MCQOPTIONS
Saved Bookmarks
MCQOPTIONS
This section includes 1844 Mcqs, each offering curated multiple-choice questions to sharpen your Grade10 knowledge and support exam preparation. Choose a topic below to get started.
| 51. |
In 1978 scientists prepared human insulin by inserting the gene in |
| A. | bacteria |
| B. | virus |
| C. | fungi |
| D. | algae |
| Answer» B. virus | |
| 52. |
The lactic acid (C3H6O3) fermentation is used in the production of |
| A. | malted drinks |
| B. | beer production |
| C. | brown bread |
| D. | many types of cheese |
| Answer» E. | |
| 53. |
Which of the following microorganisms is used for the production of Ethanol |
| A. | aspergillus |
| B. | saccharomyces |
| C. | bacillus |
| D. | none of above |
| Answer» C. bacillus | |
| 54. |
During alcoholic fermentation, the acetaldehyde is reduced to |
| A. | methanol |
| B. | ethanol |
| C. | lactose |
| D. | ascorbic acid |
| Answer» C. lactose | |
| 55. |
The chemicals used in the endocrine gland system for communication with its effectors are classified as |
| A. | motor fluid |
| B. | regulatory fluid |
| C. | hormones |
| D. | sensory fluid |
| Answer» D. sensory fluid | |
| 56. |
Which of the following have many dendrites but only one axon? |
| A. | motor neurons |
| B. | inter neurons |
| C. | sensory neurons |
| D. | ganglia |
| Answer» B. inter neurons | |
| 57. |
The hormone which helps in increasing the water reabsorption from the nephrons is called |
| A. | adrenaline |
| B. | parathormone |
| C. | oxytocin |
| D. | vasopressin |
| Answer» E. | |
| 58. |
All spinal nerves are |
| A. | sensory nerves |
| B. | motor nerves |
| C. | mixed nerves |
| D. | all of above |
| Answer» D. all of above | |
| 59. |
The axons of all the sensory neurons are classified as |
| A. | mixed nerves |
| B. | sensory nerves |
| C. | motor nerves |
| D. | rotator nerves |
| Answer» C. motor nerves | |
| 60. |
The joint between skull bone is an example of |
| A. | ball and socket joint |
| B. | hinge joint |
| C. | immoveable joint |
| D. | slightly moveable joint |
| Answer» D. slightly moveable joint | |
| 61. |
The movement of flexor muscle is classified as |
| A. | flexion |
| B. | extension |
| C. | contraction |
| D. | relaxation |
| Answer» B. extension | |
| 62. |
The movement in which a muscle contract and bends the joint is called |
| A. | flexion |
| B. | bending |
| C. | extension |
| D. | contraction |
| Answer» B. bending | |
| 63. |
The fluid spaces in which chondrocytes lives is classified as |
| A. | collagen fluid |
| B. | tendons |
| C. | lacuna |
| D. | ligaments |
| Answer» D. ligaments | |
| 64. |
How many bones a young adult have? |
| A. | 206 |
| B. | 200 |
| C. | 100 |
| D. | 50 |
| Answer» B. 200 | |
| 65. |
National AIDS Control Program (NACP) started working through media and TV in |
| A. | 2004 |
| B. | 2003 |
| C. | 2006 |
| D. | 2005 |
| Answer» E. | |
| 66. |
Oogenesis is the process of |
| A. | egg releasing |
| B. | egg elimination |
| C. | egg production |
| D. | egg division |
| Answer» D. egg division | |
| 67. |
The number of spermatids produced from primary spermatocytes is |
| A. | three |
| B. | two |
| C. | one |
| D. | four |
| Answer» E. | |
| 68. |
Considering the whorls of plants, the androecium is classified as |
| A. | forth whorl |
| B. | third whorl |
| C. | second whorl |
| D. | first whorl |
| Answer» C. second whorl | |
| 69. |
Haploid microspores are produced within |
| A. | stamens |
| B. | carpels |
| C. | filament |
| D. | pollen sac |
| Answer» E. | |
| 70. |
The organic evolution mechanism was proposed by |
| A. | Nikola tesla |
| B. | Marie curie |
| C. | Gregor Mendel |
| D. | Charles Darwin |
| Answer» E. | |
| 71. |
If a true-breeding tall plant was crossed with true-breeding short the result was |
| A. | all short |
| B. | all tall |
| C. | half tall |
| D. | half short |
| Answer» C. half tall | |
| 72. |
The Persian scientist who expressed the term of "artificial selection" was |
| A. | Abu Rehyan Beruni |
| B. | Ibn ul Haithem |
| C. | Avi Cena |
| D. | Al-Khwarizmi |
| Answer» B. Ibn ul Haithem | |
| 73. |
Mendel crossed a true-breeding round seeded plant with |
| A. | oval seeded plant |
| B. | circular seeded plant |
| C. | wrinkled seeded plant |
| D. | elongated seeded plant |
| Answer» D. elongated seeded plant | |
| 74. |
Nitrogenous base adenine of one nucleotide forms pair with |
| A. | thymine |
| B. | cytosine |
| C. | guanine |
| D. | adenine |
| Answer» B. cytosine | |
| 75. |
A fatty layer secreted by Schwann cells is |
| A. | fatty cover |
| B. | fatty sheath |
| C. | myelin sheath |
| D. | oily sheath |
| Answer» D. oily sheath | |
| 76. |
The hormones secreted by islets of Langerhans are |
| A. | estrogen and progesterone |
| B. | calcitonin and oxytocin |
| C. | insulin and glucagon |
| D. | vasopressin and oxytocin |
| Answer» D. vasopressin and oxytocin | |
| 77. |
In positive feedback, the rate of a process |
| A. | increases |
| B. | remains constant |
| C. | changes |
| D. | decreases |
| Answer» B. remains constant | |
| 78. |
A specific messenger molecule synthesized by an endocrine gland is |
| A. | enzyme |
| B. | hormone |
| C. | chemical |
| D. | activator |
| Answer» C. chemical | |
| 79. |
The major part of the pancreas is |
| A. | ducted |
| B. | fluid filled |
| C. | ductless |
| D. | non fluid filled |
| Answer» B. fluid filled | |
| 80. |
The enzymes of bodywork best at a temperature called |
| A. | best temperature |
| B. | fixed temperature |
| C. | good temperature |
| D. | optimum temperature |
| Answer» E. | |
| 81. |
Urine is a filtrate present in |
| A. | kidney |
| B. | gall bladder |
| C. | renal tubule |
| D. | loop of Henle |
| Answer» D. loop of Henle | |
| 82. |
The ascending limb of the loop of Henle allows the reabsorption of |
| A. | salts |
| B. | minerals |
| C. | urea |
| D. | uric acid |
| Answer» B. minerals | |
| 83. |
The leading cause of kidney failure are diabetes and |
| A. | weight loss |
| B. | weight gain |
| C. | hypertension |
| D. | cancer |
| Answer» D. cancer | |
| 84. |
The protein content which is extracted from mixed or pure cultures of yeasts, bacteria, algae, and fungi is called |
| A. | triple cell protein |
| B. | single cell protein |
| C. | double cell protein |
| D. | tetra cell protein |
| Answer» C. double cell protein | |
| 85. |
The protein content called novel is produced by using |
| A. | bacteria |
| B. | virus |
| C. | fungi |
| D. | micro-organisms |
| Answer» E. | |
| 86. |
Use of living organisms to serve humans is |
| A. | biotechnology |
| B. | social biology |
| C. | human biology |
| D. | service biology |
| Answer» B. social biology | |
| 87. |
In 1857 it was proved that all fermentations are the results of microbial activity by |
| A. | Pasteur |
| B. | Lmark |
| C. | Darwin |
| D. | Mendel |
| Answer» B. Lmark | |
| 88. |
The human genome project was published in |
| A. | 1999 |
| B. | 2008 |
| C. | 2005 |
| D. | 2002 |
| Answer» E. | |
| 89. |
The length of the windpipe is |
| A. | 10cm |
| B. | 15cm |
| C. | 18cm |
| D. | 12cm |
| Answer» E. | |
| 90. |
During inspiration, the area of the thoracic cavity will |
| A. | increase |
| B. | decrease |
| C. | contract |
| D. | damage |
| Answer» B. decrease | |
| 91. |
The narrow opening present at the end of the pharynx which directs the way to the larynx is classified as |
| A. | glottis |
| B. | nostrils |
| C. | trachea |
| D. | bronchi |
| Answer» B. nostrils | |
| 92. |
The inflammation of bronchi or bronchioles is called |
| A. | emphysema |
| B. | bronchitis |
| C. | asthma |
| D. | lung cancer |
| Answer» C. asthma | |
| 93. |
High fever, cold, and cough with sputum production are symptoms of |
| A. | emphysema |
| B. | asthma |
| C. | pneumonia |
| D. | bronchitis |
| Answer» B. asthma | |
| 94. |
The example of a drug which is obtained from animals is |
| A. | terramycin |
| B. | fish liver oils |
| C. | streptomycin |
| D. | morphine |
| Answer» C. streptomycin | |
| 95. |
Which of the following causes changes in perception, thought, emotion, and consciousness? |
| A. | narcotics |
| B. | sedatives |
| C. | hallucinogens |
| D. | anxiety drugs |
| Answer» D. anxiety drugs | |
| 96. |
The name of the flower which is used to make the heart stimulating medicine (digitalis) is |
| A. | foxglove |
| B. | buttercup |
| C. | lavender |
| D. | daffodils |
| Answer» B. buttercup | |
| 97. |
Edward Jenner infected a young boy with cowpox in |
| A. | 1790 |
| B. | 1796 |
| C. | 1798 |
| D. | 1795 |
| Answer» C. 1798 | |
| 98. |
Which of the following drugs is used to stimulate the heart? |
| A. | aspirin |
| B. | morphine |
| C. | streptomycin |
| D. | digitalis |
| Answer» E. | |
| 99. |
Considering the Earth's ecosystem, the consumers are classified as |
| A. | autotrophs |
| B. | heterotrophs |
| C. | tertiary autotrophs |
| D. | secondary autotrophs |
| Answer» C. tertiary autotrophs | |
| 100. |
The process in which inorganic nutrients are enriched with water is called |
| A. | industrialization |
| B. | pollution |
| C. | eutrophication |
| D. | contamination |
| Answer» D. contamination | |