Which one is incorrect

(1)Mycoplasmas are greater than bacteria

(2)largest isolated cell is ostrich egg

(3)Nerve cells are longest cells

(4)The shape of the cell may vary with  the function they perform

Nerve cell is

(1) largest and branched

(2) longest and branched

(3) longest and unbranched

(4) largest and unbranched

Cell envelope in bacteria consists of 

1.  Plasma membrane only 

2. Plasma membrane and mesosome 

3. Glycocalyx only 

4. Glycocalyx, cell wall and plasma membrane

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 

Find out the incorrect match

1.  Lysosome                 -  Intracellular scavenging

2.  Golgi complex           -  Metabolism of xenobiotics

3.  Elaioplast                  -  Oil and fat storage

4.  Glyoxysomes             -  Gluconeogenesis

Which of the following synthesizes proteins for export?

1.  Free ribosomes

2.  SER

3.  Lysosome

4.  RER 

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 

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 

Select the correct match

1.  70 'S' ribosome         -    Bacterial mesosome

2.  Cytoskeleton             -    Lipoproteins

3.  Kinetochore                -    Centromere

4.  Lysosome                  -   Catalase

Thin, amorphous, and cementing layer between two adjacent cells, is

1.  Primary wall

2.  Middle lamella

3.  Secondary wall

4.  Plasma membrane