National MDCAT Preparation Hub

Biological Molecules MCQS

PYQS
Chp Biological Molecules
Part II

11. Polysaccharides are formed by the condensation of hundreds or thousands of monosaccharide units.
DMC 2001

12. Strach gives blue color with iodine test . Mdcat 2008

13. Glycogen is stored on liver and muscles.
DMC 2000,2017 LUMHS 2019

14. Simplest amino acid is Glycine in which radical group is H .Mdcat 2011,13,19

15. Total Amino acids which helps in Protein Synthesis 20.
Mdcat 1998,2017,19

16. Antibodies are example of globular proteins. Mdcat 2009

17. Myosin: Fibrous protein
Mdcat 2015

18.Hemoglobin Quarternary in Structure. Mdcat 2018.

19. Acylglycerol are condensation product of glycerol and three fatty acids.
Mdcat 2013.

20. Ratio of. Glycerol: F.A in Acylglycerol 1:3
LUMHS 2005,2015

Most Repeated PYQs Part 1 BIOLOGICAL MOLECULES
1. Hydrolysis: Process where macromolecules are broken down into their monomers or subunits by the addition of a water molecule.
Buhms 2022,UHS 2022

2. It's just the reverse of condensation. UHS 2023, 2016

3. Carbohydrates contain C, H, O as elements. Mdcat 2012

4. H:O = 2:1 Mdcat 2011

5. According to IUPAC, carbohydrates are defined as "the polyhydroxy carbonyl compounds". Carbonyls are aldehydes and ketones. Mdcat 2016

6. General formula of monosaccharides: CnH2On Mdcat 2017

7. Formula of triose: C3H6O3 DMC 2005

8. Simplest keto monosaccharide: Dihydroxyacetone. MDCAT 2013

9. Maltose is made up of: Alpha Glucose + Alpha Glucose. DMC 2001,MDCAT 2016
Linkage: Alpha 1-4 GSL

10. Lactose: Reducing. MDCAT 2019
Related: Maltose and all other monosaccharides are reducing. Sucrose and Raffinose are non-reducing.