Topic 2.1: Molecules to Metabolism Flashcards Preview

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Flashcards in Topic 2.1: Molecules to Metabolism Deck (20)
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1

Metabolism

Web of all enzyme-catalysed reactions that occur within a particular organism.

2

Molecular biology

Explains the biological processes in terms of chemical substances involved.

3

Organic compounds

Molecules that contain carbon and are found in living things.

4

Exceptions of organic compounds (4)

a) Carbonates (CO3)
b) Carbides (CaC2)
c) Carbon oxides (CO2)
d) Cyanides (CN)

5

Capacity of carbon compounds

4 covalent bonds

6

Biomacromolecules (4)

a) Carbohydrates
b) Lipids
c) Proteins
d) Nucleic acids

7

Carbohydrates

a) Composed of (CH2O)n
b) Source of energy
c) Short-term energy storage
d) Recognition molecule and structural component

8

Lipids

a) Non-polar, hydrophobic molecules
b) Long-term energy storage
c) Cell membrane

9

Nucleic acids

a) Genetic material of all cells and determines the inherited features of an organism
b) DNA functions as a master code for protein assembly.

10

Proteins

a) Make over 50% of the dry weight of cells; are composed of CHONS.
b) Enzymatic activity
c) Structural molecules.

11

Monomers of macromolecules

a) Monosaccharide
b) Nucleotide
c) Amino acid
d) Fatty acid / Glycerol

12

Polymer

a) Polysaccharide
b) DNA / RNA
c) Polypeptide
d) Triglyceride

13

Anabolism

a) Synthesis of complex molecules from simpler ones
b) Condensation reactions
c) Requires energy

14

Catabolism

a) Breakdown of complex molecules into simpler ones.
b) Hydrolysis reactions
c) Releases energy

15

Structure of ribose

a) Up
b) Down
c) Down
d) Up (HOCH2)

16

Structure of glucose

a) Down
b) Down
c) Up
d) Down
e) Up (CH2OH

17

Structure of a fatty acid

a) COOH
b) (CH)n
c) H

18

Structure of amino acid

a) NH2
b) RCH
c) COOH

19

Vitalism

Doctrine that dictated that organic molecules could only be synthesized by living systems.

20

Falsification of vitalism

a) Frederick Woehler disproved the theory of vitalism by artifically synthesizign an organic molecule
b) An organic salt is heated under laboratory conditions to produce urea