GCU BIO-201 EXAM 1 DETAILED VERIFIED
QUESTIONS & ANSWERS (100% CORRECT
ANSWERS/ GRADED A+
1. Pinocytosis: Cell drinking
2. Phagocytosis: Cell eating
3. Exocytosis: release of substances outside a cell by the fusion of a vesicle with the membrane.
4. Endocytosis: process by which a cell takes material into the cell by enfolding of the cell membrane
5. Osmosis: Low to High, Diffusion of water through a selectively permeable membrane
6. Diffusion: Movement of molecules from an area of higher concentration to an area of lower
concentration.
7. Tonicity: the ability of a surrounding solution to cause a cell to gain or lose water
8. Isotonic solution: when the concentration of two solutions is the same (moving in and out
equally)
9. Hypertonic solution: A solution in which the concentration of solutes is greater outside
then inside the cell that resides in the solution
10. Hypotonic solution: Solute concentration is less than the inside the cell; cell gains water
11. Oncotic pressure: pulls fluid into the capillaries and/or prevents fluid from leaving.
12. Hydrostatic pressure: increases filtration by pushing fluid and solute OUT of the capillaries
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, 13. Crenation: This happens when a cell shrinks and shrivels; can result in cell death if severe.
14. Hemolysis: destruction/split of red blood cells
15. Active transport: the movement of ions or molecules across a cell membrane into a
region of higher concentration, assisted by enzymes and requiring energy.
16. Passive(facilitated) transport: the movement of substances across a cell membrane
without the use of energy by the cell
17. Co-transport: TWO substances are transported together by one protein no ATPase activity
18. Counter transport: One substance is being transported into the cell membrane and the
other is getting transported in the opposite direction.
19. What are some factors that affect diffusion? • Temperature
• Solvent Density
• Distance traveled
20. Simple Diffusion: high to low concentration easy to flow through cell membrane; Oxygen is an
example
21. Channel Mediated: Only the right shape gets through example little kid shape puzzles
22. List the three categories of transport across the cell
membrane.: • Active transport
• Carrier Mediated
• Channel mediated
23. The structure of the mitochondrion: outer membrane, inter inner membrane,
membrane space, cristae (folds in), matrix
24. Phosphorylation: The metabolic process of introducing a phosphate group into an organic
molecule.
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QUESTIONS & ANSWERS (100% CORRECT
ANSWERS/ GRADED A+
1. Pinocytosis: Cell drinking
2. Phagocytosis: Cell eating
3. Exocytosis: release of substances outside a cell by the fusion of a vesicle with the membrane.
4. Endocytosis: process by which a cell takes material into the cell by enfolding of the cell membrane
5. Osmosis: Low to High, Diffusion of water through a selectively permeable membrane
6. Diffusion: Movement of molecules from an area of higher concentration to an area of lower
concentration.
7. Tonicity: the ability of a surrounding solution to cause a cell to gain or lose water
8. Isotonic solution: when the concentration of two solutions is the same (moving in and out
equally)
9. Hypertonic solution: A solution in which the concentration of solutes is greater outside
then inside the cell that resides in the solution
10. Hypotonic solution: Solute concentration is less than the inside the cell; cell gains water
11. Oncotic pressure: pulls fluid into the capillaries and/or prevents fluid from leaving.
12. Hydrostatic pressure: increases filtration by pushing fluid and solute OUT of the capillaries
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10
, 13. Crenation: This happens when a cell shrinks and shrivels; can result in cell death if severe.
14. Hemolysis: destruction/split of red blood cells
15. Active transport: the movement of ions or molecules across a cell membrane into a
region of higher concentration, assisted by enzymes and requiring energy.
16. Passive(facilitated) transport: the movement of substances across a cell membrane
without the use of energy by the cell
17. Co-transport: TWO substances are transported together by one protein no ATPase activity
18. Counter transport: One substance is being transported into the cell membrane and the
other is getting transported in the opposite direction.
19. What are some factors that affect diffusion? • Temperature
• Solvent Density
• Distance traveled
20. Simple Diffusion: high to low concentration easy to flow through cell membrane; Oxygen is an
example
21. Channel Mediated: Only the right shape gets through example little kid shape puzzles
22. List the three categories of transport across the cell
membrane.: • Active transport
• Carrier Mediated
• Channel mediated
23. The structure of the mitochondrion: outer membrane, inter inner membrane,
membrane space, cristae (folds in), matrix
24. Phosphorylation: The metabolic process of introducing a phosphate group into an organic
molecule.
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