biology MCQs – Page 73

Practise multiple-choice questions from biology for competitive examinations and subject revision. Review each marked answer and report any item that may be outdated or unclear.

biology Mcqs
1441. Acid present in gastric juice is_________?
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A. Sulphuric Acid

B. Acetic Acid

C. Citric Acid

D. Hydrochloric Acid
1442. Oxygen is the production of____________?
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A. Mitochonderia

B. Chloroplast

C. Peroxisomes

D. Both A & B

1443. All cell of an organism are similar in_________?
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A. Structure

B. Fundamental organization

C. Shape

D. Size

1444. Mastectomy is mainly associated with which of these diseases?
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A. Tuberculosis

B. Breast Cancer

C. AIDS

D. Blood Cancer

1445. Link between living and non-living organisms?
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A. Virus

B. Cyanobacteria

C. Plants

D. Bacteria

1446. Term allele was coined by?
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A. Negalli

B. Bitson

C. Robert Brown

D. Dixon

1447. When the Left Ventricle in the human heart contracts, the blood moves to the_________ ?
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A. Aorta

B. Pulmonary Artery

C. Lungs

D. Brain

1448. Organ rejection is caused by__________?
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A. B-Lymphocytes

B. T-lymphocytes

C. Both B and T lymphocytes

D. RBCs

1449. One of the reasons why some people cough while eating a meal may be due to the improper movement of _______ :
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A. Epiglottis

B. Diaphram

C. Larynx

D. None of these

1450. Keratin is a type of Protein Found in __________?
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A. Nails

B. Muscle Cells

C. Skin Fiber

D. Blood Cells

1451. A decrease in the rate of beating of heart is called__________?
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A. Bradycardia

B. Tachycardia

C. Non of these

D. Braditachycardia

1452. The method of reproduction of new plants by cells instead of seed is known is:___________?
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A. Recombination

B. Tissue culture

C. Antibiosis

D. Mutation

1453. Virus is__________?
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A. multicellular

B. unicellular

C. none of these

D. acellular
1454. Which of the following diseases induce immunity?
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A. Smallpox

B. Diabetes

C. Jaundice

D. None of these

1455. The chromosomes as thread like structures in nucleus was first described by ________?
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A. Mendel

B. Darwin

C. Strasburger

D. Levitzky

1456. Enzyme activity can also be charted through the __________ ?
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A. Rate of digestion

B. Number of active sites

C. Rate of reaction

D. Level of pH

1457. Transport of oxygen by blood takes place with the help of________?
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A. Leucocytes

B. Thrombocytes

C. Erythrocytes

D. Lymphocytes

1458. MDT is used for disease :_________?
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A. None of these

B. Polio

C. Leprosy

D. Tuberculosis

1459. __________is a condition in which there is an absence of oxygen supply to an organs tissues?
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A. Hypoxia

B. Enuresis

C. Anorexia

D. Anoxia
1460. Cell use _______ to make proteins?
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A. Cytoplasm

B. Ribosomes

C. RNA

D. DNA