Cell
Compartments
Compartments
These organelles are where the Krebs cycle occurs.
What are mitochondria?
These proteins are embedded in phospholipid bilayer and create semi-permeable channels.
The term for when water moves from an area of higher to lower free water concentration (lower to higher solute concentration).
What is osmosis?
This type of lipid makes up the cell membrane.
What are phospholipids?
The plasma membrane exhibits ____________, allowing some substances to cross it more easily than others
What is selective permeability?
The three types of fiber that make up the cytoskeleton.
What are microtubules, microfilaments, and intermediate filaments?
The term for transport is the net movement of molecules from regions of high concentration to regions of low concentration without the direct input of metabolic energy.
What is passive transport?
The condition that describes when solute concentration is less than that inside the cell; the cell gains water.
What is hypotonic?
This is the term for the semifluid part of the cytoplasm.
What is the cytosol?
These types of molecules freely pass across the cell membrane.
What are small, nonpolar molecules?
The nuclear envelope, the endoplasmic reticulum, the Golgi apparatus, the lysosomes, the vacuoles, and the plasma membrane.
What is the endomembrane system?
These proteins transport large quantities of water across membranes.
What are aquaporins?
This is the equation for solute potential.
Ψs= -iCRT
This is the term for a molecule that contains both a hydrophobic and hydrophilic regions.
What is amphipathic?
This section of phospholipids prevents the movement of ions and polar molecules across the membrane.
What are the nonpolar hydrocarbon tails?
This is the term for when a cell engulfs another cell, forming a food vacuole.
What is phagocytosis?
These play a key role in cell-cell recognition, are important in organ &
tissue development and are the basis for rejection of foreign cells by
immune system.
What are membrane carbohydrates?
Water potential is affected by these two factors.
What is the pressure and amount of solute?
This is the term for the model that states that the membrane is a mosaic of protein molecules bobbing in a fluid bilayer of phospholipids.
What is the fluid mosaic model?
This feature of Bacteria, Archaea, Fungi, and plants provides a structural boundary as well as a permeability barrier for some substances.
What is a cell wall?
This is the endosymbiont theory.
What is the theory that an early ancestor of eukaryotic cells engulfed a non-photosynthetic prokaryotic cell, which formed an endosymbiont relationship with its host?
Two ways water molecules transport across the membrane.
What is osmosis and through aquaporins?
The contraction of the membrane of a plant cell as a result of loss of water from the cell.
What is plasmolysis?
This macromolecule reduces membrane fluidity at moderate temperatures, but at low temperatures, it hinders solidification.
What is cholesterol?
These three macromolecules are featured in the plasma membrane.
What are steroids (cholesterol), glycoproteins, and glycolipids?