A. Xylem
Q. Water enters the outermost cells
of the root by osmosis. What does
this tell you about the cell sap of
these outermost cells?
A. Lower water concentration;
Higher solute concentration
Q. Osmosis has been described as a
special case of diffusion. Explain
why.
A. Pressure of cell contents on cell
wall
Q. Give an example of osmosis in
plants.
A. Water movement between cells
or from soil to root
Q. Name a substance found in a
plant cell vacuole.
A. Movement of water along a
concentration gradient through a
selectively permeable membrane
A. Water; Sugar; Sap; Salt(s);
Protein
Q. What is meant by a selectively
permeable membrane?
Q. Give a feature of a plant cell that
allows it to remain turgid for long
periods.
A. Allowing some substances to
pass through
A. Vacuole; Cell wall; Cell sap
Q. Give locations in a cell at which
there is a selectively permeable
membrane.
Q. True or False. Plant cell walls are
fully permeable.
A. Chloroplast; Mitochondrion;
Nucleus; Vacuole
A. TRUE
Q. What is diffusion?
Q. Water for photosynthesis enters
the roots of plants by what process?
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A. Movement of molecules from
area of high concentration to area
of lower concentration
Q. Why is diffusion alternatively
known as passive transport?
A. Osmosis
Q. Suggest a way in which turgor is
of value to plants.
A. No energy (ATP) required
A. Support
Q. Explain the biological basis for
the use of high sugar or high salt
concentrations in the preservation
of food.
Q. Name the terms used in biology
to describe the movement of
substances through cell
membranes.
A. Bacteria lose water by osmosis;
this leads to inactivity or death
Q. What did you use as the
selectively permeable membrane in
your investigation of osmosis?
A. Diffusion; Osmosis; Active
transport
Q. What process is responsible for
the uptake of minerals in a plant?
A. Active transport
A. Visking tubing
Q. What is active transport?
Q. What is meant by
osmoregulation?
A. Movement of molecules against
a concentration gradient using
energy
A. Controlling the water/salt
balance within an organism
Q. Name two substances that enter
a human muscle cell by diffusion.
Q. Where precisely does water enter
a plant?
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A. Oxygen; Glucose; Water; Amino
acids; Phosphate; Iron
A. Root hairs
Q. The drooping of the leaves of a
Q. Suggest an advantage to the cell
plant resulting from loss of turgidity
of having a selectively permeable
due to lack of water is known as …
membrane.
A. Substances can be kept in (or
out); Substances can be let in (or
out)
Q. Explain the term turgor.
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A. Wilting
Q. In which tissue does water
ascend through the plant?
Follow-me Quiz
Follow-me Quiz
2.2.6 Movement through
Cell Membranes
2.2.6 Movement through
Cell Membranes
Follow-me Quiz
Follow-me Quiz
2.2.6 Movement through
Cell Membranes
2.2.6 Movement through
Cell Membranes
Follow-me Quiz
Follow-me Quiz
2.2.6 Movement through
Cell Membranes
2.2.6 Movement through
Cell Membranes
Follow-me Quiz
Follow-me Quiz
2.2.6 Movement through
Cell Membranes
2.2.6 Movement through
Cell Membranes
Follow-me Quiz
Follow-me Quiz
2.2.6 Movement through
Cell Membranes
2.2.6 Movement through
Cell Membranes
Enter Topic Title in each section above
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