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

1. Primary wall

2. Middle lamella

3. Secondary wall

4. Plasma membrane 

Which one of the following structures between two adjacent cells is an effective transport

pathway?

Middle lamella is mainly composed of

1. hemicellulose

2. muramic acid

3. calcium pectate

4. phosphoglycerides

Which of the following cell wall comes early and disappears gradually in the life of plant?

Find out the incorrect statement

Mark the incorrect statement related to cell wall 

(a) Non-living rigid structure
(b) Present in fungi and plants
(c) Provides barriers to undesirable macromolecules
(d) Primary wall is capable of growth
(e) Primary wall gradually diminishes as the cells matures

1. a, b, d

2. d only

3. c, d

4. All statements are correct

Find the incorrect statement

1.  Middle lamella is mainly made up of calcium and magnesium pectate

2.  Cell wall is formed on the inner side of the cell therefore secondary wall formed first

3.  Middle lamella glues the neighbouring cells together

4.  Cell wall helps in cell to cell interaction and provides barrier to undesirable macromolecules 

Algae have cell wall made up of

1. cellulose, galactans and mannans

2. hemicellulose, pectins and proteins

3. pectins, cellulose and proteins

4. cellulose, hemicellulose and pectins

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

Which of the following is not true of a eukaryotic cell?