Cell Theory

Q.

What are the 3 principles of cell theory?

Q.

Ribosomes are attached to the endoplasmic reticulum through a glycoprotein known as Ribophorin I and II. Which subunit of ribosomes gets attached to the endoplasmic reticulum?

1. Large subunit

2. Small subunit

3. tRNA

4. mRNA

Q.

Which of the following is not a postulate of the cell theory?

1. All cells develop from pre-existing cells.

2. All living organisms are composed of cells.

3. All living cells have cell walls.

4. Cell is the basic unit of life.

Q. Where did the first cell come from?

Q.

Do all cells have a cell membrane?

Q.

How many cells are there in our body

Q.

Life of every human being starts with a single cell.

1. False

2. True

Q.

What is Omnis cellula-e-cellula?

Q. What is the meaning of omnis cellula e cellula

Q. What is cell? Scientific definition.

Q. How did scientists count the number of cells in an average human body?

Q.

Fill in blanks in the given flowchart which depicts the correct hierarchy of cellular organisation.

1. (i) Cell Organelles, (ii) Organ System

2. (i) Organ System, (ii) Tissues

3. (i) Tissues, (ii) Cell Organelles

4. (i) Tissues, (ii) Organ System

Q. What is cell theory? Who were the scientists who discovered it?

Q.

Question 30
What are the functions of cell wall in plant cells?

Q.

Cell theory states that _____ are made up of cells.

1. all living things

2. only animals

3. only plants

4. all things in the universe

Q.

What is the cell theory? Who proposed it? [5 MARKS]

Q. Which one of the following statements is true about Rudolph Virchow?

1. He was the first to observe live bacterial cells under a microscope.
2. He stated that all cells arise from pre-existing cells.
3. He stated that cells are the fundamental unit of life.
4. He coined the term 'cells'.

Q. State the postulates of the cell theory.

Q. Every human being starts with just one cell.

1. True
2. False

Q.

Expain Cell Theory?

Q. "New cells arise from pre-existing cell" is the statement given by

1. Max Schultze
2. R. Virchow
3. Altmann
4. Purkinje

Q. Is cell a 3d or 2d object ?

Q.

Which of the following is/are not the postulate(s) of the cell theory?

1. Cell is the smallest unit of structure of all living things.

2. Cell is the unit of function of all living things.

3. Cells can be made in the lab with some chemicals.

4. Some living organisms are not made up of cells.

Q.

What are the main points of cell theory?

Q. Which of the following statements is not a part of the cell theory?

1. All living beings are made up of one or more cells.
2. All cells arise by division of pre-existing cells.
3. Cells are the basic structural and functional units of life.
4. All cells are surrounded by cell wall.

Q. Every human being starts with just one cell.

1. True
2. False

Q.

Assertion [A]: Rudolf Virchow modified the theories given by ​Schleiden and Schwann.​

Reason [R]: Cell theory states that all cells arise from the pre-existing cells.​

Q. Which of the following statement is NOT a part of cell theory?

1. Cell is the basic unit of life.
2. All cells arise from pre-existing cells.
3. All living cells have cell walls.
4. All living organisms are composed of cells.

Q. Every human being starts with just one cell.

1. True
2. False

Q. Cell theory was established in

1. 1838
2. None of these
3. 1839
4. Both A and B