1. Analysis of Biomolecules Flashcards

1
Q

Topic - Introduction

A
  • Def Biomolecules
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2
Q

______ are chemical compounds (including organic and inorganic compounds) found in living organisms.

A

Biomolecules

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3
Q

Topic - Analysis of Inorganic compounds of Living Organisms (Destructive method)

A

@ Dry _
@ Gaseous form
@ Ash contains _
@ Comparison of elements

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4
Q

First, weigh a living tissue and dry it to evaporate water.
T/F

A

True

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5
Q

Second, the dried part is burnt to oxidize all carbon compounds to ______ form and are removed.
The remaining is called ______.

A

Gaseous form (CO2 & Water Vapor);
Ash

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6
Q

Analysis of Ash indicates -

A

I. Inorganic elements (Ca, Mg, Na, K, etc.)
II. Inorganic compounds (SO4 2-, PO4 2-, NaCl, CaCO3, etc.)

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7
Q

*Comparison:
Elements|Earth’s crust (Non-living)|Human Body (Living Matter)

A

Carbon (C) | 0.03 | 18.5
Oxygen (O) | 46.6 | 65.0
Nitrogen (N) | Very little | 3.3
Silicon (Si) | 27.7 | Negligible

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8
Q

Topic - Chemical Analysis

A

@ Grind with _
@ Slurry
@ Filterate contains _
@ Retentate contains _
@ Molecular weight _

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9
Q

Grind a living tissue like a vegetable, piece of liver, etc. in ______ acid to get thick ______.

A

Trichloroacetic acid (Cl3CCOOH);
Slurry

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10
Q

Strain slurry through a cheesecloth or cotton cloth to get two fractions such as:

A

I. Filtrate (Acid-soluble pool)
II. Retentate (acid-insoluble fraction)

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11
Q

Topic: Acid-soluble pool

A

Represents _

@ Represents _ composition
@ Molecular weight
@ Contains _

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12
Q

The acid-soluble pool contains Monomeric forms of Biomolecules like:

A

Micro-molecules (Low Molecular weight from 18 to 800 Da)

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13
Q

Acid-soluble Pool includes:

A

I. Amino acids
II. Sugars (Monosacchrides)
III. Nitrogen bases
IV. Pentose sugar
V. Phosphate group
VI. Ions

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14
Q

The acid-soluble pool represents the cytoplasmic composition.
T/F

A

True

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15
Q

Topic - Acid insoluble pool

A

@ Contains Biomarco _
@ Includes macro from _ & _
@ Lipds come under which pool? Why?
@ Cell membranes are broken
@ Avg. Composition of cell

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16
Q

Acid-insoluble pools contain a polymeric form of Biomolecules:

A

Macromolecules (High Molecular weight > 10,000 Da)

17
Q

Acid insoluble pools contain:

A

I. Proteins
II. Carbohydrates (Polysaccharides)
III. Nucleic acids

18
Q

An acid-insoluble fraction represents cytoplasmic + cell organelle composition.
T/F

A

True

19
Q

A lipid is not strictly a macromolecule as:

A

Its molecular weight does not exceed 800 Da

20
Q

Lipid comes under acid-insoluble fraction:

A

Because many lipids form vesicles & arranged into structures like cell membranes

21
Q

When tissue is grinded, cell membranes (made of Lipids) are broken and form water-insoluble vesicles. They cannot be filtered along an acid-soluble fraction.
T/F

A

True

22
Q

The average composition of cells:
a. Water -
b. Protein -
c. Carbohydrates -
d. Lipids -
e. Nucleic acids -
f. Ions -

A

a. Water 70-90%
b. Protein 10-15%
c. Carbohydrates 3%
d. Lipids 2%
e. Nucleic acids 5-7%
f. Ions 1%