Quiz 4. Cell - Basic Unit Of Life

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It include Structural Organisation of Prokaryotic Cells - Part 2

Name *

1 point

Which of the following represents prokaryotic cells ? *

1 point

PPLO, Diatoms, Mycoplasma, Bacteria

PPLO, Blue Green Algae, Mycoplasma, Bacteria

PPLO, Blue Green Algae, Mycoplasma, slime moulds

Blue Green Algae, Mycoplasma, Bacteria, microbes

Which of the bacterial structure does not paly role in motility ?

a. Flagella

b. Pilli

c. Fimbriae

1 point

Only a

only a and b

Only b and c

All a, b, c

Which of the following is correct regarding mesosome except ? *

1 point

They can be in the form of tubules, vesicle and lamellae

They contains photosynthetic pigments

They are essentially infoldings of plasma membrane

They help in DNA replication and distribution to daughter cells

Match the organelles with their functions *

4 points

Prevent from bursting or collapsing

Help in respiration

Help in attachment

Contains pigments

Help in protein synthesis

Fimbriae

Mesosomes

Chromatophores

Cell wall

Which of the following is not the function of mesosome? *

1 point

Help in DNA replication and distribution to daughter cells

Help in cell slime layer formation

Help in respiration

Help in secretion process

Find incorrect statements regarding cell envelop in prokaryotic cells *

1 point

The cell envelope consists of a tightly bound three layered structure

Cell wall could be a loose sheath called the slime layer

The cell wall determines the shape of the cell

The plasma membrane is selectively permeable

Glycocalyx is outermost layer

When glycocalyx is thick and tough then it is called ........... and when it is loose the it is called ........... *

1 point

Slime layer, capsule

Cell wall, slime layer

Capsule, slime layer

Plasmalemma, capsule

During staining which is correct ? *

1 point

All bacteria take crystal violet stain

Gram+ bacteria take crystal violet stain

Gram- bacteria take crystal violet stain

All are incorrect

Gram staining differentiates bacteria into gram+ from Gram- by chemical and physical properties of *

1 point

Cell wall

Cell membrane

Ribosome

Mesosome

Select the wrong statement.... *

1 point

Mycoplasma are wall less micro-organism

Fimbriae and pilli are mainly involved in motility

Bacterial cell wall is made of peptidoglycan

Ribosomes are present in prokaryotic cells

Which of these not found in bacterial cell? *

1 point

Cillia

Flagella

Pilli

Fimbriae

Several ribosomes may attach a single mRNA to form a chain which is called as ? *

1 point

a Poly ribosome

b Polysome

c Mesosome

Both a and b

In prokaryotic cells which of these is not present with regards to ribosome ? *

1 point

30 S

50 S

40 S

70 S

Bacteria store reserve food materials in *

1 point

Vacoules

Inclusion body

Sphaerosome

Non of these

Match both column *

4 points

DNA replication

Store starch

Contain pigments

Store glycogen

Cyanophycean granules

Glycogen granules

Mesosome

Chromatophores

Which is/are true about inclusion bodies *

1 point

These are not bound by any membrane system

They lie free in the cytoplasm

Reserve material in prokaryotic cells are stored in inclusion bodies

All are correct

Which is substitution of mitochondria in prokaryotic cells ? *

1 point

Mesosome

Polysome

Chromatophores

Cyanophycean granules

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