. The complete oxidation of pyruvate by the step wise removal of :

1. All the hydrogen atoms, leaving two molecules of $C{O}_2$
2. All the hydrogen atoms, leaving three molecules of $C{O}_2$
3. Two hydrogen atoms, leaving three molecules of $C{O}_2$
4. None of the above

Q.

What are the major transport mechanisms for CO₂? Explain.

Q. Which of the following products are obtained by anaerobic respiration from yeast?

1. beer and wine
2. alcohol
3. all of these
4. ${\mathrm{CO}}_2$

Q. Assertion :Rhizopus and Mucor are used in liquor industry. Reason: They cause fermentation.

1. If both the assertion and the reason are true and the reason
   is a correct explanation of the assertion
2. If both the assertion and reason are true but the reason is
   not a correct explanation of the assertion
3. If the assertion is true but the reason is false
4. If both the assertion and reason are false

Q. In yeast during anaerobic respiration, how many glucose molecules are required for production of 38 ATP molecules?

1. 1
2. 2
3. 19
4. 38

Q.

Which of these pairs of processes are anaerobic?

1. fermentation and glycolysis

2. glycolysis and the citric acid cycle

3. fermentation and the citric acid cycle

4. the citric acid cycle and the electron transport system

Q. Assertion :After drinking, alcohol is changed into glucose in liver. Reason: Liver cells are able to form glucose from alcohol by reverse fermentation.

1. Both Assertion and Reason are correct and Reason is the correct explanation for Assertion
2. Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion
3. Assertion is correct but Reason is incorrect
4. Both Assertion and Reason are incorrect

Q. Life without air was first studied by

1. Dubrunfaut
2. Pasteur
3. Cruickshank
4. Berzelius

Q. Pyruvate dehydrogenase complex, needed for the conversion of pyruvic acid to acetyl CoA is located in

1. Matrix of mitochondria
2. Intermembranal space of mitochondria
3. Grana of chloroplast
4. Cytoplasm

Q. Pasteur effect can be studied in case of

1. Nostoc
2. Penicillium
3. Pinnularia
4. Saccharomyces

Q. When yeast ferments glucose, the products obtained are

1. ethanol and ${\mathrm{CO}}_2$
2. methanol and ${\mathrm{CO}}_2$
3. ethanol and water
4. water and ${\mathrm{CO}}_2$

Q. 90% of the alcohol absorbed by the body is eliminated through

1. Sweat
2. Lungs
3. Urine
4. Metabolic process in liver

Q. In yeast during anaerobic respiration, how many glucose molecules are required for production of 38 ATP molecules?

1. 1
2. 2
3. 19
4. 38

Q. Which of the following products are obtained by anaerobic respiration from yeast?

1. beer and wine
2. alcohol
3. ${\mathrm{CO}}_2$
4. all of these

Q. Pyruvate dehydrogenase complex is used in converting

1. Pyruvate to glucose
2. Glucose to pyruvate
3. Pyruvic acid to lactic acid
4. Pyruvate to acetyl Co-A

Q. The elimination of alcohol from body is chiefly accomplished by

1. Skin
2. Kidneys
3. Lungs
4. Oxidation

Q. In alcoholics, liver cells come to accumulate fat. Fat formation is stimulated by

1. Alcohol
2. Acetaldehyde
3. Thiamine deciciency
4. Folic acid deficiency

Q. When yeast ferments glucose, the products obtained are

1. ethanol and ${\mathrm{CO}}_2$
2. methanol and ${\mathrm{CO}}_2$
3. ethanol and water
4. water and ${\mathrm{CO}}_2$

Q. In yeast during anaerobic respiration, how many glucose molecules are required for production of 38 ATP molecules?

1. 1
2. 2
3. 19
4. 38