Table of Contents
- Time Limit: 15 minutes is the time limit to complete the quiz.
- Multiple Choice: Each question have multiple answer choices.
- One Correct Answer: Only one answer choice is correct for each question.
- No Negative Marking: There is no penalty for incorrect answers.
Class 9 Chemistry Chapter 5 The Fundamental Unit Of Life Quiz Questions
Welcome to Quiz 3 of Class 9 Science Chapter 5: The Fundamental Unit of Life. This free online quiz will test your knowledge on the essential concepts of cells, their structure, and their functions. It’s a great way to revise key topics like cell theory, organelles, and differences between plant and animal cells. Get ready to challenge yourself and strengthen your understanding.
Class 9 Science Chapter 5 The Fundamental Unit Of Life Quiz 3
Questions: The _____ are an exception to cell theory.
a. viruses
b. bacteria
c. fungi
d. protozoans
Answer:
Correct option is A
Viruses is an exception to cell theory because they are non-cellular organisms. once they infect a cell, they take over the machinery of the host cell to replicate themselves, killing the host.
Questions: Eukaryotes among the following is/are:
a. Fungi
b. Plants
c. Animals
d. All the above
Answer:
Correct option is D
- Eukaryotes are those organisms which contain nucleus and membrane-bound organelles.
- They are either unicellular or multicellular.
- Examples include plants, animals, fungi etc.
Questions: Who explained that new cells could be formed only by the division of the pre-existing cells
a. Robert Brown
b. Schleiden
c. Rudolf Carl Virchow
d. Schwann
Answer:
Correct option is C
Rudolf Carl Virchow first explained that the new cells could be formed only by the division of the pre-existing cells
Questions: Suman prepared a slide containing a scrapping of human cheek cells and observed it under a compound microscope. Which components he would have observed?
a. Cell membrane, cell wall and nucleus
b. Nucleus, cell wall and lysosomes
c. Cell wall, nucleus and cytoplasm
d. Cytoplasm, nucleus and cell membrane
Answer:
Correct option is D
Cheek cell is an animal cell so he observed cytoplasm, nucleus and cell membrane which can be seen under a compound microscope.
Questions. The ____________ are an exception to cell theory.
a. viruses
b. bacteria
c. fungi
d. protozoanstissue
Answer:
Correct option is A
- Virus are non-living things which replicate in other living cells.
- They reproduce only by invading other cells and lack the cellular material for self-reproduction.
- They do not have a cell structure and are an exception to the cell theory.
Questions. Which of the following is a largest cell?
a. Egg of an Ostrich
b. Egg of an Emu
c. Frog’s egg
d. Egg of a snake
Answer:
Correct option is A
- The cell size of multicellular eukaryotes ranges between 5 to 100μm.
- Largest egg is that of ostrich (17 cm x 15 cm), while it is of whale shark (30 cm in diameter) among aquatic animals.
Questions. Who first saw and described a living cell?
a. Schleiden
b. Schwann
c. Antony von Leeuwenhoek
d. Rudolf Virchow
Answer:
Correct option is C
Leeuwenhoek is the father of microbiology. He discovered both protists and bacteria.
Questions. 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
Answer:
Correct option is C
Robert Hooke discovered the cell, which is a basic unit of all living things.
Questions. Schleiden and Schwann proposed cell theory in
a. 1836 – 37
b. 1838 – 39
c. 1901 – 02
d. 1938 – 39
Answer:
Correct option is B
According to cell theory, all organisms are made of cells, and cells are the basic units of life. These were based on a conclusion made by Schwann and Matthias Schleiden in 1838, after comparing their observations of plant and animal cells. Schleiden and Schwann proposed cell theory in 1838-39.
Questions. The generalisation Omnis cellula – e cellula is given by:
a. Lawanda
b. Durocher
c. Leuwenhoek
d. Rudolph Virchow
Answer:
Correct option is D
Virchow’s theory stated thatcells arise from previously existing cells i.e., Omnis cellula – e cellula which is a latin term.
Questions. Electron microscope was invented by:
a. Robert hooke
b. Knoll and Ruska
c. Linnaeus
d. Schleiden and Schwann
Answer:
Correct option is B
Electron microscope was invented by Knoll and Ruska
Questions: Largest cell visible to unaided eye is:
a. Hen’s egg
b. Vulture’s egg
c. Ostrich’s egg
d. Anaconda’s egg
Answer:
Correct option is C
Largest visible cell is an egg, egg of an Ostrich is the largest among all eggs laid by different animals with the largest dimensions known to be six inches long and five inches wide.
