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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.
| 751. |
The thin membrane that separates the external ear from the middle ear is called |
| A. | tympanum |
| B. | auditory canal |
| C. | malleus |
| D. | incus |
| Answer» B. auditory canal | |
| 752. |
The organs, that receive information from receptors are |
| A. | receptor |
| B. | effector |
| C. | stimuli |
| D. | coordinators |
| Answer» E. | |
| 753. |
For insulin administration, insulin was initially extracted from |
| A. | animals |
| B. | bacteria |
| C. | humans |
| D. | insects |
| Answer» B. bacteria | |
| 754. |
Optic disc a point for entry of optic nerves is present on |
| A. | rods |
| B. | retina |
| C. | optic disc |
| D. | blind spot |
| Answer» C. optic disc | |
| 755. |
In normal urine composition, the sodium ions content is |
| A. | 2.27g/l |
| B. | 1.17g/l |
| C. | 3.2g/l |
| D. | 3.6g/l |
| Answer» C. 3.2g/l | |
| 756. |
In each human kidney, the number of nephrons is over |
| A. | three million |
| B. | one million |
| C. | two million |
| D. | half million |
| Answer» C. two million | |
| 757. |
The capillaries of the glomerulus join to form |
| A. | afferent arteriole |
| B. | renal artery |
| C. | efferent arteriole |
| D. | bowman's capsule |
| Answer» D. bowman's capsule | |
| 758. |
The coniferous trees remove waste materials through |
| A. | resins |
| B. | gums |
| C. | latex |
| D. | mucilage |
| Answer» B. gums | |
| 759. |
Considering the normal urine composition, the chloride ions content is |
| A. | 4.2g/l |
| B. | 1.87g/l |
| C. | 2.5g/l |
| D. | 3.6g/l |
| Answer» C. 2.5g/l | |
| 760. |
The major function of kidneys is |
| A. | urine formation |
| B. | oxidizing the blood |
| C. | ionizing the blood |
| D. | dialysis of blood |
| Answer» B. oxidizing the blood | |
| 761. |
In the urine formation second step selective re-absorption, the ascending limb of the loop is responsible for reabsorption of |
| A. | white blood cells |
| B. | red blood cells |
| C. | water |
| D. | salts |
| Answer» E. | |
| 762. |
The water content in the blood is regulated and maintained by |
| A. | urinary bladder |
| B. | pancreas |
| C. | kidneys |
| D. | lungs |
| Answer» D. lungs | |
| 763. |
Considering the longitudinal section of kidneys, the two regions include |
| A. | renal cortex only |
| B. | renal medulla only |
| C. | renal vein |
| D. | renal cortex and medulla |
| Answer» E. | |
| 764. |
The last part of Renal tubule is |
| A. | loop of Henle |
| B. | renal corpuscle |
| C. | proximal convoluted tubule |
| D. | distal convoluted tubule |
| Answer» E. | |
| 765. |
Kidneys are protected by last |
| A. | 2 ribs |
| B. | 4 ribs |
| C. | 6 ribs |
| D. | 8 ribs |
| Answer» B. 4 ribs | |
| 766. |
The process of water removal in the form of vapors from the surface of plants is classified as |
| A. | excretion |
| B. | transpiration |
| C. | transportation |
| D. | guttation |
| Answer» C. transportation | |
| 767. |
The inner, pale red part of the kidney is called |
| A. | renal cortex |
| B. | renal medulla |
| C. | renal pelvis |
| D. | renal pyramid |
| Answer» C. renal pelvis | |
| 768. |
In the urine formation second step selective re-absorption, the descending limb of the loop is responsible for reabsorption of |
| A. | water |
| B. | salts |
| C. | white cells |
| D. | red blood cells |
| Answer» B. salts | |
| 769. |
Blood enters the kidney through |
| A. | glomerulus |
| B. | renal vein |
| C. | renal artery |
| D. | afferent arteriole |
| Answer» D. afferent arteriole | |
| 770. |
The outer, dark red part of the kidney is called |
| A. | renal cortex |
| B. | renal medulla |
| C. | renal pelvis |
| D. | renal pyramid |
| Answer» B. renal medulla | |
| 771. |
In human kidneys, the functional unit of the kidneys is also classified as |
| A. | nephron |
| B. | neuron |
| C. | neutron |
| D. | all of above |
| Answer» B. neuron | |
| 772. |
In plants, the extra water is removed with the help of |
| A. | transpiration |
| B. | respiration |
| C. | osmosis |
| D. | diffusion |
| Answer» B. respiration | |
| 773. |
A depression near the center of the concave area of the kidney is called |
| A. | nephron |
| B. | renal pelvis |
| C. | renal medulla |
| D. | hilus |
| Answer» E. | |
| 774. |
The hormone necessary for the milk breast ejection is known as |
| A. | parathormone |
| B. | oxytocin |
| C. | vasopressin |
| D. | adrenaline |
| Answer» C. vasopressin | |
| 775. |
The deficiency of insulin causes the disease |
| A. | blood pressure |
| B. | paralysis |
| C. | diabetes mellitus |
| D. | epilepsy |
| Answer» D. epilepsy | |
| 776. |
The function of the somatotropin hormone released by the pituitary gland is |
| A. | growth of the body |
| B. | skin hydration |
| C. | eyes hydration |
| D. | reabsorption of water |
| Answer» B. skin hydration | |
| 777. |
In human ear, the bone attached to the eardrum is classified as |
| A. | cochlea ligament |
| B. | stapes ligament |
| C. | incus ligament |
| D. | malleus |
| Answer» E. | |
| 778. |
Degenerating brain cells can be repaired by using |
| A. | embryonic stem cells |
| B. | Schwann cells |
| C. | neurons |
| D. | ganglia |
| Answer» B. Schwann cells | |
| 779. |
In body fluids, the fewer water causes concentrated urine also known as |
| A. | hyper-hilus |
| B. | hypotonic |
| C. | hypertonic |
| D. | hilus |
| Answer» D. hilus | |
| 780. |
In humans, the urine is produced when |
| A. | urethra filters blood |
| B. | kidneys filter blood |
| C. | lungs inhale oxygen |
| D. | lungs exhale co2 |
| Answer» C. lungs inhale oxygen | |
| 781. |
During day time, the by-product of plants is |
| A. | oxygen |
| B. | carbon dioxide |
| C. | nitrogen |
| D. | hydrogen |
| Answer» B. carbon dioxide | |
| 782. |
Considering the anatomy of human kidneys, the duct which is formed of many collecting ducts and ultimately drained into the renal pelvis is called |
| A. | proximal duct |
| B. | renal duct |
| C. | papillary duct |
| D. | collecting duct |
| Answer» D. collecting duct | |
| 783. |
In renal corpuscle of the human kidneys, the cup-shaped structure in which glomerulus is enclosed is known as |
| A. | bowman's capsule |
| B. | glomerulus |
| C. | distal convoluted tubule |
| D. | proximal convoluted tubule |
| Answer» B. glomerulus | |
| 784. |
A group of organisms of the same species inhabiting a specific region at a certain time is called |
| A. | population |
| B. | ecosystem |
| C. | biosphere |
| D. | community |
| Answer» B. ecosystem | |
| 785. |
A pond, a lake, and forest are examples of |
| A. | natural ecosystems |
| B. | biosphere |
| C. | artificial ecosystems |
| D. | community |
| Answer» B. biosphere | |
| 786. |
The plants that are carnivorous live as predators include |
| A. | venus fly trap |
| B. | sundew |
| C. | pitcher plant |
| D. | sunflower |
| Answer» C. pitcher plant | |
| 787. |
The nitrogen fixer bacteria that lives in the root nodules of plants is called |
| A. | rhizobium |
| B. | euglena |
| C. | amoeba |
| D. | paramecium |
| Answer» B. euglena | |
| 788. |
The example of mutualism is |
| A. | mosquitoes and protozoan |
| B. | rhizobium and protozoan |
| C. | protozoan and termites |
| D. | rhizobium and termites |
| Answer» D. rhizobium and termites | |
| 789. |
In humans, the main organs which work in homeostasis include |
| A. | kidney filters |
| B. | lungs |
| C. | skin |
| D. | all of above |
| Answer» E. | |
| 790. |
The kidneys in humans are placed against the back side wall of |
| A. | renal cavity |
| B. | abdominal cavity |
| C. | vertebral cavity |
| D. | glomerulus cavity |
| Answer» C. vertebral cavity | |
| 791. |
The causes of kidney failures are |
| A. | diabetes only |
| B. | hypertension only |
| C. | weight gain |
| D. | diabetes and hypertension |
| Answer» E. | |
| 792. |
In humans, the urinary system is also known as |
| A. | excretory system |
| B. | mineral absorption system |
| C. | salt absorption system |
| D. | blood oxygenation system |
| Answer» B. mineral absorption system | |
| 793. |
Considering the human kidneys, the Bowman's capsule and Glomerulus are two parts of |
| A. | renal proximal |
| B. | renal tubule |
| C. | renal corpuscle |
| D. | distal tubule |
| Answer» D. distal tubule | |
| 794. |
The limit of the normal pH of the blood is |
| A. | 7.25 to 8.15 |
| B. | 7.35 to 7.45 |
| C. | 7.45 to 8.45 |
| D. | 6.35 to 7.35 |
| Answer» C. 7.45 to 8.45 | |
| 795. |
Considering the concave shape of kidneys, the concave side of kidneys faces |
| A. | renal cavity |
| B. | abdominal cavity |
| C. | buccal cavity |
| D. | vertebral column |
| Answer» E. | |
| 796. |
Considering the normal urine composition, the urea content is |
| A. | 7.7g/l |
| B. | 8.7g/l |
| C. | 9.3g/l |
| D. | 10.2g/l |
| Answer» D. 10.2g/l | |
| 797. |
In plants, the carbon dioxide CO2 is removed from the tissue cells at the night time with the help of a process called |
| A. | diffusion |
| B. | osmosis |
| C. | fission |
| D. | binary fission |
| Answer» B. osmosis | |
| 798. |
A cup-shaped structure that encloses glomerulus is called |
| A. | loop of Henle |
| B. | papillary ducts |
| C. | bowman's capsule |
| D. | renal tubule |
| Answer» D. renal tubule | |
| 799. |
After the growing age, the excess amount of somatotropin causes disorder of growth of internal organs called |
| A. | vasopressin |
| B. | acromegaly |
| C. | dwarfism |
| D. | gigantism |
| Answer» C. dwarfism | |
| 800. |
Myopia can be rectified by using |
| A. | eye lens |
| B. | convex lens |
| C. | converging lens |
| D. | concave lens |
| Answer» E. | |