Proteins are one of the least abundant organic molecules in living systems.

Anatomy by Geoffrey

 Chapter 3 Cellular Level Of Organization Flashcards

  1. ________________ are major components of the plasma membrane. They are made of a polar head and a non-polar tail.
  2. A _____________________________ is a molecule with two fatty acids and a modified phosphate group attached to a glycerol backbone.
  3. Protein
  4. DNA
  5. Phospholipid
  6. Phospholipid bilayer
  7. Proteins are one of the least abundant organic molecules in living systems.
  8. True
  9. False
  10. Which of the following is NOT the function of proteins?
  11. Support
  12. Defense
  13. Regulation
  14. Transport
  15. Information storage
  16. Metabolism
  17. Motion
  18. _____________________ is made of a phospholipid bilayer with embedded proteins.
  19. Lipid
  20. Phospholipid
  21. Membrane
  22. Cell membrane
  23. A and B
  24. ______________________is a lipid molecule with 2 fatty acid chains and a phosphate-containing group.

 

  1. _______________________ separates the internal contents of the cell from its surrounding environment.
  2. Lipid
  3. Phospholipid bilayer
  4. Membrane
  5. Cell membrane
  6. ____________________ is a passive form of transport of molecules.
  7. Diffusion
  8. Simple diffusion
  9. Osmosis
  10. None of the above
  11. _________________ occurs when a transporter is required to transport a molecule across the cell membrane without spending energy.
  12. Diffusion
  13. Active transport
  14. Facilitated diffusion
  15. Passive and active transport
  16. Choose the factor that does NOT affect the rate of diffusion.
  17. Mass of molecules diffusing
  18. Solubility of the molecule
  19. Concentration gradient
  20. Color of the molecule
  21. __________________ is diffusion of water across the plasma membrane due to concentration differences.
  22. In a ________ solution cell gains water; In an __________________solution cell neither gains or loses water; In a _______________ solution – cell loses water.
  23. Hypotonic; hypertonic; isotonic
  24. Isotonic; hypotonic; hypertonic
  25. Hypotonic; isotonic; hypertonic
  26. Hypertonic; isotonic; hypotonic
  27. ______________ is a passive transport of water.
  28. Osmosis
  29. Diffusion
  30. Simple diffusion
  31. Facilitated diffusion
  32. Which solutions are the blood cells in? select the words below:

Isotonic, hypertonic, hypotonic

 

 

 

  1. _______________ is the entire region of a cell between the plasma membrane and the nuclear envelope.
  2. Cytoplasm
  3. Nucleoplasm
  4. Sarcoplasm
  5. None of the above
  6. _________________ are the cellular structures responsible for protein synthesis.
  7. Endoplasmic reticulum
  8. Ribosomes
  9. Nucleus
  10. cytoplasm
  11. _________________ are called the powerhouse of the cell.
  12. Endoplasmic reticulum
  13. Ribosomes
  14. mitochondria
  15. 2 important functions of cytoskeletons are:
  16. ________________
  17. ________________
  18. _________________ houses the cell’s DNA and directs the synthesis of ribosomes and proteins.

 

Vocabulary

A selectively permeable membrane                    Diffusion

Concentration                                                      Osmosis

 

  1. Fill in the blanks for the following 8 questions. Words may be used more than

 

  1.                                                 refers to the amount of a substance in a given

 

  1.                                                  is the movement of particles from an area of higher concentration to an area of lower

 

  1. Diffusion
  2. Simple diffusion
  3. Facilitated diffusion
  4. osmosis

 

  1.                                                                                                   allows some materials to pass through it but keeps other materials
  2. Membrane
  3. Selective membrane
  4. Plasma membrane
  5. Nuclear membrane

 

  1.                                                   is the diffusion of water molecules through a selectively permeable
  2. Water diffusion
  3. Osmosis
  4. Simple diffusion
  5. Facilitated diffusion

 

 

  1.                                                   moves wastes from inside of a cell to outside a

 

  1.                                                                                                   can be compared to a window screen.

 

  1.                                                   happens when water particles move from a place where their concentration is higher to a place where their concentration is

 

  1. __________________ is diffusion of water across the plasma membrane due to concentration differences.

 

  1. ______________ is a passive transport of water.

 

  1. _________________ works against concentration (electrochemical) gradients using ATP (energy).
  2. _________________ occurs when large amount of fluid or particles are brought
  3. Large transport
  4. Huge transport
  5. Passive transport
  6. Active transport
  7. Bulk transport
  8. _______________ occurs if the bulk transport carries the molecule into the cell by vacuole formation.
  9. Phagocytosis
  10. Pinocytosis
  11. Exocytosis
  12. Receptor mediated endocytosis
  13. _______________ occurs when vesicles form around a liquid or around very small particles and take it into the cell.
  14. Phagocytosis
  15. Pinocytosis
  16. Exocytosis
  17. Receptor mediated endocytosis