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Test: Introduction To Cell


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


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This mock test of Test: Introduction To Cell for Class 9 helps you for every Class 9 entrance exam. This contains 5 Multiple Choice Questions for Class 9 Test: Introduction To Cell (mcq) to study with solutions a complete question bank. The solved questions answers in this Test: Introduction To Cell quiz give you a good mix of easy questions and tough questions. Class 9 students definitely take this Test: Introduction To Cell exercise for a better result in the exam. You can find other Test: Introduction To Cell extra questions, long questions & short questions for Class 9 on EduRev as well by searching above.
QUESTION: 1

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

Solution:

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

QUESTION: 2

Which biologist proposed the cell theory along with Schwann?

Solution:

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.

QUESTION: 3

The cells present in the cork slice are:

Solution:

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

QUESTION: 4

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

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.

QUESTION: 5

In which year the nucleus of the cell was discovered?
Solution:

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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