IB Biology - Unit 1 - Cell Biology Exam Study Guide Test
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Course
Ib biology
Institution
Ib Biology
IB Biology - Unit 1 - Cell Biology Exam Study Guide Test.
Cell Theory - CORRECT ANSWER The theory that cells form the fundamental structural and functional units of all living organisms
Unicellular - CORRECT ANSWER A single celled organism
Multicellular - CORRECT ANSWER Made up of more t...
IB Biology - Unit 1 - Cell Biology Exam
Study Guide Test.
Cell Theory - CORRECT ANSWER The theory that cells form the fundamental structural and functional
units of all living organisms
Unicellular - CORRECT ANSWER A single celled organism
Multicellular - CORRECT ANSWER Made up of more than one cell.
Prokaryotic - CORRECT ANSWER A small single cell lacking a nucleus or any other membrane-bound
organelles. Bacterial cells are an example
Eukaryotic - CORRECT ANSWER A cell characterized by the presence of a nucleus and other membrane-
bound organelles. Eukaryotes can be unicellular (protists) or multicellular (fungi, plants and animals).
Microscope - CORRECT ANSWER An instrument with lenses and light that is used to observe objects too
small to be visible with only the eyes.
Magnification - CORRECT ANSWER Make appear larger than it is, especially with a lens or microscope.
Resolution - CORRECT ANSWER Ability of a microscope to distinguish two objects as separate
Virus - CORRECT ANSWER Ultramicroscopic infectious agent that replicates itself only within cells of
living hosts
Differentiation - CORRECT ANSWER Cells develop different forms adapted to specific functions
, Emergent - CORRECT ANSWER Characteristic that appears as the complexity of life increases, once the
minor parts are assembled. For example when the brain is functioning you experience thoughts and
memories. Thoughts and memories are the emergent properties
Stem Cell - CORRECT ANSWER Cells that divide and remain undifferentiated. Three types are totipotent,
pluripotent, and multi-potent.
Ultrastructure - CORRECT ANSWER The detailed structure of the internal components of cells as
revealed by the electron microscope rather than by the light microscope.
Binary Fission - CORRECT ANSWER A form of asexual reproduction in single-celled organisms by which
one cell divides into two cells of the same size
Cell Wall - CORRECT ANSWER A rigid structure made of cellulose that surrounds the cell membrane and
provides support to the cell
Plasma membrane - CORRECT ANSWER Phospholipid partially-permeable membrane that controls what
can enter and exit the cell
Ribosome - CORRECT ANSWER A cell organelle that is the site of protein synthesis.
Cytoplasm - CORRECT ANSWER Cellular gel-like fluid material outside the nucleus and inside the plasma
membrane. Contains the cell organelles
Nucleoid - CORRECT ANSWER Area in prokaryotic cells in which DNA is concentrated, though not
bounded by a membrane
Flagella - CORRECT ANSWER Hairlike structures that allow some prokaryotic organisms to move
Pili - CORRECT ANSWER Appendages that allow bacteria to attach to each other and to transfer DNA
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