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막은 무엇인가?
A key characteristic of life is the ability to separate the external environment from the internal space. To do this, cells have evolved…
막 유동성
Cell membranes are composed of phospholipids, proteins, and carbohydrates loosely attached to one another through chemical interactions. Molecules…
유동모자이크모델
The fluid mosaic model was first proposed as a visual representation of research observations. The model comprises the composition and dynamics of…
전기화학적 구배란 무엇인가?
Adenosine triphosphate, or ATP, is considered the primary energy source in cells. However, energy can also be stored in the electrochemical gradient…
확산
Diffusion is the passive movement of substances down their concentration gradients—requiring no expenditure of cellular energy. Substances,…
삼투
Approximately 60% to 95% of the weight of living organisms is attributed to water. Therefore, maintaining appropriate water balance within cells is…
동물의 긴장성
The tonicity of a solution determines if a cell gains or loses water in that solution. The tonicity depends on the permeability of the cell membrane…
식물의 긴장성
Tonicity describes the capacity of a cell to lose or gain water. It depends on the quantity of solute that does not penetrate the membrane. Tonicity…
단백질의 연계
The cell membrane—or plasma membrane—is an ever-changing landscape. It is described as a fluid mosaic as various macromolecules are embedded in…
촉진 수송
The chemical and physical properties of plasma membranes cause them to be selectively permeable. Since plasma membranes have both hydrophobic and…
1차 능동수송
In contrast to passive transport, active transport involves a substance being moved through membranes in a direction against its concentration or…
2차 능동수송
One example of how cells use the energy contained in electrochemical gradients is demonstrated by glucose transport into cells. The ion vital to this…
수용체매개 내포작용
Receptor-mediated endocytosis is a process through which bulk amounts of specific molecules can be imported into a cell after binding to cell…
음세포작용
Cells use energy-requiring bulk transport mechanisms to transfer large particles, or large amounts of small particles, into or out of the cell. The…
식세포작용
Cells pull particles inward and engulf them in spherical vesicles in an energy-requiring process called endocytosis. Phagocytosis (“cellular…
외포작용
Exocytosis is used to release material from cells. Like other bulk transport mechanisms, exocytosis requires energy. While endocytosis takes…
형광 상관 분광학에 의해 측정 된 차 림프구의 플라즈마 막 분자 확산
Fluorescence correlation spectroscopy (FCS) is a powerful technique for studying the diffusion of molecules within biological membranes with high…
The Cell-based L-Glutathione Protection Assays to Study Endocytosis and Recycling of Plasma Membrane Proteins
Membrane trafficking involves transport of proteins from the plasma membrane to the cell interior (i.e. endocytosis) followed by trafficking to…
유발, 자발적, 미니어처 시냅틱 활동을하는 동안 FM 염료를 사용하여 시냅틱 소포 재활용의 시험
Synaptic vesicles in functional nerve terminals undergo exocytosis and endocytosis. This synaptic vesicle recycling can be effectively analyzed using…

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