TEST PAPER 2026 QUESTIONS AND
SOLUTIONS GRADED A+
●● Diffusion.
Answer: Dissolved substance particles move high concentration to low
concentration.
●● Concentration Gradient.
Answer: The difference in concentration levels.
●● Selectively Permeable Membrane.
Answer: Membrane allowing some substances to pass through, but not
others.
●● Hypertonic.
Answer: Higher solute INSIDE
●● Hypotonic.
Answer: Higher solute INSIDE
●● Homeostasis.
,Answer: Maintaining a constant internal environment
●● Ways to get substances into and out of the cell.
Answer: Diffusion and Osmosis
●● Two ways diffusion can be affected.
Answer: Temperature (temp increases, diffusion increases) and weight
(lower weight, diffusion increases).
●● Solute.
Answer: The substance that is dissolved in the solution.
●● Solvent.
Answer: The substance that dissolves the solute.
●● Aqueous solution.
Answer: Water solution
●● Passive transport.
Answer: A substance going into a cell that does not require energy (most
economical).
●● Isotonic.
, Answer: The solute concentrations are equal on both sides of the
membrane.
●● Osmotic Equilibrium.
Answer: No movement of water will occur across the membrane.
●● The four classes of organic molecules with living organisms'
structures..
Answer: Carbohydrates, Lipids, Proteins, and Nucleic Acids
●● Organic molecules are made up of what bonds?.
Answer: Carbon-Hydrogen Bonds
●● Inorganic molecules have Carbon-Hydrogen Bonds?.
Answer: Noooo
●● Monomer.
Answer: Building block of macromolecules.
●● Polymers.
Answer: Monomers together
●● What does Benedict's test test for?.