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Free download in PDF Endoplasmic Reticulum Objective Type Questions and Answers for competitive exams. These short objective type questions with answers are very important for Board exams as well as competitive exams like JIPMER, NEET, AIIMS etc. These short solved questions or quizzes are provided by Gkseries.
(21)
What are Singer and Nicolson known for?
[A]
One-gene-one-enzyme hypothesis
[B]
Plasma membrane modifications
[C]
Fluid-mosaic model of plasma membrane
[D]
Structure of DNA
Answer: Fluid-mosaic model of plasma membrane
(22)
Three of the following statements regarding cell organelles are correct while one is wrong. Which
one is wrong?
[A]
Lysosomes are double membraned vesicles budded off from Golgi apparatus and contain digestive enzymes
[B]
Endoplasmic reticulum consists of a network of membranous tubules and helps in transport, synthesis and secretion
[C]
Leucoplasts are bound by two membranes, lack pigment but contain their own DNA and protein synthesizing machinery
[D]
Sphaerosomes are single membrane bound and are associated with synthesis and storage of lipids
Answer: Lysosomes are double membraned vesicles budded off from Golgi apparatus and contain digestive enzymes
(23)
Which of the following organelles has a continuous connection with nuclear membrane
[A]
Golgi apparatus
[B]
Lysosome
[C]
RER
[D]
SER
(24)
SER is involved in
[A]
Phospholipid biosynthesis and detoxification reaction
[B]
Phospholipid biosynthesis and protein synthesis
[C]
Protein synthesis
[D]
Phospholipid biosynthesis
Answer: Phospholipid biosynthesis and detoxification reaction
(25)
SER in the retinal cells are called as
[A]
Sarcoplasmic reticulum
[B]
Retinal reticulam
[C]
Myeloid bodies
[D]
All of these
(26)
The transport of secretory proteins takes place trough organelles in the order
[A]
RER->SER->golgi-> secretory vescicles
[B]
SER->RER->golgi-> secretory vescicles
[C]
RER->SER-> secretory vescicles -> golgi
[D]
RER->golgi->SER-> secretory vescicles
Answer: RER->SER->golgi-> secretory vescicles
(27)
RER is involved in the synthesis of
[A]
Membrane proteins and secretory proteins
[B]
Different proteins of the cell
[C]
Membrane proteins, secretory proteins and lysosomal proteins
[D]
Membrane proteins and secretory proteins and nuclear proteins
Answer: Membrane proteins and secretory proteins
(28)
Extranuclear genes occurs in
[A]
plastids and are not inherited
[B]
plasmid and are not inherited
[C]
mitochondria and are inherited by female
[D]
All of these
Answer: mitochondria and are inherited by female
(29)
Some Gram -ve bacteria have peptidoglycan and an extra layer of
[A]
lipo-polysaccharide
[B]
teichoic acid
[C]
cellulose
[D]
both (b) and (c)
Answer: lipo-polysaccharide
(30)
Plasmodesmata connections help in
[A]
cytoplasmic streaming
[B]
synchronous mitotic divisions
[C]
locomotion of unicellular organism
[D]
movement of substances between cells
Answer: movement of substances between cells
31
Endoplasmic reticulum membrane which is associated with ribosomes is called_______
[A]
ER lumen
[B]
Smooth endoplasmic reticulum
[C]
Rough endoplasmic reticulum
[D]
Endosome
Answer: Rough endoplasmic reticulum
32
Which of the following is not the function of Glycosylation?
[A]
Helps in proper folding of the protein
[B]
Confer stability in proteins
[C]
Synthesis of membrane lipid
[D]
None of the above
Answer: Synthesis of membrane lipid
33
Name the sequence which allows the resident protein to retain in ER lumen?
[A]
KDEL
[B]
KKXX
[C]
KLDE
[D]
KXXK
34
Which of the following coated vesicle transport protein from ER to Golgi?
[A]
Clathrin
[B]
COP II
[C]
COP I
[D]
All of these
35
Name the coated vesicle which is used to transfer protein from plasma membrane to endosome?
[A]
Clathrin
[B]
COP I
[C]
COP II
[D]
none of these
36
The term ‘endoplasmic reticulum’ was coined by
[A]
Reinert
[B]
Porter
[C]
Pomaret
[D]
Johnson
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