Cellular Transport Mastery

A cell is placed in a hypertonic solution. Which of the following processes would the cell most likely use to MAINTAIN its internal concentrations?

• Active transport

• Passive transport

• Endocytosis

• Exocytosis

Tags

NGSS.HS-LS1-3

Which of the following best describes the movement of molecules in osmosis?

• From an area of low solute concentration to an area of high solute concentration without energy input

• From an area of high solute concentration to an area of low solute concentration without energy input

• From an area of low solute concentration to an area of high solute concentration with energy input

• From an area of high solute concentration to an area of low solute concentration with energy input

During neurotransmission, the release of neurotransmitters into the synaptic cleft is an example of which cellular process?

• Passive transport

• Active transport

• Endocytosis

• Exocytosis

What is a key difference between active transport and passive transport?

• Active transport requires cellular energy, while passive transport does not

• Passive transport requires cellular energy, while active transport does not

• Active transport can only move materials into the cell, while passive transport can move materials in both directions

• Passive transport can only move materials into the cell, while active transport can move materials in both directions

Which of the following scenarios is an example of endocytosis?

• Oxygen molecules moving from the lungs into the bloodstream

• A white blood cell engulfing a bacterium

• Glucose molecules moving from the gut into the bloodstream

• Sodium ions being pumped out of a nerve cell

What is the primary role of the sodium-potassium pump in active transport?

• To pump sodium and potassium ions into the cell to equalize ion concentrations

• To pump sodium and potassium ions out of the cell to equalize ion concentrations

• To pump sodium ions out of the cell and potassium ions into the cell against their concentration gradients

• To pump potassium ions out of the cell and sodium ions into the cell against their concentration gradients

Which of the following best explains why osmosis is considered a type of passive transport?

• It involves the transport of water across a semipermeable membrane without the use of cellular energy

• It requires ATP to move water across a semipermeable membrane

• It is the process by which cells actively transport water molecules to maintain homeostasis

• It only occurs in prokaryotic cells without mitochondria

Which of the following statements is true regarding the process of exocytosis?

• It is a form of passive transport that moves substances into the cell

• It is an active process that cells use to expel waste and secrete substances

• It occurs without the need for ATP and involves the fusion of vesicles with the plasma membrane

• It is the process by which cells take in large particles by engulfing them in vesicles

In the context of cellular transport, what is the main function of transport proteins found in the cell membrane?

• To provide structural support to the cell membrane

• To facilitate the diffusion of ions and molecules across the membrane

• To synthesize lipids for the cell membrane

• To act as receptors for cell signaling processes

How does the cell membrane maintain homeostasis during osmosis when faced with a hypotonic external environment?

• By allowing water to leave the cell through active transport

• By preventing any movement of water into or out of the cell

• By allowing water to enter the cell through aquaporins until equilibrium is reached

• By using contractile vacuoles to pump excess water out of the cell

Tags

NGSS.HS-LS1-3