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chapter 2 grade 9 advanced

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  • Which of the following is present in a prokaryotic cell?
    mitochondrion
    Endoplasmic reticulum
    cytoplasm
    nucleus
  • If you have a random sample of a plasma membrane, how can you determine if this plasma membrane belongs to an animal or plant cell?
    cholesterol
  • ......................... Increases in root and stem diameters
    Lateral meristem
  • Which of those sentence is TRUE ?
    none of the above
    Phospholipids increase the fluidity of the membrane
    prokaryotic cells evolved from eukaryotic cells millions of
    plasma membrane allows all substances to pass through
  • ....................... : stick out from the plasma membrane to define the cell’s identity and help cells identify chemical signals
    carbohydartes
  • Which of those are the basic principles of cell theory?
    Cells arise only from previously existing cells
    All of the above
    All living organisms are composed of one or more cells
    Cells are the basic unit of structure of all living organism
  • What kind of leaf venation is this?
    parrallel
    Pinnate
    whorled
    palmate
  • ............................... are specialized structures that carry out specific cell functions
    Organelles
    plasma membrane
    Cellular structure
    Prokaryotic
  • ............................. helps to prevent the fatty-acid tails of the phospholipid bilayer from sticking together
    Cholesterol
  • A key property of the plasma membrane is
    selective permeability
    semetric permeability
    Membrance permeability
    homeostasis
  • ......................... reduce water loss from plants and prevent bacteria and other disease-causing organisms from entering the plant
    Cuticle
  • What kind of plant cell responsible for photosynthesis
    parenchyma cells
  • What kind of diffusion by which some sugars can pass through the membrane ?
    Simple diffusion
    facilitated diffusion
    Exocytosis
    Osmosis
  • What kind of solution is this ?
    Hypertonic
  • What kind of root is this one ?
    modified root
    Taproot
    prop root
    Fibrous root
  • What kind of tropism is this ?
    Gravitropism
    Phototropism
    Thigmotropism
    none of the above
  • .......................is the process by which a cell surrounds a substance in the outside environment, enclosing the substance in a portion of the plasma membrane
    Endocytosis
  • A cell was first discovered by Robert hooke by using
    cork
  • ........................ small openings on leaves through which carbon dioxide, water, oxygen, and other gases pass.
    stomata
  • ................................ the regulation of the internal environment of a cell or organism to maintain conditions suitable for life
    Homeostasis
  • .....................................pump uses the energy to transport three sodium ions out of the cell while moving two potassium ions into the cell
    Na+/K+ ATPase pump
  • A plant response that causes movement that is not dependent on the direction of the stimulus and it is reversible
    Nastic responose
  • The two cells that control the opening and closing of stomata are .............
    Guard cells
  • .......................... electrons are passed, or transmitted, through a specimen to a fluorescent screen
    Transmission electron microscope (TEM )