The cytoplasmic connections from cell to cell are known as
  • middle lamella
  • plasmodesmata
  • cell membrane system
  • endoplasmic reticulum
Fimbriae – D. filamentous protein structure
  • 1-D, 2-A, 3-B, 4-C
  • 1-D, 2-C, 3-B, 4-A
  • 1-B, 2-D, 3-A, 4-C
  • 1-D, 2-A, 3-C, 4-B
Which one of the following also acts as a catalyst in a bacterial cell?
  • 23 sr RNA
  • 5 sr RNA
  • sn RNA
  • hn RNA
Centrosome is found in-
  • Cytoplasm
  • Nucleus
  • Chromosomes
  • Nucleolus
Plasma membrane is
  • impermeable
  • semi-permeable
  • completely permeable
  • differentially permeable
Middle lamella is made up of ___________.
  • calcium sulphide
  • calcium pectate
  • calcium carbonate
  • calcium chloride
Match the columns.
Cytoskeleton – A. hair-like outgrowth
Flagella – B. proximal region of centriole
Hub – C. bristle-like structures
Fimbriae – D. filamentous protein structure
  • 1-D, 2-A, 3-B, 4-C
  • 1-D, 2-C, 3-B, 4-A
  • 1-B, 2-D, 3-A, 4-C
  • 1-D, 2-A, 3-C, 4-B
Which of the following does not have cell wall?
  • Mycoplasma
  • Bacteria
  • PPLO
  • Blue green algae
The longest cell in human body is
  • red blood cells
  • white blood cells
  • columnar epithelial cells
  • nerve cells
The main site for synthesis of lipids is
  • vacuoles
  • RER
  • SER
  • Golgi body
The function of ribosomes is
  • metabolism
  • lipid synthesis
  • protein synthesis
  • photosynthesis
Which is called Suicidal Bag?
  • Centrosome
  • Lysosome
  • Mesosome
  • Chromosome
A nucleosome is a portion of the chromonema containing ______.
  • both DNA and histones
  • only histones
  • both DNA and RNA
  • only DNA
The largest cell in the human body is-
  • Nerve cell
  • Muscle cell
  • Liver cell
  • Kidney cell
Keeping in view the fluid mosaic model for the structure of cell membrane, which one of the following statements is correct with respect to the movement of lipids and proteins from one lipid monolayer to the other (described as flip-flop movement)?
  • Neither lipids, nor proteins can flip-flop
  • Both lipids and proteins can flip-flop
  • While lipids can rarely flip-flop, proteins can not
  • While proteins can flip-flop, lipids can not
Cell secretion is done by-
  • Plastids
  • ER
  • Golgi apparatus
  • Nucleolus
___________ increases the surface area for mitochondrial activity.
  • Inner membrane
  • Inter membrane space
  • Matrix
  • Cristae
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