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1. Who discovered the nucleus of the cell?
(a) Robert Hooke
(b) Robert brown
(c) Leeuwenhoek
(d) Purkinje

2. Which of the following are the main constituents of cell wall?
(a) Cellulose
(b) Pectin
(c) starch
(d) Protein
3. Who coined the term protoplasm?
(a) Virchow
(b) Leeuwenhoek
(c) Purkinje
(d) Robert Hooke

4. Which of the following is called power house of cell?
(a) Lysosome
(b) Nucleus
(c) Mitochondrion
(d) Golgi body

5. Which of the following is called kitchen of the cell?
(a) Golgi body
(b) Mitochondrion
(c) Lysosome
(d) chloroplast

6. Which of the cell organelles consists of chloroplast?
(a) Plastids
(b) Mitochondria
(c) Vacuoles
(d) Cell wall

7. Which of the following cell organelle is called suicidal bag of cell?
(a) Mitochondria
(b) Lysosome
(c) Golgi body
(d) Cytoplasm

8.Root hair absorbs water from soil through
(a) Osmosis
(b) Active transport
(c) Diffusion
(d) Endocytosis

9. Which of the following is called store house of cell?
(a) Golgi body
(b) Mitochondria
(b) Endoplasmic reticulum
(d) vacuole

10. Double membrane is absent in-
(a) Mitochondrion
(b) Chloroplast
(c) Nucleus
(d) Lysosome

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       MCQ                               

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       MCQ                               

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Q1. Who first time described and named the term “Cell”?

1. M. Schleiden

2. Anton van Leeuwenhoek

3. Robert Hooke

4. All the above

Q2. Which object was studied by Robert under his microscope magnified (30x) for the discovery of cell?

1. onion slice

2. slice of cork

3. grains of sand

4. none

3.When the first cell was discovered by Robert?

1. 1660

2. 1663

3. 1670

4. 1665

Q4. Leeuwenhoek discovered a microbial world in a drop of:

1. Lake water

2. Pond water

3. Fresh water

4. Sea water

Q5. Who were two German Biologists?

1. Schleiden, Robert Hooke

2. T. Schwann , Leeuwenhoek

3. Robert Hooke, Leeuwenhoek

4. M. Schleiden and T. Schwann

Q6. Who proposed Cell Theory ?

a. Anton van Leeuwenhoek

b. Schwann

c. Schleiden and Schwann

d. Robert Hooke

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Mcq answers

Robert Hook
Slice of cork
1665
Pond water
M. Schleiden and T. Schwann
Schleiden and Schwaan

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Q.1. Assertion: Organisms are made up of cells.

Reason: Cells are structural unit of living organisms.

A cell keeps its chemical composition steady within its boundary.

Answer

Answer: (a) Cells are the basic structural and functional unit of organism.

Q.2. Assertion: Specialization of cells is useful for organism.

Reason: It increases the operational efficiency of an organism.

Answer

Answer: (a) Specialization of the cell increases the efficiency of the cell for a particular function.

Q.3. Assertion: The number of cells in a multicellular organism is inversely proportional to size of body.

Reason: All cells of biological world are alive.

Answer

Answer: (d) The size and shape of the cell in multicellular organism depends upon the location and function performed by them.

Q.4. Assertion : Living organisms possess specific individuality with the definite shape and size.

Reason : Both living and non living entities resemble each other at the lower level of organisation.

Answer

Q.5. Assertion : It is important that the organisms should have cell.

Reason : A cell keeps its chemical composition steady within its boundary.

Answer

Answer: (a) Metabolic reactions of a living organism can occur only in a delicately balanced environment in the non-living organisms. The cells are the life supporting chambers which have such a special environment. A living cell keeps its chemical composition steady within its boundary.

Q.6. Assertion: The number of cells in a multicellular organism is inversely proportional to the size of

body.

Reason: All the cells in the biological world are of same size.

Answer

Answer: (d) Number of cells in a multicelluar organism are directly proportional to the size of the body.

Q.7. Assertion: Prokaryotes have a one envelop system.

Reason: There is not even a single membrane that surrounds the prokaryotic cell.

Answer

Answer: (c) Most prokaryotic cell particularly the bacterial cells have a chemically complex cell envelope. The cell envelope consists of a tightly bound three layered structure, i.e. the outermost glycocalyx followed by the cell wall and plasma membrane. Although each layer of the envelope performs distinct function, they act together as a single protective unit.

Q.8. Assertion: Eukaryotic cells have more DNA than prokaryotic cells.

Reason: Eukaryotes are genetically more complex than prokaryotes.

Answer

Answer: (a) Eukaryotic cells have more DNA than prokaryotic cells because in eukaryotic cells complex chromosomes are composed of DNA and histone proteins. But in prokaryotic cells, histone protein is absent.

Q.9. Assertion: Rudolf Virchow modified the hypothesis of cell theory given by Schleiden and Schwann.

Reason : Cell theory says that all cells arise from pre-existing cells.

Answer

Answer: (b) Schleiden and Schwann together formulated the cell theory. The theory however, did not explain as to how new cells were formed. Rudolf Virchow (1855) first explained that cells divided and new cells are formed from pre-existing cells (Omins cellua e cellua). He modified the hypothesis of Schleiden and Schwann to give the cell theory a final shape. The present cell theory states that: (i) all living organism are composed of cells and products of cells. (ii) all cells arise from preexisting cells.

Q.10. Assertion: Schleiden and Schwann were the first to observe the cells and to put forward cell theory.

Reason: The cells are always living unit.

Answer

Answer: (d) They are credited with cell theory but the cells are not always the living unit. Cells die and still remain functional such as cells in animal and xylem vessels in plants.

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1. Robert Hooke.
2. Slice of cork .
3. 1665.
4. Pond water.
5. M.Schleiden and T.Schwann.
6. Schwann and Schleiden.

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Case Study Based:-
{Cell division}:-
1. Mitosis.
2. Meiosis.
3. Mitosis.

( 2. )
1. Plasmolysis.
2. Swell.
3. B. A concentrated solution is known as a hypotonic solution.
Reason:- A concentrated solution is known as hypertonic solution.
D. All of the statements are incorrect.
Reason:- Statement A. and statement C. are correct.

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1.Robert Hooke
2.Slice of Cork
3.1665
4.Pond Water
5. M.Schleiden and T.Schwann
6.Schleiden and Schwann

Case study
I:
1.Mitosis
2.Meiosis
3.Mitosis
II:
1.Plasmolysis
2.Swell
3.A Concentrated solution is known as a hypotonic solution.

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1.Robert Hooke
2.Slice of Cork
3.1665
4.Pond Water
5.M. Schleiden and T. Schwann
6.Schleiden and Schwann
Case Study:-
I)1.Mitosis
2.Meiosis
3.Mitosis
II)1.Plasmolysis
2.Swell
3.Concentrated solution is known as hypotonic solutio .

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Case Study Answers
1.mitosis
2.meiosis
3.mitosis

1.Plasmolysis
2.Swell
3.Dilute solution is known as hypotonic solution

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1. Robert Hookie
2. Slice of Cork
3. 1665
4. Pond water
5. M. Schleiden and Schwann

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Assertion and reason qns Case study based qns and MCQ  basedon the chapter Fundamental unit of life