Download App

Biomolecules — Chemistry STD 12 Science — Question

Bihar BoardEnglish MediumSTD 12 ScienceChemistryBiomolecules2 Marks
Question
What is the basic structural difference between starch and cellulose ?
✓

Answer

The basic structural difference between starch and cellulose is of linkage between the glucose units. In starch, there is $\alpha$-D-glucosidic linkage. Both components of starch amylopectin and amylose are the polymers of $\alpha$-D-glucose. On the other hand, celluose is a linear polymer of $\beta$-D-glucose in which $C _1$ of one glucose unit is connected to $C _4$ of the other through $\beta$-D-glucosidic linkage.

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Explore more

More "Short Answer Type Questions [2M]" from Biomolecules→Biomolecules — all question types→Chemistry STD 12 Science question papers→Bihar Board STD 12 Science question papers→Bihar Board question paper generator→

Similar questions

If the solubility product of CuS is 6 x 10-16, calculate the maximum molarity of CuS in aqueous solution.
→
Why aluminium is used in aluminothermic process?
→
Write the mechanism of the reaction of HI with methoxybenzene.
→
Name the products of hydrolysis of sucrose. Why is sucrose not a reducing sugar? 
→
Explain the mechanism of addition of HCl to propene.
→
Complete the following reaction by identifying A, B and C.
$\text{A}+\text{H}_2\text{(g)}\xrightarrow{ \ \ \text{Pd/BaSO}_4\ \ }\text{(CH}_3)_2\text{CH}-\text{CHO}$
→
Define native state in reference to protein.
→
Write a note on acidity of phenols.
→
Consider the standard electrode potential values $\left(\frac{M^{2+}}{M}\right)$ of the elements of the first transition series.
TiVCrMnFeCoNiCuZn
-1.63-1.18-0.90-1.18-0.44-0.28-0.25+0.34-0.76

Explain:
i. Eº value for copper is positive.
ii. Eº value of Mn is more negative as expected from the trend. 
iii. Cr3+ is a stronger reducing agent than Fe2+.
→
Write chemical reaction for the preparation of phenol from chlorobenzene.
→