Q: During anaerobic resplration in yeast:

During anaerobic respiration in yeast glucose formed CO2,C2H5OH and energy.

Question 1

The energy releasing process in which the substrate is axidised without an external electron acceptor is called:

Accepted Answer

Correct answer is C

Question 2

During anaerobic conditions, the rate of glycolysis increases is called as:

Accepted Answer

Pasteur's effect : The increase of rate of glycolysis in absence of O2​ is due to the non-availability of those enzymes which are easily available in presence of O2​ .

Question 3

How many ATP molecules are obtained from fermentation of 1 molecule of Glucose?

Accepted Answer

The chemical breakdown of glucose in the absence of oxygen is called as fermentation. This process is also called anaerobic respiration. In this reaction, 2 molecules of ATP along with 2 molecules of NADH are generated during the conversion of glucose to pyruvate. This pyruvate is then converted into lactic acid at the expenditure of 2 molecules of NADH. So the net gain is 2 ATP molecules.

Question 4

In anaerobic respiration, from one glucose molecule how many net ATP molecules are formed:

Accepted Answer

Correct answer is D

Question 5

Pasteur effect is concerned with the shilting of environmental conditions from:

Accepted Answer

Correct answer is C

Question 6

The incomplete breakdown of sugars in anaerobic respiration results in the formation of:

Accepted Answer

C6​H12​O6​⟶2C2​H1​OH+2CO2​+21Kcal

Question 7

Which of the following plant is widely accepted to respire in absence of oxygen?

Accepted Answer

Correct answer is A

Question 8

Cyanide resistant pathway is:

Accepted Answer

Cyanide is deadly poison which inhibit the activity of cytochrome oxidase enzyme of electron transport chain. As in case of aerobic respiration there is no electron transport chain involved, therefore, anaerobic respiration is cyanide resistant pathway.

Question 9

When a molecule of pyruvic acid is subjected to anaerobic oxidation and forms lactic acid, there is?

Accepted Answer

Correct answer is A

Question 10

During cellulose fermentation by anaerobic bacteria in rumen and reticulum, cellulose is majorly converted into:

Accepted Answer

Cellulose is broken down to volatile short-chain fatty acids in ruminants, during cellulose fermentation by anaerobic bacteria.

Question 11

Fermentation is:

Accepted Answer

Fermentation is a type of anaerobic respiration in which the breakdown of glucose takes place to release acids, alcohols and other gases in absence of oxygen. It takes place in the cytoplasm.It involves glycolysis which is the breakdown of glucose to form pyruvic acid which can undergo two different pathways to form the lactic acid or ethanol and carbon dioxide.

Question 12

Which of the following minerals activate the enzymes involved in respiration?

Accepted Answer

Correct answer is B

Question 13

During anaerobic resplration in yeast:

Accepted Answer

During anaerobic respiration in yeast glucose formed CO2​,C2​H5​OH and energy.

Question 14

Fermentation is represented by the equation:

Accepted Answer

Fermentation is an enzyme catalysed, metabolic process whereby organisms convert starch or sugar to alcohol or an acid anaerobically releasing energy.

Question 15

During anaerobic respiration the conversion of pyruvate into acetaldehyde, along with co-enzyme TPP, the cofactor required is:

Accepted Answer

Correct answer is D

Question 16

Continuous addition of sugars in 'fed batch' fermentation is done to:

Accepted Answer

Continuous addition of sugar in 'fed batch' fermentation is done to purify enzymes.

Question 17

Which of the following is the phosphorylating unit?

Accepted Answer

Oxysome acts as the unit of phosphorylation in respiration by the formation of ATP from ADP occur on oxysome. These are present on cristae of mitochondria.

Question 18

Aerobic respiratory pathway is appropriately termed:

Accepted Answer

Correct answer is C

Question 19

Which of the following show higher rate of respiration?

Accepted Answer

Respiration rate high at growing regions like floral and vegetative bud, germinating seedlings, young leaves stem and root apices.

Question 20

How many ATP molecules wil be generated in a plant system during complete oxidation of 40 moles of glucose?

Accepted Answer

Correct answer is C

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