Types of Cell Transport Flashcards

Questions and Answers

What is osmosis?

The cell spends energy to bring large particles into the cell

The movement of molecules from a higher concentration to a lower concentration

Type of passive transport for proteins

The movement of water molecules through a membrane from a higher to a lower concentration (correct)

What is diffusion?

The movement of molecules from a higher concentration to a lower concentration (not water).

What is facilitated diffusion?

Type of passive transport where proteins guide sugar/amino acids in/out of the cell through protein channels.

What does passive transport refer to?

The movement of molecules from higher to lower concentration without using energy. Signup and view all the answers

What is active transport?

The movement of molecules from a lower to a higher concentration using energy. Signup and view all the answers

What is a carrier protein pump?

A protein that uses energy/ATP to push particles out of the cell from low to high concentration. Signup and view all the answers

What is endocytosis?

The process where the cell spends energy and uses vesicles to bring large particles into the cell. Signup and view all the answers

What is phagocytosis?

A type of endocytosis where a cell engulfs a solid in a vesicle and brings it into the cell, using energy. Signup and view all the answers

What is pinocytosis?

A type of endocytosis where a cell engulfs a liquid in a vesicle and uses energy. Signup and view all the answers

What is exocytosis?

A type of active transport when vesicles are used to send particles (wastes/toxins) out of the cell. Signup and view all the answers

What is a hypotonic solution?

A solution where there is a lower concentration of solute and a higher concentration of water molecules. Signup and view all the answers

What is a hypertonic solution?

A solution where there is a higher concentration of solute and a lower concentration of water. Signup and view all the answers

What is an isotonic solution?

A solution where the concentration of solute and water molecules is equal. Signup and view all the answers

Study Notes

Types of Cell Transport

Osmosis: Movement of water molecules through a semipermeable membrane, transitioning from a region of higher water concentration to lower.
Diffusion: Process of molecules (excluding water) moving from an area of higher concentration to one of lower concentration, driven by concentration gradients.
Facilitated Diffusion: A passive transport mechanism where specific proteins assist the movement of sugars and amino acids in and out of the cell via protein channels.
Passive Transport: General category of cellular transport not requiring energy, where substances move from areas of higher concentration to lower concentration.
Active Transport: This process necessitates energy expenditure by the cell to transport molecules from lower to higher concentration areas.
Carrier Protein Pump: A protein that utilizes ATP energy to actively transport particles from a region of low concentration to high concentration outside the cell.
Endocytosis: An energy-dependent process in which cells use vesicles to transport large particles into themselves.
Phagocytosis: A subtype of endocytosis where cells ingest solid particles, encapsulating them in vesicles, requiring energy for the process.
Pinocytosis: Another subtype of endocytosis focused on the ingestion of liquid substances into the cell through vesicle formation, also requiring energy.
Exocytosis: An active transport mechanism that involves the expulsion of waste or toxins from the cell using vesicles.
Hypotonic Solution: A solution with a lower solute concentration (e.g., salt) and higher water concentration, causing cells to swell or plump up.
Hypertonic Solution: Contains a higher solute concentration and lower water concentration, leading to the shrinkage of cells due to water loss.
Isotonic Solution: A state where solute (salt) and water concentrations are equal, resulting in no net movement of water into or out of cells.

Description

Explore the fundamental mechanisms of cell transport with these flashcards. Learn about osmosis, diffusion, and facilitated diffusion, including their definitions and processes. This resource is perfect for students diving into biology or life sciences.