Question is ⇒ In eukaryotic cells, ribosomes are, Options are ⇒ (A) 70S, (B) 60S, (C) 80S, (D) Not specific, (E) , Leave your comments or Download question paper.

Question is ⇒ In eukaryotic cells, ribosomes are, Options are ⇒ (A) 70S, (B) 60S, (C) 80S, (D) Not specific, (E) , Leave your comments or Download question paper. Previous question Next question


Q1.	In eukaryotic cells, ribosomes are
A.	70S [Wrong Answer]
B.	60S [Wrong Answer]
C.	80S [Correct Answer]
D.	Not specific [Wrong Answer]
View Answer 1 -1 Explanation:- Answer : C Discuss it below : !! OOPS Login [Click here] is required to post your answer/result Help other students, write article, leave your comments

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⇒ The cell wall of
gram-positive bacteria are thicker than gram-negative bacteria
gram-negative bacteria are thicker than gram-positive bacteria
both have same thickness but composition is different
none of these

⇒ Teichoic acids are typically found in
cell walls of gram positive bacteria
outer membranes of gram positive bacteria
cell walls of gram negative bacteria
outer membranes of gram negative bacteria

⇒ The next to last step in peptidoglycan biosynthesis is
synthesis of the NAM-peptide subunit
removal of the subunit from bactoprenol
linking the sugar of the disaccharide-peptide unit to the growing peptidoglycan chain
cross-linking the peptide side chains of peptidoglycan

⇒ Which of the following bacteria lack a cell wall and are therefore resistant to penicillin?
Cyanobacteria
Mycoplasmas
Bdellovibrios
Spirochetes

⇒ Which of the following organism has sterols in their cytoplasmic membrane?
Clostridum
Proteus
Mycoplasma
Bacillius

⇒ Peptidoglycan is also known as
N-acetyl muramic acid
murein mucopeptide
N acetylglucosamine
mesodiaminopimetic acid

⇒ The structure responsible for motility of bacteria is
pilli
flagella
sheath
capsules

⇒ The last step in synthesis of peptidoglycan is
attachment of a peptide to muramic acid
attaching two amino acids to form a cross-link
attachment of a portion of peptidoglycan to a membrane lipid
binding of penicillin to a membrane protein

⇒ The location where the bacterial chromosome concentrates is called
nucleus
nuclein
nucleoid
nucleose

⇒ The protein from which hook and filaments of flagella are composed of, is
keratin
flagellin
gelatin
casein

⇒ Peptidoglycan accounts for __________ of the dry weight of cell wall in many gram positive bacteria
50% or more
About 10%
11%+ 0.22%
About 20%

⇒ Peptidoglycan is found only in the bacterial
cell membrane
glycocalyx
cell wall
spore

⇒ Periplasm is
the area between the inner and outer membranes of gram-negative bacteria
the area between the inner and outer membranes of Gram-positive bacteria
the interior portion of mitochondria
the area outside the cell membrane that is influenced by the polymers

⇒ Which of the following may be most likely to be missing from a gram-positive bacterium?
Penicillin binding protein
Peptidoglycan
Lipopolysaccharide
Phospholipid bilayer membrane

⇒ Genetic system is located in the prokaryotes in
nucleoid
chromatin
nuclear material
all of these

⇒ Cyanobacteria have
a gram-positive cell wall
a gram-negative cell wall
Neither (a) nor (b)
No cell wall

⇒ Which is most likely to be exposed on the surface of a gram-negative bacterium?
Pore protein (porin)
Protein involved in energy generation
Lipoteichoic acid
Phospholipids

⇒ Name the component of flagellum.
Filament
Hook
Basal body
All of these

⇒ The common word for bacteria which are spherical in shape is
cocci
bacilli
spirilla
pleomorphic

⇒ Gram positive cells have a
second outer membrane that helps to retain the crystal violet stain
multiple layer of peptidoglycan that helps to retain the crystal violet stain
thick capsule that traps the crystal violet stain
periplasmic space that traps the crystal violet

⇒ In which of the following, lipo-polysaccharide is a major constituent of outer membrane of the cellwall?
Gram-positive bacteria
Gram-negative bacteria
Fungi
None of these

⇒ Which of the following does not contain protein?
Pili
Flagellum
Lipoteichoic acid
Porin

⇒ The cooci which mostly occur in single or pairs are
Streptococci
Diplococci
Tetracocci
None of these

⇒ The other name for peptidoglycan is
mucopeptide
murein
both (a) & (b)
none of these

⇒ Chemotaxis is a phenomenon of
swimming away of bacteria
swimming towards a bacteria
swimming away or towards of bacteria in presence of chemical compound
none of the above

⇒ The cocci which forms a chain is
Streptococci
diplococci
Staphylococci
Tetracocci

⇒ Which of the following has Chinese letter arrangement?
Bacillus anthracis
Mycobacterium tuberculosis
Clostridium tetani
Corynebacterium diphtheriae

⇒ Chemically the capsule may be
polypeptide
polysaccharide
either (a) or (b)
none of these

⇒ Single or clusters of flagella at both poles is known as
monotrichous
petritrichous
amphitrichous
none of these

⇒ The cell walls of many gram positive bacteria can be easily destroyed by the enzyme known as
lipase
lysozyme
pectinase
peroxidase