Which of the following connects the cell wall of the neighbouring cells?

(1)plasmodesmata

(2)Desmosomes

(3)Gap junction

(4)Tight junction

How many layers are present in cell envelope of prokaryotes?

(1)4

(2)3

(3)2

(4)1

Which of the following is the part of cell envelope?

(1)glycocalyx

(2) cell wall and cell membrane

(3)Both A and B

(4)Glycocalyx and cell wall

If glycocalyx is loose then it is called as ____________and if it’s tough and thick then it is called as _________

(1)slime layer, capsule

(2)slime mould ,capsule

(3)capsule, slime layer

(4)capsule, slime mould

Which of the following is true about cell wall except

(1)determines shape of the cell

(2)prevent cell from bursting and collapsing

(3)selective permeable in nature

(4)provides strong structural support

Mesosomes extensions can be present in the form of

(1)vesicles

(2)tubules

(3)lamellae

(4)All of the above

Which of the following is true about chromatophores

(1)its’s a plasma membrane infolding

(2)site of photosynthesis

(3)contain pigments

(4)All of the above

Bacterial flagella is composed of

(1)basal body, Hook, filament

(2) basal body and filament

(3)  Hook and filament,

(4)Hook, filament and base

Which of the following is true

(1)bacterial flagella is made up of flagellin protein

(2)bacterial pili is made up of pilin protein

(3) bacterial flagella is different from eukaryotic flagella

(4)All of the above

How many of the following structures are present in Bacteria?

(Flagella, cilia, pili, fimbriae)

(1)4

(2)3

(3)2

(4)1