Only 1% Can Score 40/60 on This General Knowledge Challenge!

[00:00:00]If you can score at least 70% on this general knowledge quiz, your knowledge level is truly impressive. You'll have 10 seconds for each question. No pausing, no cheating. Ready to challenge your brain? Let's begin. Question number one. Which specialized photoreceptor cells allow us to see vivid colors?

[00:00:29]Answer, cone cells. Question number two.

[00:00:31]What is the largest organ by weight in the human body?

[00:00:46]Answer, skin. Question number three. How many bones are in an adult human skeleton?

[00:01:04]Answer, 206 bones. Question number four.

[00:01:08]Which blood cells fight infections?

[00:01:21]Answer, white blood cells. Question number five. What covers and protects the eye?

[00:01:38]Answer, cornea. Question number six.

[00:01:41]Which organ absorbs most nutrients from food?

[00:01:56]Answer, small intestine. question number seven, what is the lifespan of red blood cells?

[00:02:14]Answer, 120 days question number eight, what determines eye color in humans?

[00:02:32]Answer, iris question number nine, which receptors detect smell?

[00:02:49]Answer, olfactory receptors question number 10, what mineral gives bone strength?

[00:03:06]Answer, hydroxyapatite question number 11, which skin layer acts as a waterproof barrier?

[00:03:24]Answer, epidermis question number 12, which blood group is the universal donor?

[00:03:41]Answer, blood type O question number 13, which eye muscle controls light entry?

[00:03:59]>> Answer, iris question number 14. What connects bone to bone?

[00:04:17]Answer, ligament question number 15.

[00:04:19]Which pigment gives skin its color?

[00:04:34]Answer, melanin question number 16. What gas do red blood cells transport?

[00:04:51]Answer, oxygen question number 17. Which organ absorbs water and forms stool?

[00:05:09]Answer, large intestine question number 18. Which nerve carries visual signals to the brain?

[00:05:26]Answer, optic nerve question number 19.

[00:05:29]Which bone marrow produces blood cells?

[00:05:44]Answer, red bone marrow question number 20. What causes sneezing sensation?

[00:06:01]Answer, nerve irritation. Question number 21. Which protein forms hair and nails? Answer, keratin. Question number 22. What neutralizes stomach acid in the small intestine?

[00:06:36]Answer, sodium bicarbonate. Question number 23. Which blood cells help in clotting?

[00:06:54]Answer, platelets. Question number 24.

[00:06:58]What causes the blind spot in the eye?

[00:07:11]Answer, lack of photoreceptors. Question number 25. What is the smallest bone in the human body?

[00:07:29]Answer, stapes. Question number 26. What do thermoreceptors detect?

[00:07:46]>> Answer, temperature question number 27, which organ produces bile?

[00:08:04]Answer, liver question number 28, what is the main liquid component of blood?

[00:08:21]Answer, plasma question number 29, which eye structure focuses light on retina?

[00:08:39]Answer, lens question number 30, what connects muscle to bone?

[00:08:56]Answer, tendon question number 31, what increases surface area in small intestine?

[00:09:14]Answer, microvilli question number 32, what warms and moistens incoming air in nose?

[00:09:31]Answer, mucous membranes question number 33, which skin layer has blood vessels and glands?

[00:09:49]Answer, dermis. Question number 34, which protein carries oxygen in blood?

[00:10:07]Answer, hemoglobin. Question number 35, which disease weakens bones?

[00:10:25]Answer, osteoporosis. Question number 36, what keeps the eye moist?

[00:10:41]Answer, aqueous humor. Question number 37, which disease increases white blood cells abnormally?

[00:10:59]Answer, leukemia. Question number 38, what are finger-like projections in large intestine called?

[00:11:17]Answer, haustra. Question number 39, which protein gives skin elasticity?

[00:11:34]Answer, a lasting question number 40, what divides the nasal cavity into two halves?

[00:11:52]Answer, nasal septum. Question number 41, which organ pumps blood?

[00:12:09]Answer, heart. Question number 42, what is the basic unit of life?

[00:12:26]Answer, cell. Question number 43, which vessels carry blood away from heart?

[00:12:45]Answer, arteries. Question number 44, which organ filters blood?

[00:13:02]Answer, kidney. Question number 45, which part of brain controls balance?

[00:13:19]Answer, cerebellum. Question number 46, which gas is required for breathing?

[00:13:37]Answer, oxygen. Question number 47, what does hemoglobin do?

[00:13:54]Answer, carries oxygen. Question number 48, which organ stores bile?

[00:14:12]Answer, gallbladder. Question number 49, what is the largest internal organ?

[00:14:29]Answer, liver. Question number 50, which eye part controls focus?

[00:14:47]Answer, lens. Question number 51, which system controls coordination?

[00:15:04]Answer, nervous system. Question number 52, what is the function of platelets?

[00:15:22]Answer, blood clotting question number 53. Which bone protects the brain?

[00:15:39]Answer, skull question number 54. What is the function of lungs?

[00:15:56]Answer, gas exchange question number 55.

[00:16:00]Which organ produces insulin?

[00:16:14]Answer, pancreas question number 56.

[00:16:17]What is the functional unit of kidney?

[00:16:32]Answer, nephron question number 57. What is liquid part of blood?

[00:16:49]Answer, plasma question number 58. What connects brain to body?

[00:17:07]Answer, nerves question number 59. What protects lungs?

[00:17:24]>> Answer rib cage question number 60.

[00:17:27]Which vitamin is produced by sunlight?

[00:17:42]Answer vitamin D. Times up. Quiz finished. How many did you get right?

[00:17:48]Drop your score in the comments. If you enjoyed this video, smash the like button, share it with your friends, and subscribe to Wisdom Note for more awesome quizzes. Thanks for watching.