Concept explainers
(a)
Interpretation:
The function implied by the enzyme citrate decarboxylase has to be given.
Concept Introduction:
The enzymes are essentially the biocatalysts present in all living systems. Each enzyme catalyzes a characteristic reaction within the biological system. Enzymes on the basis of the substrate on which they act or the reaction that they catalyze can be classified into six classes.
Based on their specific role they are classified into six major classes. These are:
- Ligases: The enzymes that connect two molecules via covalent bonds are termed as ligases.
- Isomerases: The enzymes that catalyze the isomerization reactions are termed as isomerases.
- Lyases: Enzymes that catalyze the cleavage of bonds are called lyases.
- Hydrolases: These enzymes catalyze the cleavage of bonds via hydrolysis present in biological systems.
- Transferases: These enzymes are involved in the transfer of various
functional groups such as methyl, acetyl group, or phosphate group. - Oxidoreductases: As the name suggests, these catalyze the
oxidation and reduction reactions that occur in living systems.
Enzymes are often named in accordance with the substrate on which they act. For example, lactase acts on the disaccharide named lactose and helps to remove the glycosidic linkages of lactose.
(b)
Interpretation:
The function implied by the enzyme adenosine diphosphate phosphorylase has to be given.
Concept Introduction:
Refer to part (a).
(c)
Interpretation:
The function implied by enzyme oxalate reductase has to be given.
Concept Introduction:
Refer to part (a).
(d)
Interpretation:
The function implied by the enzyme nitrite oxidase has to be given.
Concept Introduction:
Refer to part (a).
(e)
Interpretation:
The function implied by the enzyme cis-trans isomerase has to be given.
Concept Introduction:
Refer to part (a).
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Chapter 19 Solutions
GEN ORGANIC CHM LL W/CONNECT
- 2. Use Hess's law to calculate the AH (in kJ) for: rxn CIF(g) + F2(g) → CIF 3 (1) using the following information: 2CIF(g) + O2(g) → Cl₂O(g) + OF 2(g) AH = 167.5 kJ ΔΗ 2F2 (g) + O2(g) → 2 OF 2(g) 2C1F3 (1) + 202(g) → Cl₂O(g) + 3 OF 2(g) о = = -43.5 kJ AH = 394.1kJarrow_forwardci Draw the major product(s) of the following reactions: (3 pts) CH3 HNO3/H2SO4 HNO3/ H2SO4 OCH3 (1 pts)arrow_forwardProvide the product for the reactionarrow_forward
- What is the net ionic equation for the reaction between tin(IV) sulfide and nitric acid?arrow_forwardThe combustion of 28.8 g of NH3 consumes exactly _____ g of O2. 4 NH3 + 7 O2 ----> 4 NO2 + 6 H2Oarrow_forwardWhat is the molecular formula of the bond-line structure shown below OH HO ○ C14H12O2 ○ C16H14O2 ○ C16H12O2 O C14H14O2arrow_forward
- Check all molecules that are acids on the list below. H2CO3 HC2H3O2 C6H5NH2 HNO3 NH3arrow_forwardFrom the given compound, choose the proton that best fits each given description. a CH2 CH 2 Cl b с CH2 F Most shielded: (Choose one) Least shielded: (Choose one) Highest chemical shift: (Choose one) Lowest chemical shift: (Choose one) ×arrow_forwardConsider this molecule: How many H atoms are in this molecule? How many different signals could be found in its 1H NMR spectrum? Note: A multiplet is considered one signal.arrow_forward
- For each of the given mass spectrum data, identify whether the compound contains chlorine, bromine, or neither. Compound m/z of M* peak m/z of M + 2 peak ratio of M+ : M + 2 peak Which element is present? A 122 no M + 2 peak not applicable (Choose one) B 78 80 3:1 (Choose one) C 227 229 1:1 (Choose one)arrow_forwardShow transformation from reactant to product, step by step. *see imagearrow_forwardCheck the box if the molecule contains the listed item. *See imagearrow_forward
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