Biology MCQs:

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"The easiest and noblest way is not to be crushing others, but to be improving yourselves."

― Socrates

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।

#: 41. Which pigment gives human skin, hair, eyes thier color?

A.

Hemocyanin

B.

Melanin

C.

Bilirubin

D.

Myoglobin

#: 42. who discovered the nucleus of an animal cell?

A.

Robert Hooke

B.

Charles Darwin

C.

Robert Brown

D.

Theodor Schwann

#: 43. Which one of the following is the basic unit of structure and function of all living organisms?

A.

Organ System

B.

Tissue

C.

Organ

D.

Cell

#: 44. Which molecule is the most common in the human body?

A.

Glycine

B.

Gloucose

C.

stearic acid

D.

Water

#: 45. What kind of muscle is the heart made of?

A.

Smooth Muscle

B.

Skeletal Muscle

C.

Cardiac Muscle

D.

Visceral Muscle

#: 46._______ carry signals from the outer parts of your body (periphery) into the central nervous system.

A.

Motor nurones

B.

Sensory nurones

C.

Interneurons

D.

Interneurons and Sensory nurones

#: 47. which is the rarest blood type in humans according to the American Red Cross?

A.

O positive

B.

AB positive

C.

O negative

D.

AB negative

#: 48. Chromosomes are made up of_________.

A.

DNA and protein

B.

RNA and Protein

C.

DNA and RNA

D.

DNA, Potein and RNA

#: 49. ________ supplies energy to living cells through the citric acid cycle when oxigen is present.

A.

Amino acid

B.

Ascorbic acid

C.

Pyruvic acid

D.

Fatty acid

#: 50. which metal is present in chlorophyll?

A.

Magnesium

B.

Calcium

C.

Iron

D.

Zinc

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