Consider the given statements:
Statement I: Anton von Leeuwenhoek first saw and described a live cell and Robert Brown discovered nucleus.
Statement II: The invention of electron microscope revealed all the structural details of the cell.
 
1. Statement I is correct and Statement II is incorrect
2. Both Statement I and Statement II are correct but Statement II does not explain Statement I
3. Both Statement I and Statement II are correct and Statement II correctly explains Statement I
4. Only Statement II is correct

Subtopic:  Cell Theory |
 61%
From NCERT
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints
To view explanation, please take trial in the course.
NEET 2025 - Target Batch

A Prokaryotic cell lacks:
I: a membrane bound nucleus
II: membrane bound organelles
III: ribosomes
1. Only I and II 2. Only I
3. Only II and III 4. Only III
Subtopic:  Prokaryotic Cell Organisation |
 89%
From NCERT
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints
To view explanation, please take trial in the course.
NEET 2025 - Target Batch

Ribosomes are:
I: bound by a single membrane only
II: found in all cells – both eukaryotic as well as prokaryotic
III: found in cytoplasm as well as chloroplasts, mitochondria and on RER
 
1. Only I and II 2. Only I and III
3. Only II and III 4. I, II and III
Subtopic:  Ribosome and Inclusion Bodies |
 73%
From NCERT
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints
To view explanation, please take trial in the course.
NEET 2025 - Target Batch

advertisementadvertisement

Centrosome:
1.  is a non- membrane bound organelle found in all cells which helps in cell division
2. is a non- membrane bound organelle found in plant cells which helps in cell division
3. is a non- membrane bound organelle found in animal cells which helps in DNA replication
4. is a non- membrane bound organelle found in animal cells which helps in cell division
Subtopic:  Centrosomes |
 82%
From NCERT
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints
To view explanation, please take trial in the course.
NEET 2025 - Target Batch

Identify the incorrectly matched pair regarding shape of bacterial cells:
1. Bacillus Rod shaped
2. Coccus Spherical
3. Vibrio Icosahedral
4. Spirillum Spiral
Subtopic:  Bacterial Staining & Shape |
 96%
From NCERT
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints
To view explanation, please take trial in the course.
NEET 2025 - Target Batch

A bacterial cell has
1. a single chromosome and circular DNA
2. multiple chromosomes and circular DNA
3. a single chromosome and linear DNA
4. multiple chromosomes and liner DNA
Subtopic:  Prokaryotic Cell Organisation |
 84%
From NCERT
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints
To view explanation, please take trial in the course.
NEET 2025 - Target Batch

advertisementadvertisement

Identify the correct statement regarding the cell envelope of a prokaryotic cell:
I: The outermost layer of the cell envelope is called as the glycocalyx which may be present as a loose sheath called the slime layer or a thick and tough capsule.
II: The cell wall determines the shape of the cell and provides a strong structural support to prevent the bacterium from bursting or collapsing.
III: Plasma membrane is selectively permeable in nature and interacts with the outside world.
IV: Bacterial cells can be classified as Gram positive and Gram negative based on the staining properties of their plasma membrane.
 
1. All except IV 2. Only I and II
3. I, II, III and IV 4. Only II, III and IV
Subtopic:  Details of Prokaryotic Cell Structure |
From NCERT
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints
To view explanation, please take trial in the course.
NEET 2025 - Target Batch

A polysome is:
1. several mRNA molecules attached to a ribosome
2. several ribosomes attached to a single mRNA
3. the three major types of cellular RNAs attached to an mRNA molecule
4. many ribosomes attached to the surface of endoplasmic reticulum
Subtopic:  Ribosome and Inclusion Bodies |
 89%
From NCERT
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints
To view explanation, please take trial in the course.
NEET 2025 - Target Batch

Identify the correct statement(s) regarding the structure of a typical cell membrane:
I: The lipid component mainly consists of phosphoglycerides.
II: Peripheral proteins are either lying on the surface of the membrane or partially buried in it.
III: Carbohydrates are not a component of cell membrane.
IV: Cholesterol is a lipid and is a part of the cell membranes of animal cells.
 
1. Only I 2. II and III only
3. I and IV only 4. II and IV only
Subtopic:  Cell Membrane |
 62%
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints

advertisementadvertisement

The middle lamella of a typical plant cell:
I: mainly consists of calcium carbonate
II: holds or glues the different neighbouring cells together
III: is not traversed by plasmodesmata
 
1. Only II is correct
2. Only I is incorrect
3. I, II and III are incorrect
4. Only II and III are correct
Subtopic:  Cell Wall |
 66%
From NCERT
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints
To view explanation, please take trial in the course.
NEET 2025 - Target Batch