The Dutch naturalist who observed first living cells is

  • Bruce Albert
  • Antonie van Leeuwenhoek
  • Ernst Haeckel
  • Richard Alexander

The electrons of Transmission Electron Microscope are transmitted through

  • photographic film
  • vacuum chamber
  • glass funnel
  • specimen

As compared to simple diffusion, the facilitated diffusion rate is

  • higher
  • lower
  • equal
  • none of above

The resolving power of a light microscope is

  • 5 micrometer
  • 2 micrometer
  • 0.5 micrometer
  • 0.2 micrometer

The tissues that provide flexibility and strength to the plants are called

  • endocytosis tissues
  • exocytosis tissues
  • connective tissues
  • support tissues

The cell membranes are also known as

  • active membrane
  • passive membrane
  • permeable membrane
  • semi-permeable membrane

The smooth muscles are found in walls of

  • urinary bladder
  • blood vessels
  • alimentary canal
  • all of above

The biochemical reactions and proper functioning of organelles takes place in

  • cytoplasm
  • nucleus
  • Golgi complex
  • vacuoles

The muscles whose contraction is under our control are

  • skeletal muscles
  • nerve muscles
  • epidermal muscles
  • xylem muscles

The types of permanent tissues do not includes

  • epidermal tissues
  • xylem tissues
  • support tissues
  • ground tissues

The tracheids and vessel elements are types of

  • xylem tissues
  • phloem tissues
  • vascular tissues
  • lateral tissues

The system of cells in which substances that are needed for metabolic activities are passed through the cell membrane is called

  • granum system
  • open system
  • close system
  • nucleoid system

In animal cells, the nucleus is present in

  • left side of cell
  • right side of ell
  • center of cell
  • none of above

The cell organelle which is found in the cells of photosynthetic protists and plants is called

  • granum
  • stroma
  • chloroplasts
  • plastids

The situation in which transport protein moves the substance to lower concentration from higher concentration is called

  • osmoregulatory diffusion
  • facilitated diffusion
  • passive diffusion
  • active diffusion

The growth of lateral meristems is also known as

  • primary growth
  • secondary growth
  • tertiary growth
  • epidermal growth

The important structures of cells other than organelles are

  • cell wall
  • cell membrane
  • cytoplasm and cytoskeleton
  • all of above

The epithelium which protects inner parts is

  • stratified columnar
  • ciliated squamous
  • stratified squamous
  • ciliated columnar

The vascular cambium and cork cambium are considered as types of

  • lateral meristems
  • cutin meristems
  • epidermal meristems
  • transverse meristems

The cells that function in pulling different parts of the body together are

  • platelets
  • red blood cells
  • lengthy nerve cells
  • long muscle cells

The two scientists who had proposed cell theory in initial forms are

  • Schwann and Schleiden
  • Watson and David
  • Bruce and John
  • Nicolas and Rudolf

The magnifying range of first compound microscope is

  • 10X to 25X
  • 5X to 20X
  • 3X to 9X
  • 3X to 15X

The centrioles can also be responsible for the formation of

  • mosses and ferns
  • ferns and cilia
  • mosses and cilia
  • flagella and cilia

The cell membrane of cells is also known as

  • carbon membrane
  • endoplasmic membrane
  • plasma membrane
  • lipid membrane

The harmful chemicals are detoxified through

  • rough endoplasmic reticulum
  • smooth endoplasmic reticulum
  • synthetic endoplasmic reticulum
  • lipid endoplasmic reticulum

The permanent tissues cannot

  • infuse
  • absorb
  • secrete
  • divide

The cutin coating on the leaves and stems of plants is classified as

  • meristem
  • epidermis
  • cuticle
  • stomata

The specific behavior of cells to maintain the shape of sort portions of shrubs and trees is

  • osmosis of cells
  • turgor of cells
  • opening of stomatas
  • diffusion of cells

The tissue which binds and supports other tissues is called

  • connective tissue
  • linkage tissue
  • muscle tissue
  • nervous tissue

The epidermal tissues consist of a single-cell layer to cover

  • body of plants
  • roots of plants
  • flower of plants
  • seeds of plants
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