Which of the following statements are correct?
I. Relative abundance of carbon and hydrogen with respect to other elements is higher in any living organisms
II. Living organisms have more nitrogen and oxygen per unit mass than inanimate objects (e.g., earth crust)
III. All the elements present in a sample of earth’s crust are also present in a sample of living tissue
IV. Living organisms have more Ca,Mg,Na in them than inanimate object
I and II
II and III
I and IV
III and IV
Related Questions
Identify the term ‘ash’ in term of living tissue sample analysis from the statements given below
Organic compounds oxidised to gaseous form ( and water vapour) after burning of the tissue
The material left after burning the tissue which contains inorganic elements (e.g., calcium, magnesium etc.)
Compounds removed in the form of gases
Compounds which may be soluble in intracellular fluid
Which of the following gives fehling’s test?
Pectin
Sucrose
Cellulose
Glucose
Choose the element which is negligible in living matter
Si
Mg
Ca
S
Lipid are found in acid insoluble fraction during the analysis of chemical composition of tissues. Given the reason
It has very high molecular weight
It is polymer
It has low molecular weight
On grinding, the biomembranes are broken into pieces and form insoluble vesicles
Most abundant substance in living organisms
micromolecules
macromolecules
cellular pool
water
Select the secondary metabolites from the list given below
I. alkaloids
II. flavonoids
III. rubber
IV. essential oils
V. antibiotics
VI. coloured pigments
VII. scents
VIII. gums
IX. spices
Choose the correct option
I, II, III, IV, V, VI, VII, VIII, IX
I, II, IV, V, VI, VII
III, IV, VI, VII, IX
I, III, V, VIII
Which of the following statements are correct for polysaccharides?
I. The polysaccharides are found as a part of the acid insoluble pellet
II. These are long chains of sugars
III. They are threads containing different monosaccharides as building blocks
IV. Cellulose is a polymeric polysaccharide consisting of only one type of monosaccharide i.e., fructose
All are correct
All are correct except IV
III and IV
Only IV is correct
The sum total composition of acid soluble and acid insoluble fraction pool represents the
Molecular
Dead cells
Gene library
Cellular pool
Select the incorrect match w.r.t secondary metabolites
Pigments- Carotenoids, Anthocyanins
Toxins- Abrin, Ricin
Drugs- Curcumin, Concanavalin-A
Polymeric substances- Rubber, Gums
Identify wheather the given statements are true or false
I. A protozoan contains thousand of organic compounds
II. Concentration of biomolecules in an organism is not fixed
Both statements I and II are true
Statement I is true, but Statement II is false
Statement I is false, but Statement II is true
Both statements I and II are false
