Tools Techniques - Questions & Answers | Exam2Win

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111. The cell was discovered in

A. 18th Century

B. 19th Century

C. First half of 17th Century

D. Second half of 17th Century

Explanation:

112. Resolving powers of human eye, compound microscope and electron microscope are respectively

A. 100 μm, 0.25 μm and 10 Å

B. 100 μm, 100 nm and 100 Å

C. 1 mm, 10 μm and 100 nm

D. 1 mm, 0.5 μm and 1 Å

Explanation:

113. Dyes that make cellular structures flow under UV -radiations are

A. Fluorescent

B. Fluorechromes

C. Autofluorescent

D. Phosphorescent

Explanation:

114. Cell principle is not applicable to

A. Bacteria

B. Viruses

C. Algae

D. Fungi

Explanation:

115. Which of the following statement is not true?

A. Fluorescent microscopy uses normal light to view molecules

B. Immersion oil increases refractive index

C. Electron microscope uses electromagnetic lenses

D. Scanning tunneling microscope is used for scanning computer chips for defects

Explanation: