Biology MCQs:

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"I have never met a man so ignorant that I couldn't learn something from him."

― Galileo Galilei

Science-Biology-Multiple Choise Questions and Answers

প্রতিটি প্রশ্নের জন্য চারটি করে উত্তর থাকবে যার একটি সঠিক, বামদিকে A, B, C এবং D এর উপর ক্লিক করে সঠিক উত্তরটি দেখতে পারেন। যদি উত্তর সঠিক হয় তবে অপশনটির ডান দিকে টিক () আর উত্তর ভূল হলে ক্রস () চিনহ প্রদ্ররশিত হবে।

#: 21. ________ are the pigments that give red, purple, and blue plants their rich coloring

A.

Anthocyanins

B.

Xanthophylls

C.

Carotenes

D.

Chlorophylls

#: 22. Which one of the following is the main element of haemoglobin?

A.

Vitamin

B.

Calsium

C.

Protein

D.

Fat

#: 23. Who is credited with the traditional classification of the five sense organs: sight, smell, taste, touch, and hearing

A.

Darwin

B.

Aristotle

C.

Louis Pasteur

D.

Alexander Fleming

#: 24. Which biological system removes excess and unnecessary materials from the body?

A.

Circulatory system

B.

Respiratory system

C.

Digestive system

D.

Excretory system

#: 25. Which of the following organelle is called the powerhouse of the cell?

A.

DNA

B.

Chromosome

C.

Mitochondria

D.

Ribosome

#: 26. Which of the following is used as a preservative of food articles?

A.

Sodium bicarbonate

B.

Sodium benzoate

C.

Sodium carbonate

D.

Sodium chloride

#: 27. what does it mean when your red blood cells are low?

A.

You are affected by cholera

B.

You are affected by typhoid

C.

You are affected by diphtheria

D.

You are affected by anemia

#: 28. When pollen is transported by wind, this is called_______.

A.

anemophily

B.

entomophily

C.

zoophily

D.

hydrophily

#: 29. what is the percentage of water in human brain?

A.

60%

B.

63%

C.

73%

D.

80%

#: 30. Which irritating chemical an ant injects into human body, when it bites a man?

A.

Nitric Acid

B.

Citric Acid

C.

Benzoic Acid

D.

Formic Acid

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