Human Organ System Class 8 Science MCQ Question and Answers. Important MCQ on Human Organ System 8th Standard Mathematics Subject.
Human Organ System Class 8 Science MCQ
I) The nervous system is network of:
a) Neurons b) spinal cord c) nerves d) lobes
Ans. nerves
ii) Fore brain is called:
a) Cerebellum bj) Cerebrum c) Medulla Oblongata d) Pons
Ans. cerebrum
iii) The central nervous system is composed of:
a) Cerebrum, Thalamus and Hypothalamus
b) Cerebrum, Pons and Medulla oblongata
¢) Brain, Spinal cord and nerves
d) Cerebellum, Brain and nerves
Ans. brain , spinal cord , nerves
iv) The main excretory organ is:
a) Kidney b) liver c) skin d) lungs
Ans. kidney
v) Replacement of malfunctioning organ by a healthy organ is called:
a) Transformation b) Transplantation c) Transpiration d) Translocation
Ans. transplantation
vi) Which of the following is not part of the hind brain ?
a)cerebellum b) pons c) cerebrum d) medulla oblongata
Ans. Cerebellum
vi) The occipital lobe helps to process
a) auditory information b) visual information c) language d) motor movements
Ans . Visual information
vii) Spinal cord helps to control functions which are not under the controlsuch as breathing, heartbeat, blinking, and
a)speaking b) movement c) blood pressure d) hearing
vii) Which of the following is not an excretory organ
a ) Liver b) kidney c) Lungs d) gall bladder
viii) it’s an organ shaped like a bean
a ) stomach b) kidneys c) heart d) lungs
ix) The yellow coloured fluid excreted from our body is
a ) plasma b ) salt c) urine d) metabolic waste
x) The tiny units located inside kidneys are
a) villi b) alveoli c) sac d) nephrons
Ans. Nephrons
xi) Excess amino acids are converted into
Ans. Urea
a ) urea b) urine c) ammonia d) nitrate
xii) It’s a machine which acts as a kidney
a ) pacemaker b) systolic c) stethoscope d) dialysis
Ans. Dialysis
xiii) The end of the urinary system is known as
a ) urethra b) kidneys c) ureter d) bladder
Ans. Urethra
Xiv) It lies inside cerebrum and controls sensory functions.
a ) Thalamus b) pons c) hypothalamus d) cerebellum
Ans. Thalamus
Xv) The frontal lobe: is responsible for initiating and coordinating ,motor movements and
a ) colour recognition b) attention c) process visual information d) problem solving
Ans. Problem solving
Xvi) Brain is enclosed in a hard-bony protective structure called
a ) collagen b) skull c) cartilage d) femur
Ans. Skull
Xvii) Nervous system consists of special cells termed as
a ) neurons b) nerve c) ciliary d) axons
Ans. Neurons
xviii) The folds in our brain closely resembles a
a ) almond b) chestnut c) walnut d) avacado
Ans. Walnut
Xix) The blood to the kidneys is transported via
a ) aorta b) renal artery c) pulmonary vein d) capillaries
xx) A person is likely to develop stones in which organ
a ) kidneys b) lungs c) liver d) intestines
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