EASY
Earn 100

What is catabolism and anabolism?

Important Questions on Respiration in Plants

HARD

Find out where transketolase and epimerase reactions occur among the following:

i) G-3-P+DHAP Fructose -1-6- bisphosphate

ii) Sedoheptulose- 7- Phosphate +G-3-P Xylulose -5-P+ Ribose -5- Phosphate

iii) Ribose -5- Phosphate Ribulose -5- Phosphate

iv) Xylulose -5 -Phosphate  Ribulose-5 - Phosphate

v) Fructose - 6 -Phosphate +G-3-P Xylulose- 5 -Phosphate + Erythrose -4-Phosphate

The correct combination is

EASY
Assertion (A): Respiratory pathway is amphibolic pathway.
Reason (R): Respiratory pathway is involved in both anabolism and catabolism.
HARD

For the Amphibolic pathway, choose the correct option of true assertions from the given assertions. 

(I) Lipid enters the first stage of the respiratory pathway.

(II) The conversion of carbohydrates into glucose, before their entry into respiration is not compulsory.

(III) Protein enters into the respiratory pathway in the form of Pyruvic acid.

(IV) Oxidation and formation of lipid and protein, these two events take place.

MEDIUM
Choose the correct statements regarding entry of substrates into respiratory pathway.
A) The amino acids will be formed by protease activity on proteins.
B) Carbohydrates will be converted into glucose for entry.
C) Amino acids will enter as pyruvate or acetyl COA.
D) Fatty acids will be entered as PGAL.
MEDIUM
Respiration is a catabolic process. Comment.
EASY
Why is respiratory pathway referred to as an amphibolic pathway? Explain.
EASY
Which of the following biomolecule is common to respiration-mediated breakdown of fats, carbohydrates and proteins?
EASY
Aerobic respiratory pathway is appropriately termed
EASY
One molecule of glucose on complete oxidation yields:
MEDIUM

Represent the union of two sets by Venn diagram for each of the following.

X={x | x is a prime number between 80 and 100}

Y={y | y is an odd number between 90 and 100}

MEDIUM
Which of the following justifies the amphibolic nature of respiratory pathway rather than a purely catabolic one?
EASY
Respiratory pathway is believed to be a catabolic pathway. However, nature of TCA cycle is amphibolic. Explain.
EASY
Fat prior to its oxidation associate with
MEDIUM

Four mutant strains of bacteria (1-4) all require substance S to grow (each strain is blocked at one step in the S-biosynthesis pathway). Four plates were prepared with minimal medium and a trace of substance S, to allow a small amount of growth of mutant cells. On plate A, mutant cells of strain 1 were spread over entire surface of the agar to form a thin lawn of bacteria. On plate B, the lawn was composed of mutant cells of strain 2, and so
on. On each plate, cells of each of the four mutant types were inoculated over the lawn, as indicated in the figure by the circles. Dark circles indicate excellent growth. A strain blocked at a later step in the S substance metabolic pathway accumulates intermediates that can 'feed' a strain blocked at an earlier step.

Question Image 

What is the order of genes (1-4) in the metabolic pathway for synthesis of substance S ?

HARD
Refer to the given figure and select the correct option for A, B, C and D.
Question Image
MEDIUM
Which intermediate compound is involved in the synthesis of amino acids ?
MEDIUM
Which of the following statements regarding metabolic pathways is incorrect?
EASY
Why is Krebs cycle referred as amphibolic pathway?
HARD
Write four differences between catabolic and anabolic processes with suitable examples.