BIOL 204 ATHABASCA U- MIDTERM
EXAM QUESTIONS AND ANSWERS 100%
PASS 2026 UPDATE.
Cell membrane (plasma membrane) - ANS phospholipid bilayer that surrounds all cells and
regulates what enters and leaves the cell
eukaryote - ANS A cell that contains a nucleus and membrane bound organelles
nucleoid - ANS A non-membrane-bounded region in a prokaryotic cell where the DNA is
concentrated.
nucleus - ANS A part of the cell containing DNA and RNA and responsible for growth and
reproduction
prokaryote - ANS A unicellular organism that lacks a nucleus and membrane bound
organelles
amyloplast - ANS Unpigmented plasids that store starch grains, abundent in cells of stems,
tubers, and seeds
anchoring junction - ANS mechanically attaches adjacent cells to each other or to the
basement membrane
1 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED.
, bacterial flagellum - ANS A ropelike structure built from actin proteins that, through rotary
movements, propels a bacterium through fluid.
capsule - ANS A sticky layer that surrounds the cell walls of some bacteria, protecting the cell
surface and sometimes helping to glue the cell to surfaces.
cell wall - ANS A rigid layer of nonliving material that surrounds the cells of plants and some
other organisms.
centrosome - ANS A structure in animal cells containing centrioles from which the spindle
fibers develop.
chloroplast - ANS An organelle found in plant and algae cells where photosynthesis occurs
chromoplast - ANS a colored plastid other than a chloroplast, typically containing a yellow or
orange pigment.
crista (pl. cristae) - ANS the folds of the inner membrane of mitochondria. The site of the
electron transport chain
cytoskeleton - ANS A network of fibers that holds the cell together, helps the cell to keep its
shape, and aids in movement
endoplasmic reticulum (rough or smooth) - ANS extensive interconnected network of
membranous channels called cisternae, some have ribosomes covering it and others don't.
protein and lipid synthesis
extracellular matrix - ANS The substance in which animal tissue cells are embedded,
consisting of protein and polysaccharides.
2 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED.
EXAM QUESTIONS AND ANSWERS 100%
PASS 2026 UPDATE.
Cell membrane (plasma membrane) - ANS phospholipid bilayer that surrounds all cells and
regulates what enters and leaves the cell
eukaryote - ANS A cell that contains a nucleus and membrane bound organelles
nucleoid - ANS A non-membrane-bounded region in a prokaryotic cell where the DNA is
concentrated.
nucleus - ANS A part of the cell containing DNA and RNA and responsible for growth and
reproduction
prokaryote - ANS A unicellular organism that lacks a nucleus and membrane bound
organelles
amyloplast - ANS Unpigmented plasids that store starch grains, abundent in cells of stems,
tubers, and seeds
anchoring junction - ANS mechanically attaches adjacent cells to each other or to the
basement membrane
1 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED.
, bacterial flagellum - ANS A ropelike structure built from actin proteins that, through rotary
movements, propels a bacterium through fluid.
capsule - ANS A sticky layer that surrounds the cell walls of some bacteria, protecting the cell
surface and sometimes helping to glue the cell to surfaces.
cell wall - ANS A rigid layer of nonliving material that surrounds the cells of plants and some
other organisms.
centrosome - ANS A structure in animal cells containing centrioles from which the spindle
fibers develop.
chloroplast - ANS An organelle found in plant and algae cells where photosynthesis occurs
chromoplast - ANS a colored plastid other than a chloroplast, typically containing a yellow or
orange pigment.
crista (pl. cristae) - ANS the folds of the inner membrane of mitochondria. The site of the
electron transport chain
cytoskeleton - ANS A network of fibers that holds the cell together, helps the cell to keep its
shape, and aids in movement
endoplasmic reticulum (rough or smooth) - ANS extensive interconnected network of
membranous channels called cisternae, some have ribosomes covering it and others don't.
protein and lipid synthesis
extracellular matrix - ANS The substance in which animal tissue cells are embedded,
consisting of protein and polysaccharides.
2 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED.
