MCQs Biology [6] Posted on 2024-05-04Author admin 0 1. DNA (deoxyribonucleic acid) contains four nitrogenous bases including Adenine (A), Thymine (T), Cytosine (C), Uracil (U) Adenine (A), Guanine (G), Cytosine (C), Uracil (U) Adenine (A), Thymine (T), Guanine (G), Uracil (U) Adenine (A), Thymine (T), Guanine (G), Cytosine (C) 2. Molecules having little or no propensity to dissolve in water are called _________ Hydroscopic molecules Amphiphilic molecules Hydrophilic molecules Hydrophobic molecules 3. Polysaccharides are formed when two or more monosaccharides are joined together by ________________ Esterification reaction Condensation reaction Hydrolysis reaction Amide formation reaction 4. Amylose is a long, ___________ chain of a-glucose. Hydrophilic chain Unbranched chain Hydrophobic chain Branched chain 5. ___________ of the following is not a Monomer Sucrose Galactose Fructose Glucose 6. ________________ is the property of a living cell or organism to respond to a stimulus Conductivity Transmission Irritability Contractility 7. Molecules repel oils are called _________ Oleophobic molecules Lipophilic molecules Hydrophilic molecules Amphiphilic molecules 8. _____________ is the process by which cells release substances that are useful elsewhere in the body Urination Sweating Excretion Secretion 9. Nucleic acids are formed by sequences of ____________ Nucleotides. Fatty Acids Monosaccharides Amino Acids 10. _____________ is the process for the removal of waste products from the body Urination Secretion Sweating Excretion Loading …
