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Test: Introduction To Cell - Class 9 MCQ


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5 Questions MCQ Test Science Class 9 - Test: Introduction To Cell

Test: Introduction To Cell for Class 9 2024 is part of Science Class 9 preparation. The Test: Introduction To Cell questions and answers have been prepared according to the Class 9 exam syllabus.The Test: Introduction To Cell MCQs are made for Class 9 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Test: Introduction To Cell below.
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Test: Introduction To Cell - Question 1

Which microscope made it possible to observe the complex structure of cell and its organelles?

Detailed Solution for Test: Introduction To Cell - Question 1

Electron  microscope is used to understand the complex structure of the cell and its various organelles. when was it discovered.

Test: Introduction To Cell - Question 2

Which biologist proposed the cell theory along with Schwann?

Detailed Solution for Test: Introduction To Cell - Question 2

The cell was first discovered by Robert Hooke in 1665 using a microscope. The first cell theory is credited to the work of Theodor Schwann and Matthias Jakob Schleiden in the 1830s.

Test: Introduction To Cell - Question 3

The cells present in the cork slice are:

Detailed Solution for Test: Introduction To Cell - Question 3

Cells of cork slice are non living. hence the cells are dead cells.

Test: Introduction To Cell - Question 4

What will happen, a when a human RBC is a placed in a hypotonic environment?

Detailed Solution for Test: Introduction To Cell - Question 4

RBCs (Red Blood Corpuscles) will swell if they are placed in a hypotonic solution. The cells will gain water by osmosis. The cells might burst and rupture if they are placed in hypotonic solution for a longer time.

Test: Introduction To Cell - Question 5

In which year the nucleus of the cell was discovered?

Detailed Solution for Test: Introduction To Cell - Question 5

The cell nucleus was discovered by Antonie van Leeuwenhoek in the 18th century. He first observed its structure in a sample of salmon blood. However, its intricate details were furnished by Robert Brown in the year 1831.

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