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WorksheetsCell Transport (7th Grade Science)
Total questions: 22
Worksheet time: 14mins
What is Osmosis
The process by which water moves across a selectively permeable
membrane
The process of molecules going from a area of higher concentration to an area of lower concentration.
the movement of materials through a cell membrane using cellular energy
When some substances can pass through the membrane while others can not.
What is Diffusion
When some substances can pass through the membrane while others can not.
diffusion of water molecules through a selectively permidable membrane.
the movement of dissovled materials through a cell membrane without using
cellular energy
the process by which molecules move from an area of higher concentration
to an area of lower concentration
What is Passive Transport?
the movement of materials through a cell membrane using cellular energy
the movement of dissovled materials through a cell membrane without using
cellular energy
the movement of materials through a cell membrane using cellular energy
the process by which molecules move from an area of higher concentration
to an area of lower concentration
Examples of Passive Transport:
(a)
Active Transport
some substances can pass through the membrane while others can not.
the movement of dissovled materials through a cell membrane without using
cellular energy
the movement of materials through a cell membrane using cellular energy
some substances can pass through the membrane while others can not.
Examples of Active Transport:
Transport Proteins & Engulfing
Osmosis and diffusion
Oxygen and Carbon dioxide
Plymolsis
Why are cells small?
The outside must be able to transport Oxygen, carbon dioxide, and other materials in and out of the cell, but has to do it quickly.
They use the cellular energy
the process in which cells lose water when they are placed in a hypertonic solution
The process of proccesses
What does a selectively permidable membrane do?
What makes a cell shrivel?
It will lose too much water and shrivel up in a hypertonic environment.
What happens when there is an equal concentration in a cell?
implosion
(an instance of something collapsing violently inward.)
equilibrium
(Equal movement of both sides) , and normal shape of red blood cell.
disintegration (Bye, bye)
explosion (Kaboom)
What happens when there is High salt solution (water concentration low outside) to the cells?
Cells will burst and release their contents (Delicous)
Cells will shrink and will become dehydrated (water moves out of cell)
Cells will expand and become hydrated (Hyrdration is key when it comes to cells :)
What happens when a salt has low salt solution (water concentration is high outside the cell) ?
Water moves into the cell, causing it to swell.
What does a cell membrane do?
Protects from the outside enviorment
Concentration of a substance is the amount given in what?
What is Plasmolysis?
Plant cell shrinks when placed in a Hypertonic solution
What is endocytosis?
Transport moves into the cell.
What is exocytosis?
Transport moving materials out of cell.
What turgor in a cell?
Turgor pressure causes plants to stand upright.
Whats Lyse in a cell?
Causes cell destruction.
How do plants get Carbon dioxide?
It takes it in from the stomata, from the air
What types of cells does Respiration take place in?
Plant cells and animal cells.
Animal cells.
Plant cells.
Not plant or animal cells.
What does photosynthesis mean?
Photo - light
synthesis - take in
Photo - picture
synthesis - combination of things
photo - light
synthesis - combination of things
photo - picture
synthesis - take in
