Which of the following statement is or are correct?

Here, are all the statements are correct. Hence, your answer will be option [D].

Bikash is doing his homework which is given by his teacher. Would you help him to choose the incorrect sentences?

Golgi apparatus is absent in bacteria blue and green matches firms and red blood cells of mammals and other animals

Organelle without a cell membrane is

Nucleus is surrounded by two nuclear membranes was both forming a nuclear envelope. Golgi apparatus is a set of membrane bounded, fluid-filled visicles, vacuoles and flattened cisternae. Plastids are also membrane bound organelles but ribosomes moves freely in the matrix or remain attached to the endoplasmic reticulum.

The only cell organelle seen in prokaryotic cell is

Unlike eukaryotic cell, a prokaryotic cell lacks membrane bound organelles like plastids, mitochondria and endoplasmic reticulum but smaller and randomly scattered ribosomes are seen.

Monty appeared in class test but he confused to know the correct statement. Would you help him to know that?

Here, are all the statements are correct. Hence, your answer will be option [D].

Silver nitrate solution is used to study

Camillo Golgi, discovered the revolutionary method of staining individual cell structures. This method is referred to as “Black reaction”. It uses weak solution of silver nitrate and is valuable in tracing the processes and most delicate ramifications of cells.

Consider the following statements and choose the incorrect one:

If the medium surrounding the cell has a higher water concentration, than the cell will gain water by osmosis, such a dilute solution is called hypotonic solution.

The undefined nuclear region of prokaryotes is also known as

The prokaryotic cells lack true nucleus and a circular DNA lies naked in the cytoplasm. The unidentified nuclear region of the cell is called nucleoid. The prokaryotic cell lacks chromosomes and nucleolus or nuclear membrane and nucleoplasm remains undifferentiated from the cytoplasm.

Abdul appeared in class test but he confused to know the incorrect statement. Would you help him to know that?

In nucleoid, its DNA content is equal to a single DNA molecule. Generally, in nucleus, its DNA content is equal to two or several DNA molecules.

Recently, in a science class test, you are asked a question where you have to say whether the statements are correct or not?

Here, are all the statements are correct. Hence, your answer will be option [D].

Which of these options are not a function of Ribosomes?

Ribosomes are dense, spherical and granular particles which remains freely in the matrix or remain attached to endoplasmic reticulum. They are not bound by membrane and are present in both prokaryotic and eukaryotic cells. They play important role in synthesis of proteins. All enzymes are proteins but all hormones are not proteins.

Class 9 Science Chapter 5 MCQ of The Fundamental Unit of Life.

Updated on June 10, 2023
by Tiwari Academy

Class 9 Science Chapter 5 MCQ (Multiple Choice Questions) of The Fundamental Unit of Life. All the questions are important and useful for clearing the doubts in chapter 5 of standard 9 science. These questions provide a perfect practice for the preparation of school unit tests or terminal exams. These questions take less time to revise and provide maximum result in exams. So, practice here with MCQs and get good marks in exams.

Class 9 Science Chapter 5 MCQ Online Tests for 2025-26

Class: 9	Science
Chapter: 5	The Fundamental Unit of Life
Contents:	MCQ Online Tests with Answers

Class 9 Science Chapter 5 MCQ with Answers for 2025-26

Class 9 Science Chapter 5 MCQ Online Test contains about 75 questions in all with answers and explanation. New questions will be added time to time to increase the question bank. All the questions are taken from NCERT Books for 9th Standard Science issued for academic session 2025-26.

Living cells were discovered by

[A]. Robert Hooke

[B]. Purkinje

[C]. Leeuwenhoek

[D]. Robert Brown

View Answer

Read the following sentences carefully, and choose the incorrect one:

[A]. The mitochondria synthesize energy rich compounds (ATP), they are known as powerhouse of the cell.

[B]. Mitochondria are present in bacteria and the red blood cells of mammals.

[C]. ATP stands for the organic compound adenosine triphosphate.

[D]. Mitochondria are able to make some of their own proteins, so they are regarded as semi-autonomous organelles.

View Answer

In the last year board examination, Rahul were asked a question where he had to choose the statement which was/were correct? Will you be able to answer this question?

[A]. The chromatin material is a thin, thread like intertwined mass of chromosome material and composed of the genetic substance DNA and proteins.

[B]. DNA store all the information necessary for the cell to functions to grow and to reproduce further cells of the next generation.

[C]. Chromosomes are thread like structures usually present in the nucleus that become visible only during cell division.

[D]. All the above.

View Answer

In a quiz competition, you are asked a question where you have to choose the statement which is/ are incorrect?

[A]. Nuclear envelope encloses a space between two nuclear membranes and is connected to a system of membranes called the endoplasmic reticulum. [B] Nucleus is rich in protein and RNA molecules and act as the site for ribosome formation. [C] When a living plant cell loses water through osmosis, there is a shrinkage or contraction of the protoplasm away from the cell wall, called plasmolysis. [D] None of the above.

View Answer

In a science quiz competition, Rubi are asked a question where she had to choose the statement which was/were correct?

[A]. Most animal cells require a high internal concentration of potassium ions for the proteins synthesized by the ribosome and for certain enzymatic functions.

[B]. Endocytosis is the ingestion of material by the cells through the plasma membrane.

[C]. Phagocytosis is a common method of feeding among the protozoa and lower metazoan.

[D]. All the above.

View Answer

Cell wall of which one of these is not made up of cellulose?

[A]. Bacteria

[B]. Hydrilla

[C]. Mango tree

[D]. Cactus

View Answer

Pooja is completed her science chapter where she wrote some statements. She wants to know whether the statements are correct or not? She wants to take help from you:

[A]. Human heart has a special type of muscle cell called cardiac muscles.

[B]. Stomach has a special cell such as mucous cells.

[C]. Skeletal muscles are voluntary muscles i.e. their contraction depends on our will or control.

[D]. All the above.

View Answer

Which cell organelle plays a crucial role in detoxifying many poisons and drugs in a cell?

[A]. Golgi apparatus

[B]. Lysosomes

[C]. Smooth endoplasmic reticulum

[D]. Vacuoles

View Answer

Plasmolysis in a plant cell is defined as:

[A]. Break down (lysis) of plasma membrane in hypotonic medium

[B]. Shrinkage of cytoplasm in hypertonic medium

[C]. Shrinkage of nucleoplasm

[D]. None of them

View Answer

Q10

Which of these is not related to endoplasmic reticulum?

[A]. It behaves as transport channel for proteins between nucleus and cytoplasm

[B]. It transports materials between various regions in cytoplasm

[C]. It can be the site of energy generation

[D]. It can be the site for some biochemical activities of the cell

View Answer

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Last Edited: June 10, 2023