GS One‑Liners
high‑yield facts · smart revision
5107
facts
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Latest facts first
| # | Question & Answer |
|---|---|
| 3751 |
What does the endocrine system release into the blood?
-
Hormones.
|
| 3752 |
How do nerve impulses travel across synapses?
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Using neurotransmitters.
|
| 3753 |
What connects the brain to the rest of the body?
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Spinal cord.
|
| 3754 |
Which part of the brain maintains balance and coordination?
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Cerebellum.
|
| 3755 |
Which organ controls voluntary actions?
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Brain.
|
| 3756 |
What is the basic unit of the nervous system?
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Neuron.
|
| 3757 |
Which hormone increases urine output by reducing water reabsorption?
-
ADH (when its level decreases).
|
| 3758 |
What is the primary waste product removed by kidneys?
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Urea.
|
| 3759 |
Which structural unit performs filtration in the kidney?
-
Nephron.
|
| 3760 |
What is the main function of the kidneys?
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To filter blood and form urine.
|
| 3761 |
Which organ filters lymph?
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Lymph nodes.
|
| 3762 |
What is lymph?
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A fluid that helps in immunity and waste removal.
|
| 3763 |
What is the universal recipient blood group?
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AB positive.
|
| 3764 |
What is the universal donor blood group?
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O negative.
|
| 3765 |
What is the normal human blood pressure?
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Around 120/80 mmHg.
|
| 3766 |
What are the lower chambers called?
-
Ventricles.
|
| 3767 |
What are the upper chambers of the heart called?
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Atria.
|
| 3768 |
How many chambers are there in the human heart?
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Four.
|
| 3769 |
What is the main function of the heart?
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To pump blood throughout the body.
|
| 3770 |
What carries oxygen from the lungs to body tissues?
-
Hemoglobin in red blood cells.
|
| 3771 |
What are alveoli?
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Tiny air sacs where gas exchange occurs.
|
| 3772 |
Which gas is released during exhalation?
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Carbon dioxide.
|
| 3773 |
Which gas is absorbed by the blood in the lungs?
-
Oxygen.
|
| 3774 |
What drives air into the lungs during breathing?
-
Contraction of the diaphragm.
|
| 3775 |
Which enzyme breaks down fats in the intestine?
-
Lipase.
|