LEARNING ACTUAL EXAM PAPER 2026
QUESTIONS WITH SOLUTIONS GRADED A+
◉ Which scientist was the first to observe living organisms in pond
water and milk using a microscope? Answer: Anton van
Leeuwenhoek.
◉ German scientist Matthias Schleiden concluded that all _____ are
composed of cells. Answer: Plants.
◉ Which scientist declared that all animal tissues are made up of
cells? Answer: Theodor Schwann.
◉ What was Rudolf Virchow's primary contribution to the cell
theory? Answer: He proposed that all cells come from cells that
already exist through division.
◉ According to the cell theory, what is the basic unit of organization
in all living organisms? Answer: The cell.
, ◉ How do daughter cells receive hereditary information from their
parent cells according to the cell theory? Answer: Cells pass copies
of their genetic material during cell division.
◉ If a compound light microscope has two lenses that each magnify
an image 20x, what is the total magnification? Answer: 400 x
(calculated as 20 x 20)
◉ What is the maximum magnification limit of a modern compound
light microscope? Answer: About 1000x
◉ Instead of glass lenses, what does a transmission electron
microscope (TEM) use to aim a beam of electrons? Answer: Magnets.
◉ What is the primary advantage of a scanning electron microscope
(SEM) over a transmission electron microscope (TEM)? Answer: The
SEM produces a three-dimensional image of the cell.
◉ Which specific type of electron microscope allows for the
magnification of living cells? Answer: The scanning tunneling
electron microscope (STM).
◉ What boundary is common to all cells and controls what enters
and leaves the cell? Answer: The plasma membrane.