Cell Theory

Q.

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

1. The cell is the basic unit of life.

2. All living organisms are composed of cells.

3. All living cells possess a cell wall.

4. All cells develop from preexisting cells.

Q.

Which of the following is/are not the points of the cell theory?

1. The cell is the smallest unit of structure of all living things.

2. The cell is the unit of function of all living things.

3. Cells do not arise from pre-existing cells.

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

Q.

The cell is the ___ and ___ unit of life.

1. Structural

2. Functional

3. Chemical

4. Genetic

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

Q. Which of the following statement(s) is/are correct?

1. Prokaryotes do not have a definite nucleus.
2. Eukaryotes have membrane-bound cell organelles.
3. Prokaryotes are larger than eukaryotes.
4. Prokaryotes do not have cytoplasm.

Q.

Cells with a well defined nucleus are called _____A____ and without well-defined nucleus are called ____B____ .

1. A: unicellular B: multicellular
2. A: prokaryotic B: eukaryotic
3. A: multicellular B: unicellular
4. A: eukaryotic B: prokaryotic

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

Q. Lesser number of cells affect the functioning of an organism.

1. True
2. False

Q. Lesser number of cells affect the functioning of an organism.

1. True
2. False

Q. ___ is the jelly-like substance between the nucleus and the cell membrane.

1. Ribosome
2. Vacuole
3. Cytoplasm
4. Mitochondria