MCQOPTIONS
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MCQOPTIONS
This section includes 1075 Mcqs, each offering curated multiple-choice questions to sharpen your Biology knowledge and support exam preparation. Choose a topic below to get started.
| 451. |
In onion the edible part is |
| A. | Leaf |
| B. | Root |
| C. | Stem |
| D. | Flower |
| Answer» B. Root | |
| 452. |
Of the total number of genes inherited by a child |
| A. | more are from the father |
| B. | more are from the mother |
| C. | there are an equal number from each parent |
| D. | there is never a constant number from the parents |
| Answer» D. there is never a constant number from the parents | |
| 453. |
Transport of oxygen by blood takes place with the help of |
| A. | Erythrocytes |
| B. | Thrombocytes |
| C. | Lymphocytes |
| D. | Leucocytes |
| Answer» B. Thrombocytes | |
| 454. |
Genes are not found in pairs |
| A. | in body cells |
| B. | in ovary after fertilization |
| C. | in gametes |
| D. | in zygotes |
| Answer» D. in zygotes | |
| 455. |
The red blood cells are produced by the |
| A. | Liver |
| B. | Hormones |
| C. | Bone-marrow |
| D. | Heart |
| Answer» D. Heart | |
| 456. |
Which one of the following is used as a food preservative ? |
| A. | Sodium benzoate |
| B. | Sodium thiosulphate |
| C. | Sodium hydroxide |
| D. | Sodium bicarbonate |
| Answer» B. Sodium thiosulphate | |
| 457. |
The Red Data Book is the documentation of endangered rare species of: |
| A. | Flora |
| B. | Fauna |
| C. | Other living organisms |
| D. | All of these are correct |
| Answer» E. | |
| 458. |
Who proposed the adage Survival of the fittest ? |
| A. | Darwin |
| B. | William |
| C. | Huxley |
| D. | Lamarck |
| Answer» B. William | |
| 459. |
Metal present in blood is |
| A. | Calcium |
| B. | Zinc |
| C. | Sodium |
| D. | Iron |
| Answer» E. | |
| 460. |
Hypoglycemia refers to |
| A. | high salt concentration in blood |
| B. | high blood sugar level |
| C. | high blood pressure |
| D. | low sugar level in blood |
| Answer» E. | |
| 461. |
The form of carbohydrate which is synthesised in plants is |
| A. | Starch |
| B. | Glucose |
| C. | Fructose |
| D. | Cellulose |
| Answer» C. Fructose | |
| 462. |
Stem cells which are capable of developing into other types of cells come from the |
| A. | roots |
| B. | stem |
| C. | embryo |
| D. | flower |
| Answer» D. flower | |
| 463. |
In digestion, proteins are converted into |
| A. | Fatty acids |
| B. | Glucose |
| C. | Amino acids |
| D. | Maltose |
| Answer» D. Maltose | |
| 464. |
In human body, cartilage is found in |
| A. | tognue |
| B. | nose |
| C. | chin |
| D. | nail |
| Answer» C. chin | |
| 465. |
When nitrogenous waste accumulates in the blood which organ is not functioning ? |
| A. | Liver |
| B. | Lungs |
| C. | Kidneys |
| D. | Heart |
| Answer» D. Heart | |
| 466. |
Which one of the following is a hereditary disease ? |
| A. | Haemophilia |
| B. | Myopia |
| C. | Anaemia |
| D. | Leukemia |
| Answer» B. Myopia | |
| 467. |
Which of the following is a biodegradable waste ? |
| A. | Wool |
| B. | Polythene bags |
| C. | Plastics |
| D. | Nylon |
| Answer» B. Polythene bags | |
| 468. |
Honey contains mainly |
| A. | Proteins |
| B. | Carbohydrates |
| C. | Fat |
| D. | Vitamin |
| Answer» C. Fat | |
| 469. |
Ginger is a modified |
| A. | roof |
| B. | leaf |
| C. | tendril |
| D. | stem |
| Answer» E. | |
| 470. |
The part of the flower that can carry out photosynthesis is |
| A. | Androecium |
| B. | Gynoecium |
| C. | Calyx |
| D. | Corolla |
| Answer» D. Corolla | |
| 471. |
The reagent used to test the presence of starch in leaves is |
| A. | Fehling s solution |
| B. | Iodine solution |
| C. | Million s reagent |
| D. | Benedict s solution |
| Answer» C. Million s reagent | |
| 472. |
In onion food is stored in |
| A. | aerial stem |
| B. | root |
| C. | scale leaves |
| D. | bud |
| Answer» D. bud | |
| 473. |
The blood vessel carrying blood from the lungs to the heart is |
| A. | Hepatic artery |
| B. | Pulmonary artery |
| C. | Pulmonary vein |
| D. | Renal artery |
| Answer» D. Renal artery | |
| 474. |
Chicken pox is caused by |
| A. | Protozoa |
| B. | Bacteria |
| C. | Virus |
| D. | Fungus |
| Answer» D. Fungus | |
| 475. |
An adult human normally has |
| A. | 6 molar teeth |
| B. | 8 molar teeth |
| C. | 10 molar teeth |
| D. | 12 molar teeth |
| Answer» E. | |
| 476. |
A disease caused by fungus is |
| A. | Round worm |
| B. | Ringworm |
| C. | Tapeworm |
| D. | Filaria |
| Answer» C. Tapeworm | |
| 477. |
The importance of perspiration is to |
| A. | Eliminate body odours |
| B. | Improve the general health |
| C. | Open the pores in the skin |
| D. | Regulate body temperature |
| Answer» E. | |
| 478. |
Bacteriophage was discovered by |
| A. | Felix d Herelle and Frederick Twort |
| B. | Kluyver and Niel |
| C. | Paul Ehrlich |
| D. | Burrill and Smith |
| Answer» B. Kluyver and Niel | |
| 479. |
Rabies is caused by |
| A. | bacteria |
| B. | virus |
| C. | fungus |
| D. | algae |
| Answer» C. fungus | |
| 480. |
Protein is considered as a |
| A. | Body builder |
| B. | Energy producer |
| C. | Regulator |
| D. | Bulk increaser |
| Answer» B. Energy producer | |
| 481. |
How many times does the heart beat approximately in a minute in humans? |
| A. | 25 times |
| B. | 30 times |
| C. | 72 times |
| D. | 96 times |
| Answer» D. 96 times | |
| 482. |
Food for the developing foetus is supplied by the |
| A. | Uterus |
| B. | Placenta |
| C. | Ovary |
| D. | Allantosis |
| Answer» C. Ovary | |
| 483. |
Which bacterial strain developed from natural isolates by genetic manipulations can be used for treating oil spills ? |
| A. | Pseudomonas |
| B. | Agrobacterium |
| C. | Clostridium |
| D. | Nitrosomonas |
| Answer» E. | |
| 484. |
White Revolution is related to |
| A. | Wheat production |
| B. | |
| C. | Milk production |
| D. | Flood control |
| E. | Fish production |
| Answer» C. Milk production | |
| 485. |
Cellulose is the chief constituent of |
| A. | cell wall |
| B. | |
| C. | cell membrane |
| D. | secondary wall of xylem |
| E. | body wall of insects |
| Answer» B. | |
| 486. |
Which of the following provides energy for photosynthesis? |
| A. | Water |
| B. | Sunlight |
| C. | Chlorophyll |
| D. | Carbon dioxide |
| Answer» C. Chlorophyll | |
| 487. |
Butter is |
| A. | fat dispersed in milk |
| B. | water dispersed in fat |
| C. | water dispersed in oil |
| D. | fat dispersed in water |
| Answer» C. water dispersed in oil | |
| 488. |
The structure in cells which contains light absorbing pigment is |
| A. | Endoplasmic reticulum |
| B. | Nucleus |
| C. | Chloroplast |
| D. | Chromoplast |
| Answer» D. Chromoplast | |
| 489. |
Which of the following is a coldblooded animal ? |
| A. | Pigeon |
| B. | Tortoise |
| C. | Fox |
| D. | Goat |
| Answer» C. Fox | |
| 490. |
Entamoeba histolytica is a parasite found in man s |
| A. | liver |
| B. | intestines |
| C. | lungs |
| D. | kidneys |
| Answer» C. lungs | |
| 491. |
Hepatitis is a |
| A. | heart disease |
| B. | lung disease |
| C. | liver disease |
| D. | kidney disease |
| Answer» D. kidney disease | |
| 492. |
The membrane covering the lungs is a |
| A. | pleura |
| B. | pericardium |
| C. | peritoneum |
| D. | mesothelium |
| Answer» B. pericardium | |
| 493. |
The enzymes are basically |
| A. | carbohydrates |
| B. | lipids |
| C. | proteins |
| D. | amino acids |
| Answer» D. amino acids | |
| 494. |
Metabolism is referred to as |
| A. | synthesis of biomolecules |
| B. | breaking-down of biomolecules |
| C. | synthesis and breaking down of biomolecules |
| D. | recycling of biomolecules |
| Answer» D. recycling of biomolecules | |
| 495. |
The protein present in the finger nail is |
| A. | Actin |
| B. | Myosin |
| C. | Globin |
| D. | Keratin |
| Answer» E. | |
| 496. |
Which one of these is a communicable disease? |
| A. | Diabetes |
| B. | Diphtheria |
| C. | Arthritis |
| D. | Cancer |
| Answer» C. Arthritis | |
| 497. |
EEG is a technique to record the activity of |
| A. | heart |
| B. | lungs |
| C. | brain |
| D. | muscles |
| Answer» D. muscles | |
| 498. |
The average heartbeat rate per minute in a normal person is |
| A. | 82 |
| B. | 92 |
| C. | 72 |
| D. | 98 |
| Answer» D. 98 | |
| 499. |
Which of the following groups of organisms digest their food before it actually enters the organism? |
| A. | Bacteria and Protozoa |
| B. | |
| C. | Bacteria and Fungi |
| D. | Fungi and Protozoa |
| E. | Mucor and Rhizopus |
| Answer» C. Bacteria and Fungi | |
| 500. |
Which enzyme converts proteins? |
| A. | Pepsin |
| B. | Trypsin |
| C. | Erepsin |
| D. | Enterokinase |
| Answer» C. Erepsin | |