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

pathway?

1. Plasmodesmata

2. Plastoquinones

3. Endoplasmic rcticulum

4. Plasmalemma

Subtopic:  Cell Wall |
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Middle lamella is mainly composed of

1. hemicellulose

2. muramic acid

3. calcium pectate

4. phosphoglycerides

Subtopic:  Cell Wall |
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Which of the following cell wall comes early and disappears gradually in the life of plant?

(1)primary cell wall

(2)secondary cell wall

(3)tertiary cell wall

(4)Both A and B

Subtopic:  Cell Wall |
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Find out the incorrect statement

(1)   Middle lamella is mainly made up of Ca-pectate

(2)   Cell wall is formed from inner side therefore secondary wall formed before primary wall

(3)   Middle lamella glues the different neighbouringcells together

(4) Pits are present in secondary wall

Subtopic:  Cell Wall |
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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

Subtopic:  Cell Wall |
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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 

Subtopic:  Cell Wall |
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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

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

(1) Mathias Schleiden

(2) Theodore Schwann

(3) Rudolph Virchow

(4) Robert Hooke

Subtopic:  Cell Wall |
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Which of the following is not true of a eukaryotic cell?

1.  Cell wall is made up of peptidoglycans

2.  It has 80S type of ribosome present in the cytoplasm

3.  Mitochondria contain circular DNA

4.  Membrane bound organelles are present

Subtopic:  Cell Wall |
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