Introduction to Cell

Q.

Write the different levels of organization in multicellular organism.

Q.

Explain the term Flow Cytometry.

Q.

The life cycle of all multicellular organism starts with a single cell.

1. True
2. False

Q.

In which of the following organism, all functions of the body are carried out by a single cell?

1. Unicellular Organism

2. Bicellular Organism

3. Tetracellular Organism

4. Multicellular Organism

Q.

Teacher which spelling is correct

1.Antony Van Leeuwenhoek

2.Anton Van Leeuwenhoek

3.Antonie Van Leeuwenhoek

Q.

What is a tissue? [1 MARK]

Q.

Objects which cannot be seen by naked eyes are observed through a __.

Q. Assertion :The number of cells in a multicellular organism is inversely proportional to size of body. Reason: All cells of biological world are of the same size.

1. Both Assertion and Reason are correct and Reason is the correct explanation for Assertion
2. Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion
3. Assertion is correct but Reason is incorrect
4. Both Assertion and Reason are incorrect

Q. Write about the contribution of Robert Hooke in cell biology.

[Review question: Pg. No: 67]

Q.

Why is cell consider as structural and functional unit of the life

Q. Why we can't count the number of cells in our body?

Q. Who discovered and coined the term 'cell'?

1. Robert Grew
2. Robert Brown
3. Robert Hooke
4. Robert Darwin

Q. In unicellular organisms, all physiological activities by the special structures present inside the body called _______

1. Organs
2. organelles
3. Tissues
4. None of the above

Q.

In solution it's given wrong please correct it mam its given that Matthias Shlieden that he proposed that animals are made up of cells and Theodor Shwann who proposed that plants are made up of cells.

Q. _____________ is the basic structural and functional unit of every living organism.

1. Tissue
2. Nucleus
3. Cell membrane
4. Cell

Q.

Match the discoveries with the scientist who have made it

$\begin{array}{cc}\text{Column I}& \text{Column II}\\ \text{a. Anton Van Leeuwenhoek}& \text{i. All animals are made of cells}\\ \text{b. Robert Hooke}& \text{ii. Father of microbiology}\\ \text{c. Theodor Schwann}& \text{iii. Cork has boxed structures}\\ \text{d. Matthias Schleiden}& \text{iv. All plants are made of cells}\end{array}$

1. a-ii, b-iii, c-iv, d-i

2. a-ii, b-i, c-iv, d-iii

3. a-iii, b-i, c-iv, d-ii

4. a-iii, b-ii, c-iv, d-i

Q. Which of the following will comprise the most appropriate feature of prokaryotic cells that distinguished them from the eukaryotic cells?

1. Lack of ribosomes
2. Lack of nuclear membranes and lack of membrane-bound organelles like plastid and mitichondria
3. Biochemistry being fundamentally different
4. Have dispersed DNA

Q.

A group of similar cells that are specialised to perform specific functions is called a ___

Q. While mounting a glass slide what are the precautions you should follow ?

Q. Hooke observed as boxes or cells in the cork were actually .......... cell.

1. Living
2. Dead
3. Both A and B
4. None of these

Q. The term “cell” was coined by ___________.

[Review question: Pg. No: 66]

1. Robert Brown
2. Leeuwenhoek
3. Felici Fontana
4. Robert Hooke

Q.

Which of the following statement(s) is/are incorrect regarding prokaryotes?
(i) They lack a nucleus
(ii) Amoeba is prokaryotic
(iii) DNA in prokaryotes is generally circular
(iv) Prokaryotes are unicellular organisms

1. (i), (ii) and (iv)
2. (iv) only
3. (ii) only
4. (i) and (ii)

Q.

Life on Earth started from a single cell.

1. True

2. False

Q. An optical instrument used to observe small organism is called as_____________.

1. Microscope
2. Telescope
3. Magnifying lens
   
4. Both A and B
   

Q. Branch dealing with study of cell is

1. Histology
2. Cytology
3. Morphology
4. Anatomy.

Q.

Match the discoveries with the scientist who have made it.

$\begin{array}{cc}\text{Column I}& \text{Column II}\\ \text{a. Anton Van Leeuwenhoek}& \text{i. All animals are made of cells}\\ \text{b. Robert Hooke}& \text{ii. Father of microbiology}\\ \text{c. Theodor Schwann}& \text{iii. Cork has boxed structures}\\ \text{d. Matthias Schleiden}& \text{iv. All plants are made of cells}\end{array}$

1. a - iii, b - ii, c - iv, d - i

2. a - iii, b - i, c - iv, d - ii

3. a - ii, b - iii, c - i, d - iv

4. a - ii, b - i, c - iv, d - iii

Q. Why is the cell called the structural and functional unit of life? [2 Marks]

Q. The term “cell” was coined by ___________.

[Review question: Pg. No: 66]

Q. ___

is credited for dicovery of cell.

Q. Choose the option which correctly depicts the biological levels of organisation.

1. Cell $\to$ Organ $\to$ Tissue $\to$ Organ system $\to$Organism
2. Cell $\to$ Tissue $\to$ Organ system $\to$ Organ $\to$ Organism
3. Cell $\to$ Tissue $\to$ Organ $\to$ Organ system $\to$ Organism
4. Organ system $\to$ Organ $\to$ Tissue $\to$ Cell $\to$ Organism