Choose incorrect statement

1.  Leeuwenhoek first saw and described a living cell

2.  Robert Brown discovered cell

3.  Electron microscope revealed all the structural details of cell

4.  A large cell has a higher volume: surface ratio than a smaller cell 

Subtopic:  Introduction to Cell |
 83%
From NCERT
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Find out the incorrect match

1.  Lysosome                 -  Intracellular scavenging

2.  Golgi complex           -  Metabolism of xenobiotics

3.  Elaioplast                  -  Oil and fat storage

4.  Glyoxysomes             -  Gluconeogenesis

 

Subtopic:  Golgi Apparatus |
 71%
From NCERT
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Which of the following synthesizes proteins for export?

1.  Free ribosomes

2.  SER

3.  Lysosome

4.  RER 

Subtopic:  Endomembrane System (Endoplasmic Reticulum) |
 76%
From NCERT
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For the fluid mosaic model of membrane given by Singer and Nicolson, which of the following conditions are not associated?

1.  Lipids enable the lateral movement of proteins in the membrane

2.  Fluid nature of membrane helps in secretion

3.  Lipids can show flip flop movement from one layer of membrane to other 

4.  The fluidity of membrane is mainly due to oligosaccharides 

Subtopic:  Cell Membrane |
 59%
From NCERT
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Select the incorrect statement(s)  with respect to functions of various cellular components

a.  Middle lamella works as glue to hold the adjacent cells together.

b.  Mitochondria, chloroplast and vacuoles are part of the endomembrane system as their functions are coordinated.

c.  Lipoidal steroid hormones are synthesized by ER component which is not associated to 80 S ribosomes.

1.  Only b

2.  Only a

3.  Both a and c

4.  Both b and c 

Subtopic:  Cell Wall | Endomembrane System |
 53%
From NCERT
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Select the correct match

1.  70 'S' ribosome         -    Bacterial mesosome

2.  Cytoskeleton             -    Lipoproteins

3.  Kinetochore                -    Centromere

4.  Lysosome                  -   Catalase

 

Subtopic:  Nucleus: Chromosomes |
 71%
From NCERT
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Thin, amorphous, and cementing layer between two adjacent cells, is

1. Primary wall

2. Middle lamella

3. Secondary wall

4. Plasma membrane 

Subtopic:  Cell Wall |
 92%
From NCERT
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Both chloroplast and mitochondria show similarity in

1. Presence of DNA with more AT

2. Presence of 70s ribosome

3. Presence of porins

4. More than one option is correct

Subtopic:  Plastids | Mitochondria |
 64%
From NCERT
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Choose incorrect match

1.  Chloroplast   -   Thylakoid

2.  Golgi bodies  -   Cristae

3.  Mitochondria  -  Oxisome

4.  Centriole       -   Microtubules 

Subtopic:  Golgi Apparatus |
 67%
From NCERT
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How many microtubules are associated with the structure of centriole?

1. 11

2. 18

3. 20

4. 27

Subtopic:  Centrosomes |
 54%
From NCERT
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