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

  • plasmodesmata

  • Desmosomes

  • Gap junction

  • Tight junction

How many layers are present in cell envelope of prokaryotes?

  • 4

  • 3

  • 2

  • 1

Which of the following is the part of cell envelope?

  • glycocalyx

  • cell wall and cell membrane

  • Both A and B

  • 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 _________

  • slime layer, capsule

  • slime mould ,capsule

  • capsule, slime layer

  • capsule, slime mould

Which of the following is true about cell wall except

  • determines shape of the cell

  • prevent cell from bursting and collapsing

  • selective permeable in nature

  • provides strong structural support

Mesosomes extensions can be present in the form of

  • vesicles

  • tubules

  • lamellae

  • All of the above

Which of the following is true about chromatophores

  • its’s a plasma membrane infolding

  • site of photosynthesis

  • contain pigments

  • All of the above

Bacterial flagella is composed of

  • basal body, Hook, filament

  • basal body and filament

  •   Hook and filament,

  • Hook, filament and base

How many of the following structures are present in Bacteria?

(Flagella, cilia, pili, fimbriae)

(1)4

(2)3

(3)2

(4)1
  • 1
  • 2
  • 3
  • 4

Where can we find the ribosomes in Bacteria

  • In cytoplasm

  • In mitochondria

  • On Endoplasmic reticulum

  • All of these

Several ribosomes may attach to a single mRNA and form a chain called

  • Polyribosomes

  • polysomes

  • Both A and B

  • Polycistronic mRNA

In prokaryotes which of the following ribosome subunit is absent

  • 30s

  • 50s

  • 40s

  • 70s

Which of the following is true about ribosome except

  • site of protein synthesis

  • universal cell organelle

  • 70s is present only in prokaryotes

  • 80s is present in eukaryotes

Polysomes translate mRNA into

  • proteins

  • carbohydrates                                

  • DNA

  • RNA

Bacteria store their reserved food materials in

  • Vacuoles

  • Inclusion bodies                             

  • Both A and B

  • Sphaerosomes

Which of the following is true about Inclusion bodies

  • membraneless

  • present freely in cytoplasm           

  • store phosphate,glycogen

  • All of the above

How many of the following kingdoms are eukaryotic

(monera, protista, fungi, plante, Animalia)

(1)5

(2)4

(3)3

(4)2
  • 1
  • 2
  • 3
  • 4

Which of the following structures are present in plant cell but absent in animal cell?

  • plastids

  • centrioles                                       

  • large central vacuole

  • Both A and C

Which of the followings  are common to plant cell and animal cell?

(Peroxisome, nucleolus, lysosome, plasmodesmata, microvilli, microtubule)

(1)6

(2)5

(3)4

(4)3
  • 1
  • 2
  • 3
  • 4

Which of the following is true except

  • all eukaryotic cells are identical

  • eukaryotic cells possess an organised nucleus with a nuclear envelope

  • compartmentalisation is present in eukaryotes

  • All are correct

____________ ribosomes are present in eukaryotes while ________ribosomes are present in prokaryotes.

  • 70s, 80s

  • 80s, 70s

  • 80s,80s

  • 70s,70s

In 70S, S is

  • sedimentation coefficient

  • indirect measure of density and size

  • indirect measure of mass and size

  • Both A and B

Which of the following is true about ribosomes

  • It’s a membraneless structure

  • 70s and 80s are composed of 2 subunits

  • 70s is also present in chloroplast

  • All of these

Cytoskeleton comprises of

  • Microtubule

  • Microfilament

  • Intermediate filament

  • All of the these

Which of the following are the functions of cytoskeleton?

  • mechanical support

  • motility

  • maintenance of the shape of the cell

  • all of the above

Cilia and flagella are

  • microtubule

  • microfilament

  • intermediate filament

  • Both A and B

Which of the following is not true about cilia and flagella

  • Both help in locomotion

  • cilia is shorter and flagella is longer

  • Flagella works like Oars

  • hair-like outgrowths of the cell membrane

How many of the following structures are synthesised by microtubules?

Centrioles, basal body, cilia, flagella, spindle fibres

(1)5

(2)4

(3)3

(4)2
  • 1
  • 2
  • 3
  • 4

Which of the following is the structural and functional unit of bacterial flagella and cilia

  • axon

  • axoneme

  • flagellin

  • All of the above

Which of the following is true about axoneme except

  • It has nine doublets of peripheral microtubules

  • 2 centrally located microtubule

  • nine radial spokes

  • central sheath is absent

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