Tools Techniques - Questions & Answers | Exam2Win

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221. The cell as a basic unit of structure of living things was discovered by

A. Schleiden and Schwann

B. Mendel

C. Robert Hooke

D. Aristotle

Explanation:

222. Schleiden (1838) proposed cell to be structural and functional unit of life. His idea is

A. Observation

B. Assumption

C. Generalisation

D. Hypothesis

Explanation:

223. Father of microscopy and microbiology is

A. Theophrastus

B. Janssen

C. Leeuwenhoek

D. Hooker

Explanation:

224. Schultze’s reagent is

A. Safranin

B. Fast green

C. Phloroglucinol + HCI

D. Chlor-zinc-iodine

Explanation:

225. When a cell of 2 μm diameter grows to double its diameter, its surface area : volume relationship will

A. Remain the same

B. Become double

C. Reduce to half

D. Become undetermined

Explanation: