Biology General Knowledge Quiz with Answers

Which group of animals are named because of their spiny skin and a peculiar water-driven tube system that they use for moving around?
(A) Hemichordata
(B) Aschelminthes
(C) Echinodermata
(D) Mollusca
Correct Answer : C
Explanation :
1. All the creatures of Echinodermata phylum are marine and have thorny bodies.
2. There is a mass flow system in their body.
3. A specific water-conveying canal system is found, which helps in their movement.
Which of the following is essential to form haemoglobin in blood?
(A) Fats
(B) Iron
(C) Calcium
(D) Protein
Correct Answer : B
Explanation :
1. Iron is required for the formation of hemoglobin.
2. Hemoglobin is a part of red blood cells that carries oxygen and removes carbon dioxide (a waste product) from the body.
3. Iron is stored in the body mainly in hemoglobin.
Which of the following can degrade detritus into simpler inorganic substances?
(A) Algae
(B) Phytoplankton
(C) Fungal enzymes
(D) Lichens
Correct Answer : C
Explanation :
1. Fungal enzymes decompose simple inorganic substances.
2. Fungi are a type of microorganisms that decompose organic matter.
3. Enzymes break down organic matter into smaller molecules, which can then be used by the body of the fungus.
Nyctalopia, more commonly known as Night Blindness, is caused by the deficiency of which nutrient?
(A) Vitamin C
(B) Magnesium
(C) Potassium
(D) Vitamin A
Correct Answer : D
Explanation :
1. Nyctalopia (night blindness) is caused by deficiency of Vitamin A.
2. Foods rich in Vitamin A are carrots, spinach, sweet potatoes, lettuce, etc.
3. Vitamin A deficiency can cause damage to rod cells, which reduces the ability to see in low light.
Who among the following developed the Cholera vaccine in 1885?
(A) Edward Jenner
(B) Jaime Ferrán
(C) Jonas Salk
(D) Leon Calmette
Correct Answer : B
Explanation :
1. The credit for developing the cholera vaccine in 1885 goes to Spanish-French bacteriologist and hygienist Jaime Ferrán.
2. He tested a live attenuated bacterial vaccine during a cholera epidemic in Valencia.
3. Jaime Ferrán's vaccine successfully protected people from cholera and began to be used in vaccination programs around the world.
Which of the following fall under Phylum Cnidarian of the animal kingdom?
(A) Sea urchins
(B) Earthworms
(C) Snails
(D) Corals
Correct Answer : D
Explanation :
1. Coral comes under the Cnidarian phylum of the animal kingdom.
2. Coral, also known as Coral and Mirajan, is a type of tiny sea creatures that live in groups numbering millions.
3. Coral, also known as Coral and Mirajan, is a type of tiny sea creature that lives in groups numbering millions.
Starch and sugar in our food are forms of _____.
(A) Proteins
(B) fats
(C) vitamins
(D) carbohydrates
Correct Answer : D
Explanation :
1. Starch and sugar found in our food are forms of carbohydrates. Carbohydrates are an important part of our diet. They provide energy to the body and are essential for other body functions.
2. Starch is a complex carbohydrate found in plants. It is found in wheat, rice, potatoes, and other grains. Starch is used to thicken food, make sugar, and make other foods.