Tag: science & technology

Quizzes (551) Questions (11015)

Questions Related to science & technology

Multiple choice general knowledge science & technology

Which vitamin helps in maintaining blood clotting proteins?

  1. Vitamin K

  2. Vitamin B7

  3. Vitamin C

  4. Vitamin A
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Vitamin K is essential for synthesizing several blood clotting proteins (coagulation factors II, VII, IX, and X) in the liver. Without sufficient vitamin K, blood cannot clot properly, leading to excessive bleeding. The other vitamins listed do not have this coagulation function.

Multiple choice general knowledge science & technology

Beri-Beri is the disease caused by deficiency of which vitamin?

  1. Vitamin B1

  2. Vitamin A

  3. Vitamin C

  4. Vitamin K
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Beri-Beri is caused by deficiency of Vitamin B1 (thiamine). It affects the nervous and cardiovascular systems, causing symptoms like muscle weakness, nerve damage, and heart problems. Other options listed cause different conditions: Vitamin A deficiency causes night blindness, Vitamin C deficiency causes scurvy, and Vitamin K deficiency affects blood clotting.

Multiple choice general knowledge science & technology

Vitamin A deficiency leads to what disease?

  1. Anemia

  2. Beri-beri

  3. Night Blindness

  4. Scurvy
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Vitamin A deficiency causes Night Blindness (nyctalopia) - difficulty seeing in low light or darkness. Vitamin A is essential for the pigment rhodopsin in the retina. Other options are incorrect: Anemia is often caused by iron or B12 deficiency, Beri-Beri is caused by B1 deficiency, and Scurvy results from Vitamin C deficiency.

Multiple choice general knowledge science & technology

Vitamin C is rich in which foods?

  1. Papaya

  2. Orange

  3. Apple

  4. Watermelon
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Oranges are one of the richest natural sources of Vitamin C (ascorbic acid). While papaya, apple, and watermelon contain various nutrients, oranges are particularly renowned for their high Vitamin C content, essential for immune function, collagen synthesis, and antioxidant protection.

Multiple choice general knowledge science & technology

Which vitamin we get from Sunlight?

  1. Vitamin A

  2. Vitamin D

  3. Vitamin B1

  4. Vitamin B12
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Vitamin D is synthesized in the skin when exposed to sunlight (UVB radiation). The body converts cholesterol compounds in the skin into Vitamin D3 (cholecalciferol) through this sun exposure. This is why Vitamin D is often called the 'sunshine vitamin'.

Multiple choice general knowledge science & technology

Which vitamin helps in maintaining healthy skin?

  1. Vitamin C

  2. Vitamin K

  3. Vitamin B12

  4. Vitamin A
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Vitamin A is crucial for maintaining healthy skin and mucous membranes. It supports skin cell growth, repair, and helps prevent dry, scaly skin. While Vitamin C has skin benefits, and Vitamin K helps with blood clotting, Vitamin A is specifically vital for skin health and integrity.

Multiple choice general knowledge science & technology

Demo 1

  1. Demo 1

  2. Demo 2

  3. Demo 3

  4. Demo 4
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

This is a demo/test question with placeholder content. Option A is marked as correct, but all options are generic placeholders ('Demo 1', 'Demo 2', etc.). The question content 'Demo 1' doesn't test any actual knowledge. This appears to be a malformed entry used for testing the quiz system rather than a real question.