The energy which is required for life processes is obtained by
A. Hydrolysis of Macromolecules
B. Hydrolysis of food
C. Oxidation of Macromolecules
D. Carboxylation of Macromolecules

Subtopic:  Introduction |
 87%
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The following statements are true except

(1) All the food that is respired for the life processes comes from photosynthesis

(2) Carnivores depend indirectly on plants for their food

(3) Saprophytes depend on dead and decaying matter

(4) Respiration is a metabolic process that occurs intercellular spaces

Subtopic:  Introduction |
 77%
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Respiration is

(1) Breaking of a type of bonds like ionic or non ionic of complex compounds through oxidation within the cell by utilizing bulk of energy

(2) Breaking of C-C bonds of simple molecules through hydrolysis within the cell by releasing energy

(3) Breaking of C-C bonds of complex molecules through oxidation within the cell to release considerable amount of energy

(4) Breaking of C-C bonds of complex molecules through hydrolysis within the cell by releasing energy

Subtopic:  Introduction |
 88%
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Respiratory substrates are the compounds

(1) Which gets oxidized during Respiration

(2) Which gets hydrolysed during Respiration

(3) Which gets reduced during Respiration

(4) Which catalyzes process of Respiration

Subtopic:  Introduction |
 89%
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Carbon skeletons produced during respiration is

(1) Used as energy source

(2) Used as precursors for biosynthesis of other molecules in the cell

(3) Used for synthesis of ATP by ATP synthase

(4) Used as remanent of biosynthesis of proteins

Subtopic:  Amphibolic Nature of Respiration |
 69%
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The plants do not breathe can be justified except

(1) Plants do not have sophisticated organs for gaseous exchange

(2) Each plant part takes care of its own gas-exchange needs

(3) There is huge transport of gases from one plant part to another

(4) Roots, stems and leaves respired at rates far lower than animals do.

Subtopic:  Introduction |
 68%
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The step of Glycolysis where NADH is produced actually results in
P.Oxidation of PGAL
Q.Reduction of NAD+
R.Production of BPGA
S.Use of Inorganic phosphate
T. Production of NADH+ H+
1. PQRST
2. QRS
3. RST
4. PRS

Subtopic:  Glycolysis |
 72%
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The energy yielding steps of glycolysis are

(1) Conversion of PGA to BPGA and Conversion of PGAL to DHAP

(2) Conversion of PGAL to PGA and Conversion of BPGA to PGA

(3) Conversion of BPGA to PGA and Conversion of PEP to Pyruvate

(4) Conversion of pyruvate to PEP and PGAL to DHAP

Subtopic:  Glycolysis |
 79%
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What is the total amount of ATP produced in Glycolysis?

(1) 4

(2) 2

(3) 6

(4) 8

Subtopic:  Glycolysis |
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The metabolic fate of pyruvate depends on

(1) Cellular Need

(2) Pace of enzyme activity

(3) Reaction intermediates

(4) NADH production process

Subtopic:  Glycolysis |
 75%
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