Who concluded, based on his studies on plant tissues, that the presence of cell wall is a unique character of plant cells?

1. Matthias Shcleiden 2. Theodore Schwann
3. J. B. S. Haldane 4. Rudolph Virchow

Subtopic:  Cell Theory |
 68%
From NCERT

To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.

Hints

To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.


The famous aphorism ‘omniscellula-e-cellula’ was added to the cell theory in 1855 by

1. Matthias Shcleiden 2. Theodore Schwann
3. J. B. S. Haldane 4. Rudolph Virchow
Subtopic:  Introduction to Cell |
 94%
From NCERT

To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.

Hints

To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.


Ribosomes are non-membrane bound organelles found in:
1. All prokaryotic cells only
2. All eukaryotic cells only
3. All somatic cells in eukaryotic organisms only
4. All cells

Subtopic:  Ribosome and Inclusion Bodies |
 90%
From NCERT

To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.

Hints

To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.


A non-membrane bound organelle found in animal cells that helps in cell division would be:

1. Centromere 2. Centrosome
3. Basal body 4. Fimbriae
Subtopic:  Centrosomes |
 76%
From NCERT

To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.

Hints

To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.


A ‘comma’ shaped bacterium is known as a:

1. Bacillus
2. Coccus
3. Vibrios
4. Spirillum

Subtopic:  Introduction to Cell |
 88%
From NCERT
Please attempt this question first.
Hints
Please attempt this question first.

The genomic DNA of a bacterial cell is:

1. circular and located on a single chromosome
2. circular and located on multiple chromosomes
3. linear and located on a single chromosome
4. linear and located on multiple chromosomes

Subtopic:  Introduction to Cell |
 75%
From NCERT

To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.

Hints

To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.


Extra-chromosomal circular double stranded and autonomously replicating DNA found in many bacteria is known as:

1.Plastid2.Genophore
3.Plasmid4.Genome

Subtopic:  Nucleus | Nucleus: Chromosomes |
 80%
From NCERT

To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.

Hints

To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.


A ‘slime layer’ or a ‘capsule’ is a modification of which of the following layers of the cell envelope of a prokaryotic cell?

1. Glycocalyx 2. Cell wall
3. Lipoprotein layer 4. Cell membrane
Subtopic:  Cell Wall |
 89%
From NCERT

To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.

Hints

To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.


Mesosomes, extensions of plasma membrane in bacterial cells, help in all the following except:

1. Cell wall formation
2. DNA replication and distribution to daughter cells
3. Respiration
4. Photosynthesis

Subtopic:  Cell Membrane |
 78%
From NCERT

To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.

Hints

To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.


A basal body is a part of bacterial:

1. Inclusion bodies 2. Chromosomal DNA
3. Flagellum 4. Plasmid
Subtopic:  Cilia & Flagella |
 84%
From NCERT

To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.

Hints

To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.