Discovery of Cell

Q.

Who discovered the microscope?

Q.

What is the study of cells called?

Q.

Question 1
Who discovered cells and how?

Q.

State and explain any 4 exceptions to cell theory. (Each 2 marks)

Q.

What is electron microscope ?

Q.

What is light microscope ?

Q.

Mention differences between light microscope and electron microscope

Q.

Who discovered nucleus?

Q.

Lysosomes were discovered by ___

1. Schimper

2. Christian de Duve

3. Wagner

4. None of the above

Q.

Who used the word protoplast for the first time for living cells?

Q.

How many cells do humans have?

Q.

Match the discoveries with the scientists who have made it.

$\begin{array}{cc}ColumnI& ColumnII\\ a.AntonVanLeeuwenhoek& i.Allanimalsaremadeofcells\\ b.RobertHooke& ii.Microscope\\ c.TheodorSchwann& iii.Corkhasstructureslikecell\\ d.MatthiasSchleiden& iv.Allplantsaremadeofcells\end{array}$

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

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. Robert Hooke coined the term “cell” after observing _______ cells under a microscope.

1. muscle
2. embryo
3. cork
4. stomata

Q.

The phrase Omnis-cellula-e-cellula was given by

1. Virchow

2. Hooke

3. Leeuwenhoek

4. Brown

Q. Write the contribution of a) Robert Hooke b)Leeuwenhoek c) Robert Brown.

Q. Robert Hooke termed the compartments in the piece of cork as .

1. cells
2. atoms
3. molecules

Q.

Robert Hooke first observed cells in 1665. Which of the following diagram describes his observation accurately?

1. None of the above

2. 

3. 

4. 

Q. Name the following:
(i) Any two one-celled organisms.

Q.

The cell theory was proposed by two biologists, ______ and ________ .

1. Schleiden, Robert Hooke

2. Schwann, Robert Hooke

3. Schleiden, Schwann

4. Robert Hooke, Rudolph Virchow

Q. Name the scientist who discovered cells for the first time.

Q. Which of the following organisms do not have a well defined nucleus?

1. E.coli
2. Archaea
3. Lactobacillus
4. Amoeba
5. Pseudomonas
6. Salmonella.typhi
7. Fungi
8. Protists

Q.

Name the scientist who discovered the nucleus.

Q.

Identify the error(s) in the given statements.
Antonie van Leeuwenhoek was the first one to discover and name a cell.

Q. difference between electron and compound microscope(atleast 5 points each)

Q.

Who made the famous statement 'Cells arise from pre-existing cells'.

1. Haeckel

2. Virchow

3. Schleiden

4. Hooke

Q. Who discovered the microscope which makes use of electrons for its working?

1. Robert Hookes
2. Ernst Ruska
3. Charles Darwin
4. Anton Van

Q.

What is the unit of measurement of cell?

Q.

Who discovered cells and how ?

Q. Why was the invention of a microscope important for the study living begins?

Q.

The cell nucleus was discovered by

1. Robert Hooke

2. Robert Brown

3. A.V. Leeuwenhoek

4. Virchow