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What is the approximate molecular weight range of compounds found in the acid-soluble pool?
The text mentions: 'There is one feature common to all those compounds found in the acid soluble pool. They have molecular weights ranging from 18 to around 800 daltons (Da) approximately.'
According to the average composition of cells, which component constitutes the highest percentage of total cellular mass after water?
Table 9.4 shows: Water (70-90%), Proteins (10-15%), Carbohydrates (3%), Lipids (2%), Nucleic acids (5-7%). Therefore, proteins constitute the highest percentage after water.
The remaining material after fully burning a living tissue, with all carbon compounds oxidized to gaseous forms, is called:
The text states: 'Now if the tissue is fully burnt, all the carbon compounds are oxidised to gaseous form (CO2, water vapour) and are removed. What is remaining is called ‘ash’.'
Which inorganic constituent is represented by the formula $PO_4^{3-}$ in living tissues?
Table 9.2 lists 'Compounds' and includes '$PO_4^{3-}$' alongside '$SO_4^{2-}$', indicating that $PO_4^{3-}$ represents phosphate.
The property that distinguishes primary metabolites from secondary metabolites is that primary metabolites:
The text states: 'While primary metabolites have identifiable functions and play known roles in normal physiological processes, we do not at the moment, understand the role or functions of all the ‘secondary metabolites’ in host organisms.'
What is the percentage by weight of Oxygen (O) in the human body according to elemental analysis data?
Table 9.1, 'A Comparison of Elements Present in Non-living and Living Matter', shows Oxygen (O) in the Human body as 65.0%.
The acid-insoluble fraction is composed of four main types of organic compounds including proteins, nucleic acids, polysaccharides, and:
The context states: 'The acid insoluble fraction, has only four types of organic compounds i.e., proteins, nucleic acids, polysaccharides and lipids.'
If a small amount of living tissue is weighed (wet weight) and then dried to evaporate all water, the remaining material gives:
The passage describes the process: 'One weighs a small amount of a living tissue (say a leaf or liver and this is called wet weight) and dry it. All the water, evaporates. The remaining material gives dry weight.'
In the elemental analysis, which element is listed as 'very little' in the Earth's crust but 3.3% in the human body?
Table 9.1 shows that Nitrogen (N) is 'very little' in the Earth's crust and 3.3% in the human body.
Biomolecules are chemical compounds found in living organisms. Which of the following defines a biomolecule based on its origin?
The text states: 'All the carbon compounds that we get from living tissues can be called 'biomolecules'.'
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