CAMPBELL BIOLOGY IN FOCUS 4TH EDITION
BY LISA A. URRY EXAM 2026 ACTUAL TEST
PAPER WITH COMPLETE QUESTIONS AND
CORRECT ANSWERS
◉ electron microscope. Answer: a microscope of extremely high
power that uses beams of electrons focused by magnetic lenses
instead of rays of light
◉ organelles. Answer: any of several kinds of membrane-enclosed
structures with specialized functions, suspended in the cytosol of
eukaryotic cells
◉ transmission electron microscope(TEM). Answer: internal
structure
◉ scanning electron microscope(SEM). Answer: topography of a
specimen
◉ cell fractionation. Answer: the disruption of a cell and separation
of its parts by centrifugation at successively higher speeds
◉ cytosol. Answer: the semifluid portion of the cytoplasm
, ◉ eukaryotic cell. Answer: A type of cell with a membrane-enclosed
nucleus and membrane-enclosed organelles. Organisms with
eukaryotic cells(protists, plants, fungi, and animals) are called
eukaryotes.
◉ prokaryotic cell. Answer: A type of cell lacking a membrane-
enclosed nucleus and membrane-enclosed organelles. Organisms
with prokaryotic cells(bacteria and archaea) are called prokaryotes.
◉ nucleoid. Answer: a non-membrane enclosed region in a
prokaryotic cell where its chromosome is located
◉ cytoplasm. Answer: the contents of the cell enclosed by the
plasma membrane; in eukaryotes, the portion exclusive of the
nucleus
◉ plasma membrane. Answer: the membrane at the boundary of
every cell that acts as a selective barrier, regulating the cell's
chemical composition
◉ nucleus. Answer: 1) an atom's central core, containing protons
and neutrons 2) the organelle of a eukaryotic cell that contains the
genetic material in the form of chromosomes, made up of chromatin
(3) a cluster of neurons
BY LISA A. URRY EXAM 2026 ACTUAL TEST
PAPER WITH COMPLETE QUESTIONS AND
CORRECT ANSWERS
◉ electron microscope. Answer: a microscope of extremely high
power that uses beams of electrons focused by magnetic lenses
instead of rays of light
◉ organelles. Answer: any of several kinds of membrane-enclosed
structures with specialized functions, suspended in the cytosol of
eukaryotic cells
◉ transmission electron microscope(TEM). Answer: internal
structure
◉ scanning electron microscope(SEM). Answer: topography of a
specimen
◉ cell fractionation. Answer: the disruption of a cell and separation
of its parts by centrifugation at successively higher speeds
◉ cytosol. Answer: the semifluid portion of the cytoplasm
, ◉ eukaryotic cell. Answer: A type of cell with a membrane-enclosed
nucleus and membrane-enclosed organelles. Organisms with
eukaryotic cells(protists, plants, fungi, and animals) are called
eukaryotes.
◉ prokaryotic cell. Answer: A type of cell lacking a membrane-
enclosed nucleus and membrane-enclosed organelles. Organisms
with prokaryotic cells(bacteria and archaea) are called prokaryotes.
◉ nucleoid. Answer: a non-membrane enclosed region in a
prokaryotic cell where its chromosome is located
◉ cytoplasm. Answer: the contents of the cell enclosed by the
plasma membrane; in eukaryotes, the portion exclusive of the
nucleus
◉ plasma membrane. Answer: the membrane at the boundary of
every cell that acts as a selective barrier, regulating the cell's
chemical composition
◉ nucleus. Answer: 1) an atom's central core, containing protons
and neutrons 2) the organelle of a eukaryotic cell that contains the
genetic material in the form of chromosomes, made up of chromatin
(3) a cluster of neurons
