Challenges of Life in the Ocean

What is the process by which molecules move from areas of high concentration to areas of low concentration?

• Permeability

• Active transport

• Osmosis

• Diffusion

What is the term for the diffusion of water across the cell membrane?

• Diffusion

• Active transport

• Permeability

• Osmosis

What does it mean for a cell membrane to be selectively permeable?

• It allows all substances to enter the cell

• It blocks all substances from entering the cell

• It allows substances to move in any direction

• It allows some substances to enter the cell and blocks others

Tags

NGSS.HS-LS1-3

Which process allows proteins within the cell membrane to pump excess sodium in the opposite direction and move through diffusion?

• Diffusion

• Permeability

• Osmosis

• Active transport

What are organisms called that do not actively maintain their salt and water balance?

• Endotherms

• Ectotherms

• Osmoregulators

• Osmoconformers

Which type of marine organisms control their internal concentrations to avoid osmotic problems?

• Endotherms

• Salmon

• Jellyfish

• Ectotherms

Tags

NGSS.HS-LS1-3

What are ectotherms often called?

• Cold-blooded

• Warm-blooded

• Homeotherms

• Marine organisms

What is the term for the movement of molecules from an area of lower concentration to an area of higher concentration?

• Diffusion

• Osmosis

• Active transport

• Permeability

What are organisms called that actively maintain their salt and water balance?

• Osmoconformers

• Osmoregulators

• Endotherms

• Ectotherms

Tags

NGSS.HS-LS1-3

What is the term for the process by which a cell uses energy to move substances across the cell membrane?

• Diffusion

• Osmosis

• Active transport

• Permeability