| 1. |
Which gland is not associated with human alimentary canal? |
| A. | salivary glands |
| B. | adrenal gland |
| C. | liver |
| D. | pancreas |
| Answer» B. adrenal gland | |
| 2. |
In humans, bile juice is secreted by |
| A. | pancreas |
| B. | small intestine |
| C. | esophagus |
| D. | liver |
| Answer» D. liver | |
| 3. |
An enzyme which can only act in acidic medium is |
| A. | pepsin |
| B. | trypsin |
| C. | rennin |
| D. | amylase |
| Answer» A. pepsin | |
| 4. |
The part of digestive system where no digestion occurs |
| A. | duodenum |
| B. | esophagus |
| C. | stomach |
| D. | mouth |
| Answer» B. esophagus | |
| 5. |
Which of the following animals has no need for a gall bladder? |
| A. | horse |
| B. | lion |
| C. | dog |
| D. | human |
| Answer» A. horse | |
| 6. |
About how much saliva does a person produce each day? |
| A. | 100 ml |
| B. | 250 ml |
| C. | 500 ml |
| D. | 1500 ml |
| Answer» D. 1500 ml | |
| 7. |
Saliva has the enzyme |
| A. | pepsin |
| B. | ptyalin |
| C. | trypsin |
| D. | rennin |
| Answer» B. ptyalin | |
| 8. |
Curdling of milk in the stomach is due to the action of |
| A. | pepsin |
| B. | rennin |
| C. | HCL |
| D. | rennin |
| Answer» B. rennin | |
| 9. |
Pepsinogen is secreted by |
| A. | gastric glands |
| B. | intestinal glands |
| C. | chief cells |
| D. | parietal cells |
| Answer» C. chief cells | |
| 10. |
Pancreas has |
| A. | only endocrine cells |
| B. | only one type of cell, the same functioning both in an exocrine and endocrine fashion |
| C. | two types of cells-exocrine and endocrine |
| D. | only exocrine cells |
| Answer» C. two types of cells-exocrine and endocrine | |
| 11. |
Largest gland in human body is |
| A. | liver |
| B. | pancreas |
| C. | pituitary |
| D. | thyroid |
| Answer» A. liver | |
| 12. |
Grana refers to |
| A. | glycolysis of glucose |
| B. | by-product of photosynthesis |
| C. | stacks of thylakoids |
| D. | stacks of quantasomes |
| Answer» C. stacks of thylakoids | |
| 13. |
A specific function of light energy in the process of photosynthesis is to |
| A. | activate chlorophyll |
| B. | split water |
| C. | synthesis glucose |
| D. | reduce CO2 |
| Answer» A. activate chlorophyll | |
| 14. |
ATP formation during photosynthesis is known as |
| A. | phosphorylation |
| B. | photophosphorylation |
| C. | oxidative phosphorylation |
| D. | substrate level phosphorylation |
| Answer» B. photophosphorylation | |
| 15. |
Dark reaction in photosynthesis is called so because |
| A. | it does not require light energy |
| B. | cannot occur during daytime |
| C. | occurs more rapidly at night |
| D. | it can also occur in darkness |
| Answer» A. it does not require light energy | |
| 16. |
Which of the following is connected with transport of water in plants? |
| A. | phloem |
| B. | xylem |
| C. | epidermis |
| D. | cambium |
| Answer» B. xylem | |
| 17. |
The ultimate cause for movement of water against gravity in a tree is |
| A. | osmosis |
| B. | imbibitions |
| C. | transpiration |
| D. | photosynthesis |
| Answer» C. transpiration | |
| 18. |
Which of the following is not an example of a selectively permeable membrane? |
| A. | plasma lemma |
| B. | cell Wall |
| C. | mitochondrial membrane |
| D. | chloroplast membrane |
| Answer» B. cell Wall | |
| 19. |
Which of the following is responsible for guttation? |
| A. | root pressure |
| B. | transpiration |
| C. | photosynthesis |
| D. | osmosis |
| Answer» A. root pressure | |
| 20. |
Phenyl mercuric acetate |
| A. | reduces transpiration rate |
| B. | reduces photosynthesis |
| C. | kills the plant |
| D. | reduce respiration |
| Answer» A. reduces transpiration rate | |
| 21. |
Which of the following has no blood but respires? |
| A. | earthworm |
| B. | hydra |
| C. | cockroach |
| D. | fish |
| Answer» A. earthworm | |
| 22. |
Which type of respiratory organs are present in spiders and scorpions? |
| A. | book lungs |
| B. | gill books |
| C. | gills |
| D. | lungs |
| Answer» A. book lungs | |
| 23. |
At high altitude, RBCs of human blood will |
| A. | increase in number |
| B. | decrease in number |
| C. | decrease in size |
| D. | increase in size |
| Answer» A. increase in number | |
| 24. |
Vocal cords occur in |
| A. | pharynx |
| B. | glottis |
| C. | bronchial tube |
| D. | larynx |
| Answer» D. larynx | |
| 25. |
Which one of the following structures closes the respiratory passage during ingestion of food? |
| A. | larynx |
| B. | epiglottis |
| C. | hard palate |
| D. | soft palate |
| Answer» B. epiglottis | |
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