BIO 101 – Biology Exam Questions with Detailed
Answers | Complete Revision Guide[updated 2025]
1. Diffusion
The passive movement of particles from an area of high concentration to low
concentration. This happens along a concentration gradient
2. Osmosis
A passive movement of water molecules through a semi permeable
membrane. Water moves from an area of low solute concentration to high
solute concentration
,3. Active Transport
An active movement where an input of energy is required. Particles move
from low concentration to high concentration
4. Facilitated Diffusion
A passive movement of particles from high to low concentration through a
protein channel in a cell.
5. Isotonic Solution
The same concentration of dissolved substances. Water in = water out.
, 6. Hypertonic Solution
Higher concentration of solutes outside cell than inside
7. Plasmolyse
When a cell has shrunk
8. Hypotonic Solution
A cell has more solute inside than outside.
9. Turgid
Cell may explode under pressure due to a hypotonic solution.
10.Exocytosis
Movement out of a cell
11.Endocytosis
Movement into a cell
12.Lysosome
A vesicle that contains destructive/digestive chemicals
Answers | Complete Revision Guide[updated 2025]
1. Diffusion
The passive movement of particles from an area of high concentration to low
concentration. This happens along a concentration gradient
2. Osmosis
A passive movement of water molecules through a semi permeable
membrane. Water moves from an area of low solute concentration to high
solute concentration
,3. Active Transport
An active movement where an input of energy is required. Particles move
from low concentration to high concentration
4. Facilitated Diffusion
A passive movement of particles from high to low concentration through a
protein channel in a cell.
5. Isotonic Solution
The same concentration of dissolved substances. Water in = water out.
, 6. Hypertonic Solution
Higher concentration of solutes outside cell than inside
7. Plasmolyse
When a cell has shrunk
8. Hypotonic Solution
A cell has more solute inside than outside.
9. Turgid
Cell may explode under pressure due to a hypotonic solution.
10.Exocytosis
Movement out of a cell
11.Endocytosis
Movement into a cell
12.Lysosome
A vesicle that contains destructive/digestive chemicals
