Podcast
Questions and Answers
What is the term used to describe a cell membrane that only allows certain molecules to move across?
What is the term used to describe a cell membrane that only allows certain molecules to move across?
- Permeable
- Fully permeable
- Semipermeable (correct)
- Impermeable
Which type of cell transport requires energy to move substances across the membrane?
Which type of cell transport requires energy to move substances across the membrane?
- Osmosis
- Active transport (correct)
- Diffusion
- Passive transport
What is the primary component of the cell membrane?
What is the primary component of the cell membrane?
- Cholesterol
- Phospholipid bilayer (correct)
- Proteins
- Nucleic acids
In which state is an animal cell considered to be in equilibrium with its surroundings?
In which state is an animal cell considered to be in equilibrium with its surroundings?
Which structure in the cell membrane helps substances that are too big to pass through?
Which structure in the cell membrane helps substances that are too big to pass through?
What type of transport does not require energy to move substances across the cell membrane?
What type of transport does not require energy to move substances across the cell membrane?
Which type of transport involves the movement of molecules from an area of high concentration to an area of low concentration with no energy required?
Which type of transport involves the movement of molecules from an area of high concentration to an area of low concentration with no energy required?
What is the process called when water diffuses across a selectively permeable membrane from high concentration to low concentration?
What is the process called when water diffuses across a selectively permeable membrane from high concentration to low concentration?
In which type of transport does a molecule move from low concentration to high concentration against the concentration gradient?
In which type of transport does a molecule move from low concentration to high concentration against the concentration gradient?
Which process involves the cell engulfing something?
Which process involves the cell engulfing something?
Which transport mechanism involves the cell releasing something outside?
Which transport mechanism involves the cell releasing something outside?
What does passive transport NOT require?
What does passive transport NOT require?
Which process involves the movement of molecules across the phospholipid bilayer with the help of a transport protein?
Which process involves the movement of molecules across the phospholipid bilayer with the help of a transport protein?
What happens to an animal cell placed in saltwater?
What happens to an animal cell placed in saltwater?
In which state is an animal cell when placed in distilled water?
In which state is an animal cell when placed in distilled water?
Which type of transport moves molecules against the concentration gradient?
Which type of transport moves molecules against the concentration gradient?
What is the main characteristic of osmosis?
What is the main characteristic of osmosis?
