Transport Across Membranes (LC 2027) (Leaving Cert Biology): Quizzes
📚Quizzes
Practise the questions
12 questions from this quiz
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Practise the questions
12 questions from this quiz
What type of process is diffusion?
What type of process is diffusion?
Passive - no energy required
Which gas diffuses from the lungs into the bloodstream?
Which gas diffuses from the lungs into the bloodstream?
Oxygen
Which molecules can pass freely through selectively permeable membranes?
Which molecules can pass freely through selectively permeable membranes?
Small molecules like water and oxygen
What is osmosis?
What is osmosis?
Movement of water across a membrane
What is the substance that gets dissolved in a solution called?
What is the substance that gets dissolved in a solution called?
Solute
What happens to an animal cell in a hypotonic solution?
What happens to an animal cell in a hypotonic solution?
It swells and may burst
What term describes an animal cell that has shrunk in a hypertonic solution?
What term describes an animal cell that has shrunk in a hypertonic solution?
Crenated
What is turgor pressure in plant cells?
What is turgor pressure in plant cells?
Outward pressure against the cell wall
What is plasmolysis?
What is plasmolysis?
Cytoplasm shrinking away from cell wall
How does salt preserve food?
How does salt preserve food?
Creates hypertonic environment
What does active transport require that diffusion does not?
What does active transport require that diffusion does not?
Energy in the form of ATP
How do root hair cells absorb minerals from soil?
How do root hair cells absorb minerals from soil?
By active transport