Quiz on Homeostasis and Transport

What is passive transport?

• Movement of substances using ATP

• Movement of substances against the concentration gradient

• Movement of substances without energy input

• Movement of substances only in hypertonic solutions

What does osmosis specifically refer to?

• Movement of large particles into the cell

• Movement of ions through ion channels

• Movement of water across a membrane

• Movement of solutes across a membrane

What is the role of carrier proteins in facilitated diffusion?

• To actively transport molecules using ATP

• To bind and transport molecules across the membrane

• To create a concentration gradient

• To form vesicles for endocytosis

What happens to a cell in a hypertonic solution?

• It remains unchanged

• It absorbs excess water

• It shrinks and loses turgor pressure

• It swells and bursts

What is the sodium-potassium pump responsible for?

• Creating a concentration gradient for water

• Facilitating osmosis

• Maintaining ion concentrations across the membrane

• Transporting glucose into the cell

What is the primary difference between active and passive transport?

• Active transport requires energy, passive does not

• Passive transport is faster than active transport

• Passive transport can only occur in isotonic solutions

• Active transport only occurs in plant cells

What is plasmolysis?

• The bursting of a cell due to excess water

• The movement of solutes into a cell

• The shrinking of a cell away from its cell wall

• The process of water entering a cell

What is endocytosis?

• The process of engulfing substances into a cell

• The process of releasing substances from a cell

• The passive transport of ions

• The movement of water across a membrane

Which type of transport requires energy?

• Diffusion

• Active transport

• Osmosis

• Facilitated diffusion

What is the function of exocytosis?

• To transport ions across the membrane

• To expel substances from the cell

• To intake large particles into the cell

• To maintain equilibrium in the cell