Which of the following statements is incorrect?

(1) Glucose is the favoured substrate for respiration

(2) All carbohydrates are usually first converted into glucose before they are used for respiration

(3) Other respiratory substrates are also respired but they do not enter the respiratory pathway at very first step

(4) Fats directly enter the respiratory pathway

(1) Within Krebs’ cycle

(2) As Pyruvate or Acetyl CoA

(3) As PGAL

(4) Both A and B

(1) Acetyl CoA

(2) PGAL

(3) BPGA

(4) Pyruvic Acid

(1) Some Ratio

(2) Some amount of oxygen

(3) Some amount of carbon dioxide

(4) Cannot be one

(1) The type of respiratory substrate used

(2) The place in which respiration is occurring

(3) The amount of ventilation

(4) Breathing surface

1. 3,3

2. 6,3

3. 3,6

4. 6,6

(1) A fatty acid

(2) C51 H98 O6

(3) C48 H96 O5

(4) Both A and C

(1) Carbohydrate

(2) Fatty Acid

(3) Lipid

(4) Protein

(1) In living organisms, respiratory substrates are often more than one

(2) Pure proteins and fats can also be used as respiratory substrate

(3) Fermentation takes place under anaerobic conditions in many prokaryotes, unicellular Eukaryotes and in germinating seeds

(4) Oxygen is the ultimate acceptor of electrones and it gets reduced to water