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WorksheetsUnderstanding Osmosis for Grade 7
Total questions: 10
Worksheet time: 5mins
What is the process of water diffusion called?
Filtration
Condensation
Evaporation
Osmosis
Define osmotic pressure.
Osmotic pressure is the amount of energy required to dissolve a solute in a solvent.
Osmotic pressure is the temperature at which a solution boils.
Osmotic pressure is the force exerted by solute particles in a vacuum.
Osmotic pressure is the pressure needed to stop the flow of solvent into a solution through a semipermeable membrane.
How does osmosis occur in cells?
Osmosis is the process of active transport of nutrients into the cell.
Osmosis is the movement of solutes from high to low concentration.
Osmosis occurs only in plant cells and not in animal cells.
Osmosis is the movement of water through a semipermeable membrane from low to high solute concentration.
What happens to a cell in a hypertonic solution?
The cell shrinks due to water loss.
The cell swells due to excess water.
The cell remains unchanged in size.
The cell bursts from too much water.
What is the effect of osmosis on plant cells?
Osmosis only affects animal cells, not plant cells.
Osmosis causes plant cells to become turgid in hypotonic solutions and can lead to plasmolysis in hypertonic solutions.
Osmosis has no effect on plant cells in any solution.
Osmosis causes plant cells to shrink in hypotonic solutions.
Describe a simple experiment to demonstrate osmosis.
Place one potato half in saltwater and the other in plain water to observe osmosis.
Boil a potato and measure its weight before and after.
Soak a piece of bread in vinegar and observe changes.
Place two potato halves in sugar water and compare them.
What is the role of the cell membrane in osmosis?
The cell membrane regulates the movement of water during osmosis.
The cell membrane prevents water from entering the cell during osmosis.
The cell membrane has no effect on the process of osmosis.
The cell membrane allows all substances to pass freely during osmosis.
How does osmosis differ from diffusion?
Osmosis is the diffusion of water across a selectively permeable membrane, while diffusion is the movement of any particles from high to low concentration.
Osmosis and diffusion are the same process with different names.
Osmosis is the movement of particles across any membrane.
Diffusion only occurs in gases, while osmosis occurs in liquids.
What occurs to a cell in a hypotonic solution?
The cell absorbs nutrients more efficiently.
The cell remains unchanged in size.
The cell shrinks and becomes dehydrated.
The cell swells and may burst.
Why is osmosis important for living organisms?
Osmosis is the process of cell division in organisms.
Osmosis is important for maintaining cell turgor, nutrient absorption, and waste removal in living organisms.
Osmosis helps in the production of energy in mitochondria.
Osmosis is primarily responsible for photosynthesis.
