WorksheetsCellular Transport Mastery
Total questions: 10
Worksheet time: 5mins
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
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
