The scientist Rudolf Virchow proposed extension of cell theory in

  • 1842
  • 1868
  • 1855
  • 1895

If one small cube is 600µm2 then the surface area of 30 small cubes is

  • 28000µm2
  • 15000µm2
  • 18000µm2
  • 19000µm2

The functions of lysosomes consists of

  • breakdown of food only
  • elimination of waste materials only
  • formation of fibers
  • breakdown of food and elimination of waste materials

The types of meristematic tissues in plants includes

  • apical meristems only
  • transverse meristems only
  • lateral meristems
  • apical and transverse meristems

The chromosomes are made up of

  • carbohydrates
  • protein
  • Ribonucleic acid (RNA)
  • Deoxyribonucleic Acid (DNA)

The common chemical of secondary walls of xylem cells is

  • amino acids
  • peptidoglycan
  • chitin
  • lignin

The magnification of light microscope is

  • 1500X
  • 2000X
  • 1000X
  • 2500X

The diameter range of cells is

  • 0.1µm to 2.0µm
  • 0.1µm to 1.0µm
  • 0.2µm to 2.5µm
  • 0.3µm to 10.0µm

The cells that have thick walls for the conduction of support and water are

  • meiotic cells
  • xylem cells
  • passive cells
  • nerve cells

The scientist Mathias Schleiden studied plant tissues in

  • 1838
  • 1849
  • 1865
  • 1879

The meristematic tissues and permanent tissues are types of

  • endoplasmic tissues
  • phloem tissues
  • simple tissues
  • xylem tissues

The name of the scientist who proposed extension of cell theory is

  • Robert Bentley
  • Rudolf Virchow
  • David Bellamy
  • Thomas Bell

Two glass lenses are used in

  • compound microscope
  • light microscope
  • electron microscope
  • simple microscope

The meristems that are located on lateral sides of shoot and roots are called

  • cutin meristems
  • lateral meristems
  • vascular meristems
  • epidermal meristems

The tissue that forms a complete communication system and performs the function of information transmission is

  • endoplasmic tissues
  • centrosome tissue
  • nucleotide tissue
  • nervous tissue

The network of microtubules and microfilaments is classified as

  • endoplasmic skeleton
  • vertebral skeleton
  • active skeleton
  • cytoskeleton

The stratified squamous epithelium tissues is present in

  • end of bones and trachea
  • lungs and kidneys
  • urinary bladder and kidneys
  • mouth and esophagus

The organelles discovered by Christian Rene that are bounded by single-membrane are called

  • centrioles
  • Golgi vesicles
  • ribosomes
  • lysosomes

The theory which is considered as most fundamental generalizations in biology is the

  • cell theory
  • Darwin Theory
  • Lamarck Theory
  • tissue theory

The movement of molecules to the low concentration area from higher concentration area is

  • diffusion
  • micro plasmas
  • macro plasm
  • mycoplasma

The name of the scientist who made the first microscope is

  • James Watson
  • Zacharias Janssen
  • Leeuwenhoek
  • David Baltimore

The tissue which is found in abdomen, around kidneys and under skin is called

  • nerve tissues
  • skeletal tissues
  • cardiac tissues
  • adipose tissue

The ribosomes are composed of

  • mRNA
  • mDNA
  • rRNA
  • rDNA

The relative concentration of the solute in a particular solution is classified as

  • hypotonic
  • turgidity
  • tonicity
  • hypertonic

The thylakoid stack present in plastids is known as

  • glycogen
  • granum
  • nucleolus
  • ribosomes

The working principle in a light microscope is using

  • UV light
  • visible light
  • spectrum light
  • white light

The electrons of the Scanning Electron Microscope are reflected through

  • glass funnel
  • specimen
  • metal-coated surfaces
  • vacuum chamber

The organelles of eukaryotic cells that are bounded by cell membrane are

  • mitochondria
  • endoplasmic reticulum
  • chloroplasts
  • all of above

The kind of electron microscope which is used to study the internal structure of cells is

  • scanning electron microscope
  • transmission electron microscope
  • light microscope
  • compound microscope

The flattened sacs that are present in the cell were discovered by

  • Ernst Haeckel
  • David Baltimore
  • Camillo Golgi
  • Rachel Carson
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