BIOS251 EXAM 2 REVIEW: CELL
THEORY AND TISSUE TYPES. EXAM
QUESTIONS AND ANSWERS 100% PASS
2026 EDITION
Principles of Cell Theory - ANS The smallest structure capable of carrying out life processes;
every organism is made up of one or more cells; cells can only form from pre-existing cells.
Prokaryotic cells - ANS Cells without an organized nucleus.
Eukaryotic cells - ANS Cells with an organized and well defined nucleus.
Plasma (cell) membrane - ANS Separates internal and external environments.
DNA - ANS Genetic material that controls an organism's composition and replicates the cell.
Cytoplasm - ANS All the fluid and components between the nucleus and the cell membrane,
including the cytosol and cytoskeleton.
Cytosol - ANS The liquid portion of the cytoplasm.
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@2026 EDITION ALLRIGHTS RESERVED
, Organelles - ANS Specialized structures within a cell that perform distinct processes.
Ribosomes - ANS The site of protein synthesis.
Cytoskeleton - ANS Intracellular support used in cell movement and moves organelles.
Gamete cells - ANS Cells used for reproduction (sperm and ovum) that replicate via meiosis.
Somatic cells - ANS All other cells in the body that replicate via mitosis.
Functions of the cell membrane - ANS Serves as a barrier, anchors the cytoskeleton, shapes
the cell, allows communication, moves essential molecules in, and removes waste.
Phospholipid bilayer - ANS The structure that makes up the cell membrane, consisting of
hydrophilic heads and hydrophobic tails.
Transmembrane proteins - ANS Proteins that cross the width of the membrane touching both
internal and external surfaces.
Peripheral proteins - ANS Proteins only found on one surface of the membrane.
Cholesterol - ANS Creates the fluid mosaic model that gives the cell both structure and
flexibility.
Integral proteins - ANS Proteins that travel the entire width of the membrane touching both
internal and external surfaces.
Channel proteins - ANS Proteins that allow ions to cross the membrane from one side to
another.
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@2026 EDITION ALLRIGHTS RESERVED
THEORY AND TISSUE TYPES. EXAM
QUESTIONS AND ANSWERS 100% PASS
2026 EDITION
Principles of Cell Theory - ANS The smallest structure capable of carrying out life processes;
every organism is made up of one or more cells; cells can only form from pre-existing cells.
Prokaryotic cells - ANS Cells without an organized nucleus.
Eukaryotic cells - ANS Cells with an organized and well defined nucleus.
Plasma (cell) membrane - ANS Separates internal and external environments.
DNA - ANS Genetic material that controls an organism's composition and replicates the cell.
Cytoplasm - ANS All the fluid and components between the nucleus and the cell membrane,
including the cytosol and cytoskeleton.
Cytosol - ANS The liquid portion of the cytoplasm.
1
@2026 EDITION ALLRIGHTS RESERVED
, Organelles - ANS Specialized structures within a cell that perform distinct processes.
Ribosomes - ANS The site of protein synthesis.
Cytoskeleton - ANS Intracellular support used in cell movement and moves organelles.
Gamete cells - ANS Cells used for reproduction (sperm and ovum) that replicate via meiosis.
Somatic cells - ANS All other cells in the body that replicate via mitosis.
Functions of the cell membrane - ANS Serves as a barrier, anchors the cytoskeleton, shapes
the cell, allows communication, moves essential molecules in, and removes waste.
Phospholipid bilayer - ANS The structure that makes up the cell membrane, consisting of
hydrophilic heads and hydrophobic tails.
Transmembrane proteins - ANS Proteins that cross the width of the membrane touching both
internal and external surfaces.
Peripheral proteins - ANS Proteins only found on one surface of the membrane.
Cholesterol - ANS Creates the fluid mosaic model that gives the cell both structure and
flexibility.
Integral proteins - ANS Proteins that travel the entire width of the membrane touching both
internal and external surfaces.
Channel proteins - ANS Proteins that allow ions to cross the membrane from one side to
another.
2
@2026 EDITION ALLRIGHTS RESERVED
