MCQOPTIONS
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MCQOPTIONS
This section includes 34 Mcqs, each offering curated multiple-choice questions to sharpen your Biology Mcqs knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Magnesium is present in which of the following? |
| A. | Cytochromes |
| B. | ATP |
| C. | Chlorophyll |
| D. | Haemoglobin |
| Answer» D. Haemoglobin | |
| 2. |
Carbohydrates, fats & proteins are essential for: |
| A. | Metabolic processes of an organism |
| B. | Providing energy |
| C. | Formation of sturctures |
| D. | All of these |
| Answer» E. | |
| 3. |
Puccinia is a parasitic: |
| A. | Plant |
| B. | Fungus |
| C. | Animal |
| D. | Algae |
| Answer» C. Animal | |
| 4. |
Deficiency of which of the following causes chlorosis? |
| A. | Nitrogen |
| B. | Magnesium |
| C. | Iron |
| D. | Both A and B |
| Answer» E. | |
| 5. |
Deficiency of K+ causes: |
| A. | Stunted growth & strong chlorosis |
| B. | No electron transport chains |
| C. | Premature death of leaves. |
| D. | Stunted growth of roots. |
| Answer» D. Stunted growth of roots. | |
| 6. |
Autotrophic organisms can exist in an exclusively ______ environment. |
| A. | Organic |
| B. | Inorganic |
| C. | Wet |
| D. | Terrestrial |
| Answer» C. Wet | |
| 7. |
Strong chlorosis is due to the deficiency of _____ in plants. |
| A. | Magnesium |
| B. | Nitrogen |
| C. | Potassium |
| D. | Phosphorus |
| Answer» C. Potassium | |
| 8. |
Stunted growth of roots is due to the deficiency of _____ in plants |
| A. | Potassium |
| B. | Magnesium |
| C. | Phosphorus |
| D. | Iron. |
| Answer» D. Iron. | |
| 9. |
Puccinia commonly destroys |
| A. | Corn |
| B. | Tomato |
| C. | Dodder |
| D. | Wheat |
| Answer» E. | |
| 10. |
Nodules on roots of leguminous plants have _____ bacteria |
| A. | Anaerobic |
| B. | Nitrogen fixing |
| C. | Nitrifying |
| D. | Ammonifying |
| Answer» C. Nitrifying | |
| 11. |
All of the insectivorous plants are true |
| A. | Heterotrophs |
| B. | Autotrophes |
| C. | Carnivores |
| D. | Saprotrophs |
| Answer» C. Carnivores | |
| 12. |
The leaf is bilobed with midrib between them. The plant is |
| A. | Saraccnia |
| B. | Dionaea |
| C. | Pitcher plant |
| D. | None of these |
| Answer» C. Pitcher plant | |
| 13. |
Of the following, which one has more variety of nutrition? |
| A. | Animals |
| B. | Bacteria |
| C. | Plants |
| D. | Fungi |
| Answer» B. Bacteria | |
| 14. |
Mastication is carried out by: |
| A. | Teeth |
| B. | Tongue |
| C. | Smooth muscles |
| D. | All of these |
| Answer» B. Tongue | |
| 15. |
Masses of dilated tortuous veins in the anorectal mucosa are known as |
| A. | Bulimia |
| B. | Ulcer |
| C. | Adipose tissue |
| D. | Hemorrhoids |
| Answer» E. | |
| 16. |
Pepsinogen is produced from |
| A. | Mucous cells |
| B. | Parietal cells |
| C. | Zymogen cells |
| D. | All of these |
| Answer» D. All of these | |
| 17. |
Dipeptides into amino acids are are converted through |
| A. | Amino peptidase |
| B. | Erypsin |
| C. | Pepsin |
| D. | Trypsin |
| Answer» C. Pepsin | |
| 18. |
Hydra is an example of _______ feeder |
| A. | Fluid |
| B. | Macrophagous |
| C. | Fluid |
| D. | All of these |
| Answer» C. Fluid | |
| 19. |
Certain types of whales are also ______ feeder. |
| A. | Fluid |
| B. | Macrophagous |
| C. | Filter |
| D. | None of these |
| Answer» D. None of these | |
| 20. |
Parasites capable of living independently of its host at times is called as _______ parasite. |
| A. | Obligate |
| B. | Strict |
| C. | Facultative |
| D. | Endoparasite |
| Answer» D. Endoparasite | |
| 21. |
In planaria, numerous small branches which end blindly are called as |
| A. | Digestive tract |
| B. | Intestinal caeca |
| C. | Hepatic caeca |
| D. | Both B & C |
| Answer» C. Hepatic caeca | |
| 22. |
Midgut in cockroach is a short narrow tube called |
| A. | Hepatic caeca |
| B. | Gizzard |
| C. | Stomach |
| D. | Rectum |
| Answer» D. Rectum | |
| 23. |
The partly digested food is stored in ____ in cockroach. |
| A. | Gizzard |
| B. | Crop |
| C. | Hepatic caeca |
| D. | Rectum |
| Answer» C. Hepatic caeca | |
| 24. |
Hunger contractions are _____ contractions |
| A. | Antiperistalsis |
| B. | Peristalsis |
| C. | Voluntary |
| D. | None of these |
| Answer» C. Voluntary | |
| 25. |
A painful burning sensation produced in the chest cavity usually associated with the back flush of acidic chyme into the esophagus is |
| A. | Pyrolysis |
| B. | Pyrosis |
| C. | Peristalsis |
| D. | Dyspepsia |
| Answer» C. Peristalsis | |
| 26. |
It is about 2.4 meter in length and comprising about two fifth of the small intestine |
| A. | Duodenum |
| B. | Jejunum |
| C. | Ileum |
| D. | Caecum |
| Answer» C. Ileum | |
| 27. |
Hepatic and Pancreatic secretions are also stimulated by a hormone produced by the intestinal mucosa. The hormone is |
| A. | Creatin |
| B. | Gastrin |
| C. | Secretin |
| D. | Pepsin |
| Answer» D. Pepsin | |
| 28. |
Anus is surrounded by _____ types of muscles |
| A. | 2 |
| B. | 3 |
| C. | 1 |
| D. | 4 |
| Answer» B. 3 | |
| 29. |
One of the commonest cause of food poisoning are the toxins produced by |
| A. | Azobacter |
| B. | Nitrosomonas |
| C. | Campylobacter |
| D. | Nitrobacter |
| Answer» D. Nitrobacter | |
| 30. |
Incomplete or imperfect digestion is known as |
| A. | Obesity |
| B. | Dyspepsia |
| C. | Anorexia nervous |
| D. | Bulimia nervosa |
| Answer» C. Anorexia nervous | |
| 31. |
The liquid that escapes during defrosting frozen meat contains _____ bacteria |
| A. | Campylobacter |
| B. | Nitrobacter |
| C. | Azobacter |
| D. | Salmonella |
| Answer» E. | |
| 32. |
Loss of appetite due to the fear of becoming obese is |
| A. | Anorexia nervosa |
| B. | Bulimia nervosa |
| C. | Piles |
| D. | Dyspepsia |
| Answer» B. Bulimia nervosa | |
| 33. |
Earthworm is an example of ______ feeder |
| A. | Detritus |
| B. | Fluid |
| C. | Macrophageus |
| D. | Filter |
| Answer» B. Fluid | |
| 34. |
Of the following, which one is missing in herbivores? |
| A. | Premolars |
| B. | Canines |
| C. | Incisors |
| D. | Molars. |
| Answer» C. Incisors | |