Biología Celular: Osmosis y Membranas

<p>Canales para el paso de iones (D)</p> Signup and view all the answers

<p>Transporte pasivo (A)</p> Signup and view all the answers

<p>Fosfatidil colina (A)</p> Signup and view all the answers

<p>Un esqueleto de carbono (B)</p> Signup and view all the answers

<p>Contribuye a la polaridad de la molécula (D)</p> Signup and view all the answers

<p>Regular el ingreso y salida de sustancias (C)</p> Signup and view all the answers

<p>Siempre contienen un grupo nitrogenado (A)</p> Signup and view all the answers

<p>Base hidrocarbonada (A)</p> Signup and view all the answers

<p>Moléculas anfipáticas (C)</p> Signup and view all the answers

<p>Lípido ceroso (C)</p> Signup and view all the answers

<p>Actuar como sitios de anclaje para proteínas. (D)</p> Signup and view all the answers

<p>Lípidos anfipáticos. (C)</p> Signup and view all the answers

<p>Comunicación célula-célula (A)</p> Signup and view all the answers

<p>El uso de lípidos anfipáticos. (A)</p> Signup and view all the answers

<p>Sinapsis química (C)</p> Signup and view all the answers

<p>Proporciona rigidez y menor fluidez. (C)</p> Signup and view all the answers

<p>Comunicación autocrina (A)</p> Signup and view all the answers

<p>Permite la difusión pasiva de todas las moléculas. (C)</p> Signup and view all the answers

<p>Uniones gap (D)</p> Signup and view all the answers

<p>La facilidad con la que los lípidos se mueven dentro de la bicapa. (C)</p> Signup and view all the answers

<p>La comunicación entre células a través de proteínas de adhesión (C)</p> Signup and view all the answers

<p>Facilitar la comunicación celular. (A)</p> Signup and view all the answers

<p>La diversidad en tamaño, composición y dinámica. (D)</p> Signup and view all the answers

<p>Transporte pasivo (C)</p> Signup and view all the answers

<p>Moléculas no polares y pequeñas (A)</p> Signup and view all the answers

<p>Transporte paralela o simporte (C)</p> Signup and view all the answers

<p>Regula la unión a proteínas transportadoras (C)</p> Signup and view all the answers

<p>Sustancias que se transportan en direcciones opuestas (D)</p> Signup and view all the answers

<p>Facilitan el paso de iones y moléculas (B)</p> Signup and view all the answers

<p>El gradiente electroquímico (A)</p> Signup and view all the answers

<p>No requerir gasto de energía (B)</p> Signup and view all the answers

<p>Difusión facilitada (A)</p> Signup and view all the answers

<p>Fosforilación después de penetrar (B)</p> Signup and view all the answers

<p>Regulan el paso de iones a través de la membrana celular (B)</p> Signup and view all the answers

<p>El gradiente electroquímico (A)</p> Signup and view all the answers

<p>K+ (B)</p> Signup and view all the answers

<p>Las moléculas se mueven a favor del gradiente de concentración (C)</p> Signup and view all the answers

<p>Reducción en la eficiencia de absorción de glucosa (A)</p> Signup and view all the answers

<p>Necesita energía para mover moléculas en contra de su gradiente (B)</p> Signup and view all the answers

<p>Facilitan el transporte pasivo de sustancias (B)</p> Signup and view all the answers

Microdomains in the cell membrane with lower fluidity compared to surrounding areas. They are enriched with cholesterol, saturated phospholipids, glycolipids, and specific proteins.

The ability of lipid molecules in the membrane to move. This property is influenced by lipid composition and temperature.

The basic structure of cell membranes, formed by two layers of phospholipid molecules.

A lipid with both a hydrophilic (water-loving) and a hydrophobic (water-fearing) end.

Lipids form the structural base of cell membranes, representing about 98% of their composition, influencing fluidity and permeability.

The ability of the membrane to allow certain substances to pass through.

Proteins are attached to the cell membrane and play important roles in various cellular functions.

Process where cells bind to each other through specific molecules on the cell surface.

Lipids containing a phosphate group, a glycerol backbone, and fatty acid tails.

A type of phospholipid with a choline head group.

A phospholipid with two phosphate groups attached to a glycerol backbone.

A type of lipid containing a sphingosine backbone and a fatty acid.

The outer boundary of the cell.

A three-carbon alcohol that forms the backbone of many lipids.

Phospholipid with glycerol backbone.

Phosphate, glycerol, fatty acids, and a choline or other head group.

The movement of substances across cell membranes; it can occur through active or passive mechanisms.

The movement of molecules across a cell membrane against their concentration gradient with energy expenditure.

Movement of substances across a cell membrane down their concentration gradient without energy expenditure.

Type of passive transport where molecules move from a high concentration area to a low concentration area, directly through the membrane, without help from proteins.

Difference in concentration of a substance across a space, frequently across a membrane

The process by which cells interact with each other using signaling molecules.

A type of cell signaling where molecules are released into a limited space.

A molecule that carries information between cells.

A type of cell signaling where a cell signals itself.

Direct communication between cells through various mechanisms.

The difference in concentration of a substance across a membrane.

Movement of substances across a membrane without energy input.

Movement of small, nonpolar molecules across a membrane without help from proteins.

Movement of substances across a membrane with the help of protein channels or carriers.

Two substances moving across a membrane in the same direction.

Two substances moving in opposite directions across a membrane.

The half-maximal velocity of a reaction or transport process.

Outer boundary of the cell, controlling what enters and exits.

Movimiento de sustancias a través de la membrana celular, ayudado por proteínas de transporte.

Transporte pasivo a través de la membrana celular, asistido por proteínas.

Movimiento de sustancias a través de la membrana celular en contra del gradiente, que requiere energía.

Movimiento de sustancias a través de la membrana celular desde un área de alta concentración a una de baja concentración, sin ayuda de proteínas.

Fuerza impulsora que impulsa el movimiento de iones a través de la membrana considerando la diferencia de concentración y carga.

Movimiento de sustancias a través de la membrana celular, usando un ionóforo para transportar iones.

Proteínas que controlan el paso de iones a través de la membrana celular.Su actividad puede ser regulada.

Proteínas que facilitan el transporte de sustancias a través de la membrana celular.

Molécula que crea un canal (o vía) a través de una membrana celular, facilitando el transporte de iones.

Movimiento de sustancias a través de un canal proteico en la membrana, normalmente para iones.