The division of apical meristems leads to the

  • decrease in vascular cambium
  • increase in plant length
  • decrease in plant length
  • increase in vascular cambium

The most common chemical of the primary wall is

  • nucleolus
  • cellulae
  • cellulose
  • cellulite

The sclerenchyma tissues found in plants are composed of

  • rigid primary cell walls
  • thickened secondary cell walls
  • rigid secondary cell walls
  • thickened primary cell walls

The cells were first described by Robert Hooke is

  • 1765
  • 1965
  • 1865
  • 1665

The types of microscopes are

  • proton microscope
  • electron microscope
  • light microscope
  • none of above

The types of tissues can be divided based on

  • shape of cells only
  • number of cell layers only
  • shape of spindle fibers
  • shape of cells and number of cell layers

The increase in the size of a particular object is classified as

  • up gradation
  • magnification
  • termination
  • recognition

The cells that transmit the nerve impulses are

  • nerve cells
  • root hair cells
  • red blood cells
  • granum cells

The fine-thread like the structure of chromosomes during interphase is classified as

  • microtubules
  • radii
  • chromatin
  • nuclei

The example of a hyper solution is

  • hydrochloric acid
  • nitric acid
  • freshwater
  • seawater

The thick secondary cell walls are also known as

  • vascular elements
  • lateral elements
  • epidermal elements
  • vessel elements

The skeletal muscles are also known as

  • striated muscles
  • impulsive muscles
  • reflexive muscles
  • adipose muscles

The cuboidal epithelium tissue which is composed of a single layer of cube-shaped cells is found in

  • external ear and nose
  • urinary bladder and alimentary canal
  • small glands and kidney tubes
  • blood vessels and heart

The muscles that have involuntary action are

  • smooth and skeletal muscles
  • cardiac and smooth muscles
  • skeletal and cardiac muscles
  • squamous and ciliated muscles

The examples of compound tissues include

  • nervous and connective tissues
  • phloem and xylem tissues
  • support and ground tissues
  • epithelial and muscle tissues

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

  • isotonic transport
  • active transport
  • passive transport
  • hypotonic transport

The name of the British scientist who described the cells for the very first time is

  • David Baltimore
  • James Watson
  • Robert Hooke
  • Antonie Leeuwenhoek

Considering kinds of epithelial tissues, the cuboidal epithelium is composed of

  • elongated cells
  • single layer of flat cells
  • single layer of cube cells
  • many layer of flat cells

The cell wall of prokaryotes is made up of

  • chitin
  • cellulose
  • peptidoglycan
  • polypeptides

The description of the cell was first given by

  • Robert Hooke
  • Aristotle
  • Robert Brown
  • Matthias Schneider

The measure of the clarity of a particular object is classified as

  • resolution only
  • resolving power only
  • up gradation
  • resolution and resolving power

The environment in which net uptake of water is so low that the cell becomes flaccid is

  • toning environment
  • hypertonic environment
  • hypotonic environment
  • isotonic environment

The lumen is also known as

  • right artery
  • left artery
  • small intestine
  • large intestine

Considering kinds of epithelial tissues, the columnar epithelium is composed of

  • elongated cells
  • flat cells with flagella
  • cube cells with cilia
  • flat cells with cilia

The cells take in materials in the form of liquid during

  • phagocytosis
  • microcytosis
  • pinocytosis
  • microcytosis

For the study of the internal structure of the cell we use

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

The mesophyll present in leaves are considered as the site of

  • lipid synthesis
  • protein synthesis
  • photosynthesis
  • respiration

The composition of cell membrane consists of

  • lipids and proteins
  • sugar and salts
  • magnesium and potassium
  • chorine and hydrogen

The fundamental unit shared by all the living organisms is

  • Golgi bodies
  • cell
  • cell membrane
  • cell wall

The Deoxyribonucleic Acid (DNA) stands for

  • deoxyribonucleic acid
  • dicotyledonous nuclei
  • deoxidized nuclei
  • all of above
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