MCQOPTIONS
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MCQOPTIONS
This section includes 14 Mcqs, each offering curated multiple-choice questions to sharpen your Biology knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Which of these statements is not true regarding polysaccharides? |
| A. | Inulin is a polysaccharide made of fructose |
| B. | Chitin is a heteropolymer |
| C. | Glycogen is a highly branched polysaccharide |
| D. | Cellulose makes up cotton fibers |
| Answer» C. Glycogen is a highly branched polysaccharide | |
| 2. |
What is the main constituent of the exoskeleton of arthropods? |
| A. | Chitin |
| B. | Cellulose |
| C. | Glycogen |
| D. | Starch |
| Answer» B. Cellulose | |
| 3. |
Which of these is a complex polysaccharide? |
| A. | Glycogen |
| B. | Inulin |
| C. | Chitin |
| D. | Starch |
| Answer» D. Starch | |
| 4. |
Chitin is a _____ |
| A. | monomer |
| B. | heteropolymer |
| C. | homopolymer |
| D. | dimer |
| Answer» D. dimer | |
| 5. |
Which of these structures do not contain cellulose as its major constituent? |
| A. | Cotton fibers |
| B. | Plant cell wall |
| C. | Jute |
| D. | Fungal cell wall |
| Answer» E. | |
| 6. |
Cotton fiber is made of cellulose. True or false? |
| A. | True |
| B. | False |
| Answer» B. False | |
| 7. |
What is the main component of the plant cell wall? |
| A. | Lipids |
| B. | Glycogen |
| C. | Cellulose |
| D. | Peptidoglycan |
| Answer» D. Peptidoglycan | |
| 8. |
The absence of which structure in cellulose does not allow it to hold iodine molecules? |
| A. | Branches |
| B. | Left non-reducing end |
| C. | Right reducing end |
| D. | Helix |
| Answer» E. | |
| 9. |
Which of these molecules can hold iodine molecules? |
| A. | Starch |
| B. | Cellulose |
| C. | Chitin |
| D. | Sucrose |
| Answer» B. Cellulose | |
| 10. |
What color is the starch-iodine complex? |
| A. | Yellow |
| B. | Brick red |
| C. | Blue |
| D. | Black |
| Answer» D. Black | |
| 11. |
In which part of the starch chain is iodine incorporated? |
| A. | Left non-reducing end |
| B. | Right reducing end |
| C. | Helix |
| D. | Branched portion |
| Answer» D. Branched portion | |
| 12. |
Which molecule can starch hold in its helix? |
| A. | Iodine |
| B. | DNA |
| C. | Amylopectin |
| D. | Cellulose |
| Answer» B. DNA | |
| 13. |
What is the shape of the secondary structure of starch? |
| A. | Spherical |
| B. | Linear |
| C. | Helical |
| D. | Branched |
| Answer» D. Branched | |
| 14. |
Which of these is a branched polysaccharide? |
| A. | Sucrose |
| B. | Cellulose |
| C. | Glycogen |
| D. | Chitin |
| Answer» D. Chitin | |