biology MCQs – Page 56

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 Review each marked answer and report any item that may be outdated or unclear.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
1101. In osmosis water molecules move from area of _____________ through semipermeable memberane?
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A. Higher solute concentration to lower solute concentration

B. Lower solvent concentration to higher solvent concentration

C. All of these

D. Lower solute concentration to higher solute concentration
1102. The plant dye Henna imparts orangered colour to skin and hairs due to its reaction with which of the following?
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A. Lipids

B. Protein and amino acids

C. Amino acids

D. Carbohydrates

1103. The vascular plants are termed as____________?
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A. pteridophytes

B. bryophytes

C. tracheophytes

D. all of these

1104. Which of the following have thickest walls?
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A. Capillaries

B. Arteries

C. None of these

D. Veins

1105. Which of the following mechanism explains development of anemia in Renal failure?
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A. Chronicity of the disease is respobsible for anemia

B. Failure of proper RBC synthesis, due to lack of chemical stimulation.

C. Destruction of RBC results from accumulated urea in the blood.

D. Failure of bone marrow is accompanied with renal failure.

1106. In plants, water potential is determined by major factors?
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A. Four

B. Five

C. Three

D. Two
1107. Mild tertian malaria is caused by _______ ?
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A. Plasmodium ovale

B. Plasmodium malariae

C. Plasmodium falciparum

D. Plasmodium vivax
1108. Cell wall is extremely well preserved in fossil specimens in__________?
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A. Slime moulds

B. None of these

C. Diatoms

D. Dinoflagellates

1109. Amount of water required to excrete 1gN of Urea is_________?
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A. 100 ml

B. 50 ml

C. 1 ml

D. 150 ml

1110. Melanin pigment in cockroach is found in__________?
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A. Epicuticle

B. Endocuticle

C. Exocuticle

D. All of these

1111. Sickle cell anemia was discovered by_________?
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A. Vernon Ingram

B. none of these

C. Miescher

D. Sanger

1112. Non-enveloped naked viruses are known as___________?
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A. virions

B. bacteriophages

C. prions

D. oncoviruses

1113. A Vegetable containing sulphur is____________?
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A. Potato

1114. Rose is an example of____________?
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A. Halophytes

B. Mesophytes

C. Hydrophytes

D. Xerophytes

1115. Which of the following is the swiftest form of the locomotion?
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A. Unguligrade

B. Digitigrade

C. Plantigrade

D. Hopping

1116. The phylum chrordata comprise about how many species?
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A. 50,000

B. 25,000

C. 10,00,000

D. 100,000

1117. Which of the following openings have cilia?
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A. Nephrostome

B. Nephridiopore

C. Both of these

D. None of these

1118. Which of the following excretory structure is associated with gut of the organism?
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A. Protonephridium

B. Metanephridium

C. Nephrons

D. Malpighian tubules
1119. Which of the following organ is responsible for body metabolism?
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A. Lungs

B. Kidney

C. Heart

D. Liver
1120. Splitting of glucose relates to_________?
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A. photorespiration

B. glycolysis

C. respiration

D. pyruvic acid