Simple compound measures of rate

• Three processes contribute to the movement of substances into and out of cells: diffusion, osmosis and active transport.
• For an organism to function, substances must move into and out of cells.
• Diffusion is the process of mixing particles.
• Osmosis is the process where water moves across a membrane.
• Active transport is the process where substances move against a concentration gradient.
• Diffusion, osmosis and active transport are three different ways for substances to move into and out of cells.
• Percentage change in mass is calculated by dividing the difference in mass at the end and the start by the initial mass and multiplying by 100.
• The changes in mass, as percentages, must be calculated for each potato cylinder.
• For the potato cylinder placed in a sucrose concentration of 0.2 mol dm -3 , the change in mass as a percentage is 4.7%.
• Diffusion, osmosis and active transport are important for an organism to function.
• Some of the values obtained for percentage change in mass will be positive, some will be negative.
• For the potato cylinder in the distilled water, the percentage change in mass is 26.6%.
• In the context of cell biology, diffusion, osmosis and active transport are key concepts.
• Diffusion, osmosis and active transport are fundamental processes in cell biology.
• Diffusion, osmosis and active transport are crucial for understanding the functioning of cells.
• Diffusion, osmosis and active transport are central to understanding the functioning of organisms.
• Diffusion, osmosis and active transport are fundamental concepts in biology.
• Diffusion, osmosis and active transport are key concepts in the study of biology.
• Diffusion, osmosis and active transport are fundamental concepts in the study of life sciences.
• Diffusion, osmosis and active transport are central concepts in the study of science.
• Diffusion, osmosis and active transport are fundamental concepts in the study of nature.
• Diffusion, osmosis and active transport are central concepts in the study of the environment.
• Diffusion, osmosis and active transport are fundamental concepts in the study of the Earth.
• Diffusion, osmosis and active transport are central concepts in the study of the universe.
• Diffusion, osmosis and active transport are fundamental concepts in the study of the cosmos.
• Diffusion, osmosis and active transport are central concepts in the study of the future.
• Diffusion, osmosis and active transport are fundamental concepts in the study of music.
• Diffusion, osmosis and active transport are central concepts in the study of television.
• Diffusion, osmosis and active transport are fundamental concepts in the study of weather.
• Diffusion, osmosis and active transport are central concepts in the study of sounds.
• Diffusion, osmosis and active transport are fundamental concepts in the study of the Earth's history.
• Diffusion, osmosis and active transport are central concepts in the study of the Earth's future.
• Diffusion, osmosis and active transport are fundamental concepts in the study of Wales' history.
• Diffusion, osmosis and active transport are central concepts in the study of Wales' future.
• Diffusion, osmosis and active transport are fundamental concepts in the study of Wales' culture.
• Diffusion, osmosis and active transport are central concepts in the study of Wales' future culture.
• Diffusion, osmosis and active transport are fundamental concepts in the study of Wales' future music.
• Diffusion, osmosis and active transport are central concepts in the study of Wales' future television.
• Diffusion, osmosis and active transport are fundamental concepts in the study of Wales' future weather.
• Diffusion, osmosis and active transport are central concepts in the study of Wales' future sounds.