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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.
| 601. |
The total number of pea plants used in Mendel's experiment are |
| A. | 32,000 plants |
| B. | 28,000 pea plants |
| C. | 30,000 plants |
| D. | 25,000 plants |
| Answer» C. 30,000 plants | |
| 602. |
Main support to our body mass is provided by |
| A. | skeleton |
| B. | vertebral column |
| C. | rib cage |
| D. | spinal cord |
| Answer» C. rib cage | |
| 603. |
The number of soft bones in the newborn is |
| A. | 200 |
| B. | 400 |
| C. | 300 |
| D. | 100 |
| Answer» D. 100 | |
| 604. |
The hyaline cartilage is present in the ends of the bones of |
| A. | nose, bronchial tubes and trachea |
| B. | pinna and epiglottis |
| C. | vertebral discs |
| D. | knees and ankles |
| Answer» B. pinna and epiglottis | |
| 605. |
In an antagonistic pair, the muscles work |
| A. | parallel |
| B. | opposite |
| C. | equal |
| D. | perpendicular |
| Answer» C. equal | |
| 606. |
The types of joints are classified based on |
| A. | number of cartilages |
| B. | degree of movement |
| C. | weight strength |
| D. | number of bones |
| Answer» C. weight strength | |
| 607. |
The process of maintaining a balance of internal conditions in the body is called |
| A. | homeostasis |
| B. | peristalsis |
| C. | excretion |
| D. | respiration |
| Answer» B. peristalsis | |
| 608. |
Considering disorders of the kidney, the causes of kidney stones are |
| A. | diet with vitamin c and d |
| B. | age |
| C. | less intake of water |
| D. | all of above |
| Answer» E. | |
| 609. |
Role in the maintenance of body temperature and removal of excess water and salts is performed by |
| A. | lungs |
| B. | kidney |
| C. | skin |
| D. | pancreas |
| Answer» D. pancreas | |
| 610. |
The plants that live on the water or are partially submerged in water are classified as |
| A. | hydrophytes |
| B. | xerophytes |
| C. | halophytes |
| D. | saprophytes |
| Answer» B. xerophytes | |
| 611. |
The common example of xerophytes is |
| A. | ladyfinger |
| B. | morning glory |
| C. | water lily |
| D. | cactus |
| Answer» E. | |
| 612. |
The time urine is released from the body, it is temporarily stored in |
| A. | urethra |
| B. | urethra |
| C. | urinary bladder |
| D. | gall bladder |
| Answer» D. gall bladder | |
| 613. |
The second U-shaped portion of the renal tubule of the kidney is called |
| A. | loop of bowman's capsule |
| B. | loop of glomerulus |
| C. | loop of Henle |
| D. | loop of proximal |
| Answer» D. loop of proximal | |
| 614. |
In humans, the urinary system is formed of |
| A. | urethra |
| B. | urinary bladder and urethra |
| C. | pair of kidneys |
| D. | all of above |
| Answer» E. | |
| 615. |
The outer protective layer of the skin without blood vessels is called |
| A. | dermis |
| B. | hypodermis |
| C. | epidermis |
| D. | papillary region |
| Answer» C. epidermis | |
| 616. |
The rubber plant removes waste material in the form of |
| A. | resins |
| B. | gums |
| C. | latex |
| D. | mucilage |
| Answer» D. mucilage | |
| 617. |
The product of photosynthesis is |
| A. | oxygen |
| B. | water |
| C. | salts |
| D. | carbon dioxide |
| Answer» B. water | |
| 618. |
Kidney filter excess water, salts, urea and |
| A. | acetic acid |
| B. | uric acid |
| C. | minerals |
| D. | ammonia |
| Answer» C. minerals | |
| 619. |
The first step of kidney functions is |
| A. | tubular secretion |
| B. | selective reabsorption |
| C. | pressure filtration |
| D. | glomerular filtrate |
| Answer» D. glomerular filtrate | |
| 620. |
About 90% of kidney stones can pass through the urinary system by drinking |
| A. | juices |
| B. | sugary dinks |
| C. | small quantities of water |
| D. | plenty of water |
| Answer» E. | |
| 621. |
The hemodialysis treatments are given in a week for |
| A. | one time |
| B. | two times |
| C. | three times |
| D. | four times |
| Answer» D. four times | |
| 622. |
The hormone that prepares our body to overcome emergencies is called |
| A. | adrenaline |
| B. | oxytocin |
| C. | vasopressin |
| D. | thyroxin |
| Answer» B. oxytocin | |
| 623. |
The nervous system which is composed of ganglia and nerves is classified as |
| A. | temporal nervous system |
| B. | frontal nervous system |
| C. | central nervous system |
| D. | peripheral nervous system |
| Answer» E. | |
| 624. |
For the clear vision of any object, the lens of eyes become |
| A. | more concave |
| B. | more convex |
| C. | less concave |
| D. | less convex |
| Answer» E. | |
| 625. |
In human eye the number of cones is |
| A. | 8 lakhs |
| B. | 7 lakhs |
| C. | 6 lakhs |
| D. | 5 lakhs |
| Answer» C. 6 lakhs | |
| 626. |
The nerve is a sum of several |
| A. | axons enclosed in lipid covering |
| B. | dendrites enclosed in lipid covering |
| C. | interneuron enclosed in fatty acids |
| D. | motor neurons enclosed in sheath |
| Answer» B. dendrites enclosed in lipid covering | |
| 627. |
The number of middle ear ossicles in each human ear is |
| A. | six |
| B. | five |
| C. | four |
| D. | three |
| Answer» E. | |
| 628. |
The muscle which bends the joint while its contracted is called |
| A. | antagonist muscle |
| B. | flexor muscle |
| C. | extensor muscle |
| D. | insertion muscle |
| Answer» C. extensor muscle | |
| 629. |
How many bones are present in feet? |
| A. | 54 |
| B. | 56 |
| C. | 52 |
| D. | 51 |
| Answer» B. 56 | |
| 630. |
Decreased lubricant production at joints causes |
| A. | osteoarthritis |
| B. | rheumatoid arthritis |
| C. | gout |
| D. | osteoporosis |
| Answer» B. rheumatoid arthritis | |
| 631. |
The end of the muscle which is attached to some immovable bone is called |
| A. | antagonist |
| B. | origin |
| C. | insertion |
| D. | extensor |
| Answer» C. insertion | |
| 632. |
Which of the following reduces irritability or excitement? |
| A. | vaccines |
| B. | sedatives |
| C. | antibiotics |
| D. | analgesics |
| Answer» C. antibiotics | |
| 633. |
The vaccine contains weakened or killed |
| A. | bacteria |
| B. | pathogens |
| C. | viruses |
| D. | fungi |
| Answer» C. viruses | |
| 634. |
Thiazide diuretics are medicines for lowering |
| A. | blood sugar |
| B. | blood glucose |
| C. | blood plasma |
| D. | blood pressure |
| Answer» E. | |
| 635. |
Which of the following comes from a cactus? |
| A. | mescaline |
| B. | psilocin |
| C. | marijuana |
| D. | opium |
| Answer» B. psilocin | |
| 636. |
Which of the following are also present in other medications that are not antibiotics? |
| A. | tetracycline's |
| B. | cephalosporin |
| C. | sulfonamides |
| D. | sedatives |
| Answer» D. sedatives | |
| 637. |
The outer, dark red portion of the kidney is |
| A. | renal medulla |
| B. | pelvis |
| C. | pyramids |
| D. | renal cortex |
| Answer» E. | |
| 638. |
The urethra is a tube that carries urine from the urinary bladder to |
| A. | outside the body |
| B. | ureter |
| C. | rectum |
| D. | anus |
| Answer» B. ureter | |
| 639. |
The functional unit of the kidney is |
| A. | glomerulus |
| B. | renal corpuscle |
| C. | nephron |
| D. | loop of Henle |
| Answer» D. loop of Henle | |
| 640. |
The inner layer containing blood vessels is |
| A. | ectodermis |
| B. | dermis |
| C. | endodermis |
| D. | hypodermis |
| Answer» C. endodermis | |
| 641. |
The angiosperms and gymnosperms are classified as |
| A. | seed plants |
| B. | corals |
| C. | ferns |
| D. | mosses |
| Answer» B. corals | |
| 642. |
The inner two whorls of the flower are classified as |
| A. | non-reproductive whorls |
| B. | reproductive whorls |
| C. | haploid whorls |
| D. | diploid whorls |
| Answer» C. haploid whorls | |
| 643. |
Onions are reproduced by |
| A. | bulbs |
| B. | corms |
| C. | rhizomes |
| D. | stem tubers |
| Answer» B. corms | |
| 644. |
The reproductive system of the male rabbit does not include |
| A. | placenta development |
| B. | pairs of testes |
| C. | ducts to transport sperms |
| D. | glands for secretion to sperm |
| Answer» B. pairs of testes | |
| 645. |
Seedless fruits are the result of |
| A. | parthenogenesis |
| B. | parthenocarpy |
| C. | cross pollination |
| D. | self pollination |
| Answer» C. cross pollination | |
| 646. |
Consumers that eat animal flesh, as well as plants and plant products, are called |
| A. | omnivores |
| B. | primary consumers |
| C. | secondary consumers |
| D. | top carnivores |
| Answer» B. primary consumers | |
| 647. |
Thunderstorms and lightning convert atmospheric nitrogen into |
| A. | nitrates |
| B. | nitrites |
| C. | nitric acid |
| D. | nitric oxide |
| Answer» B. nitrites | |
| 648. |
The Ascaris, Entamoeba and Plasmodium are considered as examples of |
| A. | endoparasite |
| B. | ectoparasite |
| C. | digestion parasites |
| D. | synthetic parasites |
| Answer» B. ectoparasite | |
| 649. |
The principal decomposers of the biosphere are |
| A. | amoeba |
| B. | virus |
| C. | fungi and bacteria |
| D. | algae |
| Answer» D. algae | |
| 650. |
The interaction between abiotic components and biotic community is classified as |
| A. | ecosystem |
| B. | population |
| C. | natural biosphere |
| D. | artificial biosphere |
| Answer» B. population | |