Which of the following best describes metabolism?
The process of breaking down food into simpler substances.
The process of building complex molecules from simpler ones.
The sum of all chemical reactions occurring within a living organism.
The process of energy production in cells.
Related Questions
What is the starting point in the production of food?
Catabolism
Metabolism
Anabolism
Photosynthesis
Enzymes, vitamins and hormones can be classified into a single category of biological chemicals, because all of these
Enhance oxidative metabolism
Are conjugated proteins
Are exclusively synthesized in the body of a living organism as at present
Help in regulating metabolism
Which of the following is NOT a characteristic of metabolic pathways?
Regulation of the pathway
Catalysis by enzymes
Occurring in a non-sequential manner
Often compartmentalized within cells
One of the major feature of metabolic reaction is that they are…
Elementary reactions
Non-linked reactions
Heat evolving reactions
Catalysed reactions
The process of converting complex molecules into simpler ones with the release of energy is known as:
Anabolism
Catabolism
Metabolism
Homeostasis
The regulation of the chemical composition of blood and body fluids and other aspects of its internal environment by an organism to maintain the physiological process is called
Entropy
Enthalpy
Homeostasis
Metabolism
Which of the following is an example of an anabolic process?
Breakdown of glucose into pyruvate
Protein synthesis from amino acids
Hydrolysis of starch into glucose
Oxidation of fatty acids
Which of these is NOT a metabolic process?
Photosynthesis
Respiration
Digestion
Diffusion of oxygen across a cell membrane
Enzymes play a crucial role in metabolism by:
Providing energy for reactions
Consuming energy to halt reactions
Lowering the activation energy of reactions
Altering the equilibrium constant of reactions
In a metabolic pathway, enzyme A catalyzes the conversion of substrate X to intermediate Y. Enzyme B then catalyzes the conversion of Y to product Z. If a mutation in enzyme B renders it completely inactive, which of the following is MOST likely to occur?
Increased production of substrate X.
Accumulation of intermediate Y and depletion of product Z.
No change in the concentrations of X, Y, or Z.
Increased activity of enzyme A to compensate for the loss of enzyme B.
