Biology

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76 Questions - Developed by: Vilde Nybø Iversen - Developed on: - 392 taken

  • 1
    - Cell is a basic structural and functional component of living organisms
     True
     False
  • 2
    - Cells can live without an interaction with the surroundings
     True
     False
  • 3
    - Cells cannot live without an interaction with the surroundings
     True
     False
  • 4
    - A size of the cell is approx. 0.01 μm (0.005-0.12 μm)
     True
     False
  • 5
    - A size of the cell is approx. 0.01 nm (0.005-0.12 nm)
     True
     False
  • 6
    - A size of the cell is approx. 0.01 mm (0.005-0.12 mm)
     True
     False
  • 7
    - Basic features of living cells are metabolism, excitability, reproduction
     True
     False
  • 8
    - Basic features of living cells are not metabolism, excitability, reproduction
     True
     False
  • 9
    - The length of a cell can be many times higher than the size of its cell body
     True
     False
  • 10
    - The length of a cell can never be many times higher than the size of its cell body
     True
     False
  • 11
    - Air is not exchanged between the cell and the extracellular space
     True
     False
  • 12
    - Oxygen is not exchanged between the cell and the extracellular space
     True
     False
  • 13
    - Oxygen is exchanged between the cell and the extracellular space
     True
     False
  • 14
    - Heat is not exchanged between the cell and the extracellular space
     True
     False
  • 15
    - Heat is exchanged between the cell and the extracellular space
     True
     False
  • 16
    - The intracellular space (cytoplasm) contains particularly (>100 mmol/liter) H+ and K+
     True
     False
  • 17
    - The intracellular space (cytoplasm) contains particularly (>100 mmol/liter) Na+ and Ca+
     True
     False
  • 18
    - The extracellular space (outside of the cell) contains particularly (> 100 mmol/liter) Ca2+ and K+
     True
     False
  • 19
    - The extracellular space (outside of the cell) contains particularly (> 100 mmol/liter) Na+ and water
     True
     False
  • 20
    - The extracellular concentration of Na+ is several times higher than its intracellular concentration
     True
     False
  • 21
    - The extracellular concentration of Na+ is several times lower than its intracellular concentration
     True
     False
  • 22
    - Intra- and extra-cellular concentrations of Cl are practically identical
     True
     False
  • 23
    - The extracellular concentration of K+ is several times higher than its intracellular concentration
     True
     False
  • 24
    - The extracellular concentration of K+ is several times lower than its intracellular concentration
     True
     False
  • 25
    - Cholesterol is present in cell membranes
     True
     False
  • 26
    - Cholesterol is not present in cell membranes
     True
     False
  • 27
    - Water is an essential component of cell membranes
     True
     False
  • 28
    - Water is not an essential component of cell membranes
     True
     False
  • 29
    - Proteins are not present in cell membranes
     True
     False
  • 30
    - Proteins are present in cell membranes
     True
     False
  • 31
    - The cell membrane is built by one layer of phospholipid cells
     True
     False
  • 32
    - A surface of cell membranes is approx.7.5 nm
     True
     False
  • 33
    - A thickness of cell membranes is approx. 7.5 nm
     True
     False
  • 34
    - A thickness of cell membranes is approx. 1/1000 of the size of the cell
     True
     False
  • 35
    - A thickness of cell membranes is approx. 1/10 of the size of the cell
     True
     False
  • 36
    - Membranes of living cells are electrically depolarized
     True
     False
  • 37
    - Membranes of living cells are electrically polarized
     True
     False
  • 38
    - Cell membranes contain mostly phospholipids, proteins, molecules of sugar, cholesterol
     True
     False
  • 39
    - Cell membranes do not contain phospholipids
     True
     False
  • 40
    - Cell membranes do not contain saccharides
     True
     False
  • 41
    - There are the intracellular membranes (covering the surface of organelles) and plasmatic membranes (covering the cells)
     True
     False
  • 42
    - Membrane channels are built mostly by protein molecules
     True
     False
  • 43
    - Membrane channels are not built by protein molecules
     True
     False
  • 44
    - Membrane receptors might be made of glycoprotein molecules
     True
     False
  • 45
    - Membrane receptors are never made of glycoprotein molecules
     True
     False
  • 46
    - Main functions of a cellular membrane are: polarization, reproduction, and semi permeability
     True
     False
  • 47
    - Semi permeability is an important feature of cell membranes
     True
     False
  • 48
    - Polarization is an important feature of cell membranes
     True
     False
  • 49
    - Cell membranes do not contain genes
     True
     False
  • 50
    - Cell membranes contain genes
     True
     False
  • 51
    - The saline (physiological solution) is approx. 300 mOsm (300 mmol of particles/liter)
     True
     False
  • 52
    - The saline (physiological solution) is approx. 300 Osm (300 mol of particles / liter)
     True
     False
  • 53
    - The hemolysis of RBCs (erythrocytes) is visible in each hypotonic environment
     True
     False
  • 54
    - The hemolysis of RBCs (erythrocytes) is visible in highly hypotonic solution
     True
     False
  • 55
    - RBCs (erythrocytes) shrink (reduce their volume) in strong hypotonic environment
     True
     False
  • 56
    - RBCs (erythrocytes) shrink (reduce their volume) in hypertonic environment
     True
     False
  • 57
    - The molar concentration of hypertonic solution is higher than the concentration of 0.9% NaCl (isotonic physiological solution - saline)
     True
     False
  • 58
    - The molar concentration of hypertonic solution is lower than the concentration of 0.9% NaCl (isotonic physiological solution - saline)
     True
     False
  • 59
    - The saline (physiological solution) is 9 g of NaCl / 100 ml of the solution
     True
     False
  • 60
    - The saline (physiological solution) is 9 g of NaCl / 1000 ml of the solution
     True
     False
  • 61
    - Hemolysis RBCs (erythrocytes) are observed as a sediment (after the sedimentation or centrifugation of samples)
     True
     False
  • 62
    - RBCs (erythrocytes) are observed as a sediment (after the sedimentation or centrifugation of samples)
     True
     False
  • 63
    - An oncotic pressure of proteins represents the difference between the total osmotic pressure and the osmotic pressure of „low-molecules“ (particularly inorganic) components in the blood plasma
     True
     False
  • 64
    - An oncotic pressure is manifested on the membrane permeable for water and small
    molecules
     True
     False
  • 65
    - An oncotic pressure is manifested on the membrane permeable for water and colloids
     True
     False
  • 66
    - An oncotic pressure is manifested on the membrane permeable for colloids
     True
     False
  • 67
    - Edema occurs when oncotic pressure of plasma is too high
     True
     False
  • 68
    - Edema occurs when oncotic pressure of plasma is too low
     True
     False
  • 69
    - Edema occurs when blood pressure is too low
     True
     False
  • 70
    - Edema occurs when blood pressure is too high
     True
     False
  • 71
    - Blood cells swell (expand their volume) in hypotonic solution
     True
     False
  • 72
    - Blood cells swell (expand their volume) in isotonic solution
     True
     False
  • 73
    - Blood cells swell (expand their volume) in hypertonic solution
     True
     False
  • 74
    - The ability of RBCs (erythrocytes) to withstand (to a certain degree) hypotonic
    environment is called osmotic resistance of RBCs (erythrocytes)
     True
     False
  • 75
    - Elasticity of cell membrane may contribute to osmotic resistance of RBCs (erythrocytes)
     True
     False
  • 76
    You are cool.
     True
     False

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