General metabolism. Intermediary metabolism

Choose the correct answer:

1. Metabolism is …:

A. the sum of all the chemical transformations taking place in a cell or organism;

B. the precursor which is converted into the end products;

C. the degradative phase in which organic nutrient molecules are converted into smaller, simpler end products;

D. the phase in which small, simple precursors are built up into larger and more complex molecules;

E. the pathway characterized release energy.

2. Catabolism is…:

A. the sum of all the chemical transformations taking place in a cell or organism;

B. the precursor which is converted into the end products;

C. the degradative phase of metabolism in which organic nutrient molecules are converted into smaller, simpler end products;

D. the phase in which small, simple precursors are built up into larger and more complex molecules;

E. the pathway characterized input of energy.

3. Anabolism is…:

A. the sum of all the chemical transformations taking place in a cell or organism;

B. the precursor which is converted into the end products;

C. the degradative phase of metabolism in which organic nutrient molecules are converted into smaller, simpler end products;

D. the biosynthesis phase of metabolism in which small, simple precursors are built up into larger and more complex molecules;

E. the pathway characterized release energy.

4. Which one of the following statements concerning purposes of the metabolism in human body is in correct? Metabolism is necessary to…

A. obtain chemical energy by capturing solar energy;

B. convert nutrient molecules into the cell’s own characteristic molecules, including precursors of macromolecules;

C. polymerize monomeric precursors into macromolecules: proteins, nucleic acids, lipids, and polysaccharides;

D. synthesize biomolecules required for specialized cellular functions, such as messengers, pigments, membrane lipids;

E. degrades biomolecules required for specialized cellular functions, such as messengers, pigments, membrane lipids;

5. Metabolite is…:

A. the sum of all the chemical transformations taking place in a cell or organism;

B. the precursor which is converted into a product through a series of metabolic intermediates;

C. the degradative phases of metabolism in which organic nutrient molecules are converted into smaller, simpler end products;

D. the biosynthesis phase of metabolism in which small, simple precursors are built up into larger and more complex molecules;

E. the pathway characterized release energy.

6. Metabolic pathway is…:

A. the series of enzyme- catalyzed reactions;

B. the precursor which is converted into the end products;

C. the degradative phases of metabolism in which organic nutrient molecules are converted into smaller, simpler end products;

D. the biosynthesis phase of metabolism in which small, simple precursors are built up into larger and more complex molecules;

E. the pathway characterized release energy.

7. What the cell macromolecules do you know? Choose the in correct answer.

A. proteins;

B. polysaccharides;

C. amino acids;

D. lipids;

E. nucleic acids.

8. What the precursor molecules do you know? Choose the in correct answer.

A. amino acids;

B. sugars;

C. fatty acids;

D. proteins;

E. nitrogenous bases.

9. What the energy depleted end products do you know? Choose the in correct answer.

A. CO₂;

B. H₂O;

C. NH₃;

D. C₆H₁₂O₆;

E. CH₃COCH₃.

10. Choose the in correct answer. The important Co-enzyme A derivatives are…:

A. Acetyl CoA;.

B. Succinyl CoA;

C. Hydroxymetylglutaryl CoA;

D. Lecithinyl CoA;

E. Acyl CoA and Malonyl CoA.