Transporte en las Células: Difusión y Ósmosis

The video tutorial explores how substances move across cell membranes through diffusion, osmosis, and active transport. It explains diffusion as the movement of particles from high to low concentration, with examples like gas exchange in lungs and nutrient absorption in intestines. Osmosis, a similar process for water, is discussed, highlighting its effects on animal and plant cells. Specialized exchange surfaces in organisms, such as alveoli and root hairs, are also mentioned.

What are the three main transport mechanisms discussed in the video that help cells absorb nutrients and eliminate waste?

• Diffusion, Osmosis, Active Transport

• Photosynthesis, Respiration, Transpiration

• Endocytosis, Exocytosis, Pinocytosis

• Mitosis, Meiosis, Cytokinesis

Which process allows particles to move from an area of high concentration to an area of low concentration?

• Facilitated Transport

• Active Transport

• Diffusion

• Osmosis

What is required for facilitated diffusion to occur?

• Carrier proteins

• A low concentration of solutes

• Energy from ATP

• A high concentration of water

How does osmosis differ from diffusion?

• Osmosis requires energy input

• Osmosis involves the movement of gases

• Osmosis is specific to water movement

• Osmosis occurs against the concentration gradient

What happens to plant cells when they become turgid due to osmosis?

• They burst

• They become rigid

• They dissolve

• They shrink