MCQOPTIONS
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MCQOPTIONS
This section includes 15 Mcqs, each offering curated multiple-choice questions to sharpen your Biology knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
What is meant by 1 calorie? |
| A. | Amount of heat energy required to raise the temperature of 1 kg of water |
| B. | Amount of heat energy required to raise the temperature of 1-tonne water |
| C. | Amount of heat energy required to raise the temperature of 1 mg water |
| D. | Amount of heat energy required to raise the temperature of 1 g water |
| Answer» E. | |
| 2. |
What is the ultimate form of energy? |
| A. | Heat |
| B. | Air |
| C. | Water |
| D. | Sand |
| Answer» B. Air | |
| 3. |
Gastric and intestinal secretions are stimulated by which of the following? |
| A. | Neural signals |
| B. | External stimulus |
| C. | Internal stimulus |
| D. | Excitation of cells |
| Answer» B. External stimulus | |
| 4. |
Where are the faeces stored till defaecation? |
| A. | Caecum |
| B. | Colon |
| C. | Anus |
| D. | Rectum |
| Answer» E. | |
| 5. |
Which valve prevents the backflow of faeces into the ileum? |
| A. | Ileo-caecal valve |
| B. | Pyloric sphincter |
| C. | Sphincter of Oddi |
| D. | Cardiac sphincter |
| Answer» B. Pyloric sphincter | |
| 6. |
No significant digestive activity occurs in the large intestine. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 7. |
Where does the breakdown of bio-macromolecules take place? |
| A. | Ileum |
| B. | Jejunum |
| C. | Duodenum |
| D. | Pancreas |
| Answer» D. Pancreas | |
| 8. |
Which of the following is not a product of the breakdown of nucleic acids? |
| A. | Nucleotide |
| B. | Nucleoside |
| C. | Glycerol |
| D. | Nitrogen base |
| Answer» D. Nitrogen base | |
| 9. |
In the small intestine, carbohydrates are broken down into which of the following? |
| A. | Monosaccharides |
| B. | Disaccharides |
| C. | Trisaccharides |
| D. | Polysaccharides |
| Answer» C. Trisaccharides | |
| 10. |
What are peptones? |
| A. | Partially hydrolysed proteins |
| B. | Completely hydrolysed proteins |
| C. | Incompletely ligase proteins |
| D. | Hydrolysed proteins |
| Answer» B. Completely hydrolysed proteins | |
| 11. |
Bile protects the intestinal mucosa from acid and alkaline medium. |
| A. | True |
| B. | False |
| Answer» C. | |
| 12. |
Which secretions constitute the intestinal juice? |
| A. | Bile juice |
| B. | Pancreatic juices |
| C. | Stomach secretions |
| D. | Secretions of brush border cells and goblet cells |
| Answer» E. | |
| 13. |
Which of the following is not present in bile? |
| A. | Phospholipids |
| B. | Bilirubin |
| C. | Biliverdin |
| D. | Nuclease |
| Answer» E. | |
| 14. |
Which of the following enzymes activate trypsinogen? |
| A. | Chymotrypsin |
| B. | Enterokinase |
| C. | Lipase |
| D. | Bile |
| Answer» C. Lipase | |
| 15. |
Which of the following is an active enzyme in the pancreas? |
| A. | Trypsinogen |
| B. | Procarboxypeptidase |
| C. | Chymotrypsinogen |
| D. | Nucleases |
| Answer» E. | |